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- * MalFamily: "Nanocore"
- * MalScore: 10.0
- * File Name: "Exes_f8a4f08a5f799b7772d99ff45fbf8d66.exe"
- * File Size: 1468928
- * File Type: "PE32 executable (GUI) Intel 80386, for MS Windows"
- * SHA256: "f680f907beade018b497ee2ce4faaf1a1b04ebb7103d5154f39d7e06253cbe79"
- * MD5: "f8a4f08a5f799b7772d99ff45fbf8d66"
- * SHA1: "ba0ded8918f696efb2238488f8554d2dbe838a6a"
- * SHA512: "8fcfc17ce2c8197d4c8636ce57a880ffcbfcc39fa85353e9d32c4e48d51dd8b2769502c44ae42706093ace4aaea711f7b6ab83b0ddd3fcb3c090ace50ea2b1da"
- * CRC32: "39B61659"
- * SSDEEP: "24576:DAHnh+eWsN3skA4RV1Hom2KXMmHaP1HeUo3H50KSoFmyqmcm/aOpkU5:Oh+ZkldoPK8YaPpzoJ0K1FmThFwT"
- * Process Execution:
- "Exes_f8a4f08a5f799b7772d99ff45fbf8d66.exe",
- "RegAsm.exe",
- "schtasks.exe",
- "schtasks.exe",
- "services.exe",
- "svchost.exe",
- "WMIADAP.exe",
- "svchost.exe",
- "WmiPrvSE.exe",
- "svchost.exe"
- * Executed Commands:
- "\"schtasks.exe\" /create /f /tn \"DSL Subsystem\" /xml \"C:\\Users\\user\\AppData\\Local\\Temp\\tmp6B6D.tmp\"",
- "\"schtasks.exe\" /create /f /tn \"DSL Subsystem Task\" /xml \"C:\\Users\\user\\AppData\\Local\\Temp\\tmp763C.tmp\"",
- "\\\\?\\C:\\Windows\\system32\\wbem\\WMIADAP.EXE wmiadap.exe /F /T /R",
- "C:\\Windows\\system32\\wbem\\wmiprvse.exe -Embedding",
- "C:\\Windows\\system32\\svchost.exe -k netsvcs"
- * Signatures Detected:
- "Description": "Attempts to connect to a dead IP:Port (1 unique times)",
- "Details":
- "IP": "79.134.225.110:5654"
- "Description": "Creates RWX memory",
- "Details":
- "Description": "A process attempted to delay the analysis task.",
- "Details":
- "Process": "WmiPrvSE.exe tried to sleep 300 seconds, actually delayed analysis time by 0 seconds"
- "Process": "svchost.exe tried to sleep 480 seconds, actually delayed analysis time by 0 seconds"
- "Process": "RegAsm.exe tried to sleep 1100 seconds, actually delayed analysis time by 0 seconds"
- "Description": "At least one IP Address, Domain, or File Name was found in a crypto call",
- "Details":
- "ioc": "v2.0.50727"
- "ioc": "2.0.0.0"
- "Description": "Expresses interest in specific running processes",
- "Details":
- "process": "RegAsm.exe"
- "Description": "Reads data out of its own binary image",
- "Details":
- "self_read": "process: Exes_f8a4f08a5f799b7772d99ff45fbf8d66.exe, pid: 2736, offset: 0x00000000, length: 0x00166a00"
- "self_read": "process: RegAsm.exe, pid: 2304, offset: 0x00000000, length: 0x00001000"
- "self_read": "process: RegAsm.exe, pid: 2304, offset: 0x00000080, length: 0x00000200"
- "self_read": "process: RegAsm.exe, pid: 2304, offset: 0x00000178, length: 0x00000200"
- "self_read": "process: RegAsm.exe, pid: 2304, offset: 0x0000a720, length: 0x00000200"
- "self_read": "process: RegAsm.exe, pid: 2304, offset: 0x0000a73c, length: 0x00000200"
- "Description": "A process created a hidden window",
- "Details":
- "Process": "RegAsm.exe -> \"schtasks.exe\" /create /f /tn \"DSL Subsystem\" /xml \"C:\\Users\\user\\AppData\\Local\\Temp\\tmp6B6D.tmp\""
- "Process": "RegAsm.exe -> \"schtasks.exe\" /create /f /tn \"DSL Subsystem Task\" /xml \"C:\\Users\\user\\AppData\\Local\\Temp\\tmp763C.tmp\""
- "Process": "svchost.exe -> \\\\?\\C:\\Windows\\system32\\wbem\\WMIADAP.EXE"
- "Description": "The binary likely contains encrypted or compressed data.",
- "Details":
- "section": "name: .rsrc, entropy: 7.95, characteristics: IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ, raw_size: 0x0009c400, virtual_size: 0x0009c258"
- "Description": "Executed a process and injected code into it, probably while unpacking",
- "Details":
