Nanocore_Windows_Media_BackgroundPlayback_bat_2019-07-25_02_30.txt

* MalFamily: "Nanocore"

* MalScore: 10.0

* File Name: "Windows.Media.BackgroundPlayback.bat"
* File Size: 1317380
* File Type: "PE32 executable (GUI) Intel 80386, for MS Windows"
* SHA256: "1160444d8724cbe227cdbeedeb68377d99dca362ca09c70eb799d3cf6ef9af93"
* MD5: "49af8c2951b2335384bb0b68cb878a4b"
* SHA1: "e3499b7ad2b4189c84fab414758d7a2e54c1ecdb"
* SHA512: "607ee8071f5a0d9a4ce7b35df55e9ee55686447faefc8852e7995f6d6711c72a19bf6d579882d2b17e142db9bc52f89b357341aac420cd9bb25ed77303b1b145"
* CRC32: "743A1E83"
* SSDEEP: "24576:XAHnh+eWsN3skA4RV1Hom2KXMmHaToExdbxRODyXNy5:Kh+ZkldoPK8YaToExbwuXy"

* Process Execution:
    "Windows.Media.BackgroundPlayback.bat",
    "RegSvcs.exe"


* Executed Commands:

* Signatures Detected:

        "Description": "Attempts to connect to a dead IP:Port (2 unique times)",
        "Details":

                "IP": "158.69.206.20:3231"


                "IP": "127.0.0.1:3231"




        "Description": "Creates RWX memory",
        "Details":


        "Description": "A process attempted to delay the analysis task.",
        "Details":

                "Process": "RegSvcs.exe tried to sleep 728 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"




        "Description": "Expresses interest in specific running processes",
        "Details":

                "process": "RegSvcs.exe"


                "process": "armsvc.exe"




        "Description": "Reads data out of its own binary image",
        "Details":

                "self_read": "process: Windows.Media.BackgroundPlayback.bat, pid: 2080, offset: 0x00000000, length: 0x00141a04"


                "self_read": "process: RegSvcs.exe, pid: 1816, offset: 0x00000000, length: 0x00001000"


                "self_read": "process: RegSvcs.exe, pid: 1816, offset: 0x00000080, length: 0x00000200"


                "self_read": "process: RegSvcs.exe, pid: 1816, offset: 0x00000178, length: 0x00000200"


                "self_read": "process: RegSvcs.exe, pid: 1816, offset: 0x00005b20, length: 0x00000200"


                "self_read": "process: RegSvcs.exe, pid: 1816, offset: 0x00005b3c, length: 0x00000200"




        "Description": "The binary likely contains encrypted or compressed data.",
        "Details":

                "section": "name: .rsrc, entropy: 7.71, characteristics: IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ, raw_size: 0x00077400, virtual_size: 0x00077348"




        "Description": "Executed a process and injected code into it, probably while unpacking",
        "Details":

                "Injection": "Windows.Media.BackgroundPlayback.bat(2080) -> RegSvcs.exe(1816)"




        "Description": "Attempts to remove evidence of file being downloaded from the Internet",
        "Details":

                "file": "C:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\RegSvcs.exe:Zone.Identifier"




        "Description": "Installs itself for autorun at Windows startup",
        "Details":

                "key": "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\vEvDBIzkGL"


                "data": "C:\\Users\\Public\\vEvDBIzkGL.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": "Creates a slightly modified copy of itself",
        "Details":

                "file": "C:\\Users\\user\\AppData\\Roaming\\assignedaccessproviderevents\\Windows.Media.BackgroundPlayback.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:

* Mutexes:
    "Global\\CLR_CASOFF_MUTEX",
    "Global\\28b0bad5-2282-40a5-99bf-5e0895fcf882",
    "Global\\.net clr networking"


* Modified Files:
    "C:\\Users\\user\\AppData\\Roaming\\assignedaccessproviderevents\\Windows.Media.BackgroundPlayback.bat",
    "C:\\Users\\Public\\vEvDBIzkGL.vbs",
    "C:\\Users\\user\\AppData\\Roaming\\C1515A12-1764-4632-ACE9-A9DFF9253200\\run.dat",
    "C:\\Program Files (x86)\\DSL Subsystem\\dslss.exe"


* 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:\\Windows\\Microsoft.NET\\Framework\\v2.0.50727\\RegSvcs.exe:Zone.Identifier"


* Modified Registry Keys:
    "HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\vEvDBIzkGL",
    "HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Run\\DSL Subsystem"


* Deleted Registry Keys:

* DNS Communications:

        "type": "A",
        "request": "kene321.ddns.net",
        "answers":

                "data": "158.69.206.20",
                "type": "A"





* Domains:

        "ip": "158.69.206.20",
        "domain": "kene321.ddns.net"



* Network Communication - ICMP:

* Network Communication - HTTP:

* Network Communication - SMTP:

* Network Communication - Hosts:

* Network Communication - IRC: