Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    18/08/2024, 00:42

General

  • Target
    a4bcc3d83db92af30efb92b91c173fde_JaffaCakes118.exe
  • Size 4.1MB
  • Sample240818-a2nxrawcqa
  • SHA256 ed20ff85f5df587140e0780e16a5eb28df94e1b6330c8256de39d94b5a772e83
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • RMS

    Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 64 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4bcc3d83db92af30efb92b91c173fde_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a4bcc3d83db92af30efb92b91c173fde_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2888
    • C:\Program Files\Cosmopolitanize\Beasley.exe
      "C:\Program Files\Cosmopolitanize\Beasley.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3068
      • C:\Program Files\Cosmopolitanize\Beasley.exe
        "C:\Program Files\Cosmopolitanize\Beasley.exe" -second
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1860
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c SchTasks /create /f /XML %temp%\Log942.xml /TN \microsoft\windows\defrag\scheduleddefrag && schtasks /Change /TN \microsoft\windows\defrag\scheduleddefrag /ENABLE && schtasks /run /TN \microsoft\windows\defrag\scheduleddefrag
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:372
      • C:\Windows\SysWOW64\schtasks.exe
        SchTasks /create /f /XML C:\Users\Admin\AppData\Local\Temp\Log942.xml /TN \microsoft\windows\defrag\scheduleddefrag
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2896
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Change /TN \microsoft\windows\defrag\scheduleddefrag /ENABLE
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1116
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /run /TN \microsoft\windows\defrag\scheduleddefrag
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2644
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {1671B1BF-148E-4E8E-ADCE-DB04EB934C1E} S-1-5-21-2703099537-420551529-3771253338-1000:XECUDNCD\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:276
    • C:\Program Files\Cosmopolitanize\Beasley.exe
      "C:\Program Files\Cosmopolitanize\Beasley.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1492

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        nsExec.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsjB424.tmp\nsExec.dll
        • Size 7KB
        • SHA256 1f18f4126124b0551f3dbcd0fec7f34026f930ca509f04435657cedc32ae8c47
        • MD5 SHA1 SHA512 SSDEEP

        nsProcess.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsjB424.tmp\nsProcess.dll
        • Size 4KB
        • SHA256 30c6c3dd3cc7fcea6e6081ce821adc7b2888542dae30bf00e881c0a105eb4d11
        • MD5 SHA1 SHA512 SSDEEP

        Beasley.exe

        • Path \Program Files\Cosmopolitanize\Beasley.exe
        • Size 11.2MB
        • SHA256 a3b12707957c0875e23c202cea0268981623760072b5f7780ff62fd435311c6f
        • MD5 SHA1 SHA512 SSDEEP

        NSISList.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjB424.tmp\NSISList.dll
        • Size 105KB
        • SHA256 df3621f83e9d11be45e0e617b899c4ab0241f60ed56494e892dc449482058402
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjB424.tmp\System.dll
        • Size 12KB
        • SHA256 6950991102462d84fdc0e3b0ae30c95af8c192f77ce3d78e8d54e6b22f7c09ba
        • MD5 SHA1 SHA512 SSDEEP

        registry.dll

        • Path \Users\Admin\AppData\Local\Temp\nsjB424.tmp\registry.dll
        • Size 24KB
        • SHA256 0b25b20f26de5d5bd795f934c70447112b4981343fcb2dfab3374a4018d28c2d
        • MD5 SHA1 SHA512 SSDEEP

        memory/1492-4105-0x0000000000400000-0x0000000000FE0000-memory.dmp

        memory/1860-4106-0x0000000000400000-0x0000000000FE0000-memory.dmp

        memory/1860-4107-0x0000000000400000-0x0000000000FE0000-memory.dmp

        memory/1860-4109-0x0000000000400000-0x0000000000FE0000-memory.dmp

        memory/1860-4114-0x0000000000400000-0x0000000000FE0000-memory.dmp

        memory/1860-4117-0x0000000000400000-0x0000000000FE0000-memory.dmp

        memory/1860-4120-0x0000000000400000-0x0000000000FE0000-memory.dmp

        memory/2888-12-0x0000000000350000-0x0000000000374000-memory.dmp

        memory/3068-1735-0x0000000000400000-0x0000000000FE0000-memory.dmp