- "Injection": "Exes_f8a4f08a5f799b7772d99ff45fbf8d66.exe(2736) -> RegAsm.exe(2304)"
- "Description": "Attempts to remove evidence of file being downloaded from the Internet",
- "Details":
- "file": "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\RegAsm.exe:Zone.Identifier"
- "Description": "Attempts to repeatedly call a single API many times in order to delay analysis time",
- "Details":
- "Spam": "services.exe (500) called API GetSystemTimeAsFileTime 3653379 times"
- "Description": "Attempts to execute a Living Off The Land Binary command for post exeploitation",
- "Details":
- "MITRE T1078 - schtask": "(Tactic: Execution, Persistence, Privilege Escalation)"
- "Description": "Installs itself for autorun at Windows startup",
- "Details":
- "key": "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\csuxrljtye"
- "data": "C:\\Users\\Public\\csuxrljtye.vbs"
- "key": "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Run\\DSL Subsystem"
- "data": "C:\\Program Files (x86)\\DSL Subsystem\\dslss.exe"
- "Description": "Exhibits behavior characteristic of Nanocore RAT",
- "Details":
- "Description": "File has been identified by 21 Antiviruses on VirusTotal as malicious",
- "Details":
- "FireEye": "Generic.mg.f8a4f08a5f799b77"
- "Cybereason": "malicious.918f69"
- "F-Prot": "W32/AutoIt.IJ.gen!Eldorado"
- "Symantec": "ML.Attribute.HighConfidence"
- "APEX": "Malicious"
- "Paloalto": "generic.ml"
- "Endgame": "malicious (high confidence)"
- "F-Secure": "Heuristic.HEUR/AGEN.1041823"
- "Invincea": "heuristic"
- "McAfee-GW-Edition": "BehavesLike.Win32.Downloader.tc"
- "Cyren": "W32/AutoIt.IJ.gen!Eldorado"
- "Avira": "HEUR/AGEN.1041823"
- "Antiy-AVL": "Trojan/Generic.ASVCS3S.1E5"
- "Microsoft": "Trojan:Win32/Wacatac.B!ml"
- "ZoneAlarm": "UDS:DangerousObject.Multi.Generic"
- "Acronis": "suspicious"
- "ESET-NOD32": "a variant of Win32/Injector.Autoit.EFF"
- "Ikarus": "Trojan.Autoit"
- "MaxSecure": "Trojan.Malware.300983.susgen"
- "CrowdStrike": "win/malicious_confidence_80% (D)"
- "Qihoo-360": "HEUR/QVM10.1.2909.Malware.Gen"
- "Description": "Creates a slightly modified copy of itself",
- "Details":
- "file": "C:\\Users\\user\\AppData\\Roaming\\WinSAT\\tpmvscmgr.bat"
- "percent_match": 100
- "Description": "Collects information to fingerprint the system",
- "Details":
- "Description": "Anomalous binary characteristics",
- "Details":
- "anomaly": "Actual checksum does not match that reported in PE header"
- * Started Service:
- "Winmgmt"
- * Mutexes:
- "CicLoadWinStaWinSta0",
- "Local\\MSCTF.CtfMonitorInstMutexDefault1",
- "Global\\CLR_CASOFF_MUTEX",
- "Global\\8ffc834d-3ffb-4c79-b1e6-b8accad70950",
- "Global\\.net clr networking",
- "Global\\ADAP_WMI_ENTRY",
- "Global\\RefreshRA_Mutex",
- "Global\\RefreshRA_Mutex_Lib",
- "Global\\RefreshRA_Mutex_Flag"
- * Modified Files:
- "C:\\Users\\user\\AppData\\Roaming\\WinSAT\\tpmvscmgr.bat",
- "C:\\Users\\Public\\csuxrljtye.vbs",
- "C:\\Users\\user\\AppData\\Roaming\\C1515A12-1764-4632-ACE9-A9DFF9253200\\run.dat",
- "C:\\Program Files (x86)\\DSL Subsystem\\dslss.exe",
- "C:\\Users\\user\\AppData\\Local\\Temp\\tmp6B6D.tmp",
- "C:\\Users\\user\\AppData\\Roaming\\C1515A12-1764-4632-ACE9-A9DFF9253200\\task.dat",
- "C:\\Users\\user\\AppData\\Local\\Temp\\tmp763C.tmp",
- "C:\\Windows\\sysnative\\Tasks\\DSL Subsystem",
- "C:\\Windows\\sysnative\\Tasks\\DSL Subsystem Task",
- "\\Device\\LanmanDatagramReceiver",
- "C:\\Windows\\appcompat\\Programs\\RecentFileCache.bcf",
- "C:\\Windows\\sysnative\\Tasks\\Microsoft\\Windows Defender\\MP Scheduled Scan",
- "C:\\Windows\\SoftwareDistribution\\DataStore\\DataStore.edb",
