Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-10-2024 11:58

General

  • Target

    4cb976a25ed5428c57157d63b61a7838_JaffaCakes118.exe

  • Size

    344KB

  • MD5

    4cb976a25ed5428c57157d63b61a7838

  • SHA1

    645cdc5b079ca7a5312edb8974b202c7cfd18813

  • SHA256

    9cb32a863e5dfebc3bbfef1b82d505321e2b381eddc114172a5c6bbcab6bddd9

  • SHA512

    c416be8724e53b5a3a3e8fe9c50519b6d685f5185fa273cecc9970b3cb1a3939c8e2662e21b514780e681538a582b91f75ea195cfd9d2c4583c37acd9997f3e1

  • SSDEEP

    6144:kjJtF12Wv4hE1Z1CuSzSbyg6/w/+GYcWU2E1bAevKjuRgdj:kltFwOhCuLnOkWUd1bAevTW

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 12 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Checks processor information in registry 2 TTPs 8 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4cb976a25ed5428c57157d63b61a7838_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\4cb976a25ed5428c57157d63b61a7838_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4400
    • C:\Users\Admin\AppData\Local\Temp\4cb976a25ed5428c57157d63b61a7838_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\4cb976a25ed5428c57157d63b61a7838_JaffaCakes118.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks BIOS information in registry
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4688
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:1096
      • C:\Windows\SysWOW64\explorer.exe
        "C:\Windows\SysWOW64\explorer.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1904
        • C:\Windows\SysWOW64\explorer.exe
          "C:\Windows\SysWOW64\explorer.exe"
          4⤵
          • Checks BIOS information in registry
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:1600
          • C:\Windows\SysWOW64\notepad.exe
            C:\Windows\SysWOW64\notepad.exe
            5⤵
            • System Location Discovery: System Language Discovery
            PID:4224

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windupdt\winupdate.exe

    Filesize

    344KB

    MD5

    4cb976a25ed5428c57157d63b61a7838

    SHA1

    645cdc5b079ca7a5312edb8974b202c7cfd18813

    SHA256

    9cb32a863e5dfebc3bbfef1b82d505321e2b381eddc114172a5c6bbcab6bddd9

    SHA512

    c416be8724e53b5a3a3e8fe9c50519b6d685f5185fa273cecc9970b3cb1a3939c8e2662e21b514780e681538a582b91f75ea195cfd9d2c4583c37acd9997f3e1

  • memory/1096-7-0x0000000000900000-0x0000000000901000-memory.dmp

    Filesize

    4KB

  • memory/1600-20-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/1600-25-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/1600-24-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/1600-26-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/1600-22-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/1600-21-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/1904-16-0x00000000005E0000-0x0000000000A13000-memory.dmp

    Filesize

    4.2MB

  • memory/1904-14-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1904-13-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1904-12-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1904-11-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/1904-18-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/4224-23-0x0000000000B70000-0x0000000000B71000-memory.dmp

    Filesize

    4KB

  • memory/4688-15-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/4688-5-0x0000000000AB0000-0x0000000000AB1000-memory.dmp

    Filesize

    4KB

  • memory/4688-0-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/4688-4-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/4688-3-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/4688-2-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB

  • memory/4688-1-0x0000000013140000-0x00000000131FC000-memory.dmp

    Filesize

    752KB