- "C:\\Windows\\SoftwareDistribution\\DataStore\\Logs\\edb.chk",
- "C:\\Windows\\sysnative\\wbem\\Performance\\WmiApRpl_new.h",
- "C:\\Windows\\sysnative\\wbem\\Performance\\WmiApRpl.h",
- "C:\\Windows\\sysnative\\wbem\\Performance\\WmiApRpl_new.ini",
- "C:\\Windows\\sysnative\\LogFiles\\Scm\\f6f51815-5381-4cb4-a2f8-7a279a2b2025",
- "\\??\\WMIDataDevice",
- "\\??\\PIPE\\samr",
- "C:\\Windows\\sysnative\\wbem\\repository\\WRITABLE.TST",
- "C:\\Windows\\sysnative\\wbem\\repository\\MAPPING1.MAP",
- "C:\\Windows\\sysnative\\wbem\\repository\\MAPPING2.MAP",
- "C:\\Windows\\sysnative\\wbem\\repository\\MAPPING3.MAP",
- "C:\\Windows\\sysnative\\wbem\\repository\\OBJECTS.DATA",
- "C:\\Windows\\sysnative\\wbem\\repository\\INDEX.BTR",
- "\\??\\pipe\\PIPE_EVENTROOT\\CIMV2WMI SELF-INSTRUMENTATION EVENT PROVIDER",
- "\\??\\pipe\\PIPE_EVENTROOT\\CIMV2PROVIDERSUBSYSTEM"
- * Deleted Files:
- "C:\\Program Files (x86)\\DSL Subsystem\\dslss.exe",
- "C:\\Users\\user\\AppData\\Roaming\\C1515A12-1764-4632-ACE9-A9DFF9253200\\DSL Subsystem\\dslss.exe",
- "C:\\Users\\user\\AppData\\Local\\Temp\\tmp6B6D.tmp",
- "C:\\Users\\user\\AppData\\Local\\Temp\\tmp763C.tmp",
- "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\RegAsm.exe:Zone.Identifier",
- "C:\\Windows\\Tasks\\DSL Subsystem.job",
- "C:\\Windows\\Tasks\\DSL Subsystem Task.job",
- "C:\\Windows\\sysnative\\Tasks\\Microsoft\\Windows Defender\\MpIdleTask",
- "C:\\Windows\\sysnative\\Tasks\\Microsoft\\Windows Defender\\MP Scheduled Scan",
- "C:\\Windows\\SoftwareDistribution\\DataStore\\Logs\\edbtmp.log",
- "C:\\Windows\\sysnative\\wbem\\Performance\\WmiApRpl.h",
- "C:\\Windows\\sysnative\\wbem\\Performance\\WmiApRpl_new.h"
- * Modified Registry Keys:
- "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\csuxrljtye",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Run\\DSL Subsystem",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\1CDD8E4B-9C11-4A5C-B274-BF91E107038D\\Path",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\1CDD8E4B-9C11-4A5C-B274-BF91E107038D\\Hash",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tree\\DSL Subsystem\\Id",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tree\\DSL Subsystem\\Index",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\1CDD8E4B-9C11-4A5C-B274-BF91E107038D\\Triggers",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\E0FA044E-120E-427D-A5EE-A3C2A235D445\\Path",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\E0FA044E-120E-427D-A5EE-A3C2A235D445\\Hash",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tree\\DSL Subsystem Task\\Id",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tree\\DSL Subsystem Task\\Index",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\E0FA044E-120E-427D-A5EE-A3C2A235D445\\Triggers",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\CIMOM\\LastServiceStart",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\CIMOM\\PreviousServiceShutdown",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\CIMOM\\ProcessID",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\F6F51815-5381-4CB4-A2F8-7A279A2B2025\\Path",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\F6F51815-5381-4CB4-A2F8-7A279A2B2025\\Hash",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tree\\Microsoft\\Windows Defender\\MP Scheduled Scan\\Id",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tree\\Microsoft\\Windows Defender\\MP Scheduled Scan\\Index",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\F6F51815-5381-4CB4-A2F8-7A279A2B2025\\Triggers",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\TaskCache\\Tasks\\F6F51815-5381-4CB4-A2F8-7A279A2B2025\\DynamicInfo",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\CIMOM\\ThrottleDrege",
- "HKEY_LOCAL_MACHINE\\SYSTEM\\ControlSet001\\services\\Winmgmt\\Parameters\\ServiceDllUnloadOnStop",
- "HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Wbem\\Transports\\Decoupled\\Server",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\Transports\\Decoupled\\Server\\CreationTime",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\Transports\\Decoupled\\Server\\MarshaledProxy",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\Transports\\Decoupled\\Server\\ProcessIdentifier",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\CIMOM\\ConfigValueEssNeedsLoading",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\CIMOM\\List of event-active namespaces",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\ESS\\//./root/CIMV2\\SCM Event Provider",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\IDE\\DiskVBOX_HARDDISK___________________________1.0_____\\5&33d1638a&0&0.0.0_0-00000000-0000-0000-0000-000000000000",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\advapi32.dllMofResourceName",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\en-US\\advapi32.dll.muiMofResourceName",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\drivers\\ACPI.sysACPIMOFResource",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\drivers\\en-US\\ACPI.sys.muiACPIMOFResource",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\drivers\\ndis.sysMofResourceName",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\drivers\\en-US\\ndis.sys.muiMofResourceName",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\DRIVERS\\mssmbios.sysMofResource",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\DRIVERS\\en-US\\mssmbios.sys.muiMofResource",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\DRIVERS\\HDAudBus.sysHDAudioMofName",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\DRIVERS\\en-US\\HDAudBus.sys.muiHDAudioMofName",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\DRIVERS\\intelppm.sysPROCESSORWMI",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\DRIVERS\\en-US\\intelppm.sys.muiPROCESSORWMI",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\System32\\Drivers\\portcls.SYSPortclsMof",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\System32\\Drivers\\en-US\\portcls.SYS.muiPortclsMof",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\DRIVERS\\monitor.sysMonitorWMI"
- * Deleted Registry Keys:
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\CompatibilityAdapter\\Signatures\\DSL Subsystem.job",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\CompatibilityAdapter\\Signatures\\DSL Subsystem.job.fp",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\CompatibilityAdapter\\Signatures\\DSL Subsystem Task.job",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Schedule\\CompatibilityAdapter\\Signatures\\DSL Subsystem Task.job.fp",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\CIMOM\\LastServiceStart",
- "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\WBEM\\WDM\\C:\\Windows\\system32\\DRIVERS\\monitor.sysMonitorWMI"
- * DNS Communications:
- "type": "A",
- "request": "smartcoonect.duckdns.org",
- "answers":
- "data": "79.134.225.110",
- "type": "A"
- * Domains:
- "ip": "79.134.225.110",
- "domain": "smartcoonect.duckdns.org"
- * Network Communication - ICMP:
- * Network Communication - HTTP:
- * Network Communication - SMTP:
- * Network Communication - Hosts:
- * Network Communication - IRC:
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