Analysis

  • max time kernel
    129s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 03:56

General

  • Target

    dce78c1bc01875e17e404720fd1c252d_JaffaCakes118.exe

  • Size

    659KB

  • MD5

    dce78c1bc01875e17e404720fd1c252d

  • SHA1

    5e2a78a3ca1c8a01d1abe467df5cbea0c73e3a68

  • SHA256

    5a41df08f0a1e554c8a54ad710ea35d806399b2bd38700845837745ba2b8baf3

  • SHA512

    8ffb84873a1e90cc037284028dfc8a99194eeccd410c3c598f8a9d874fb4eaa5e14cd5628a78155fdadc8b46351aaec1d8a5493209416b3411052a81dc72c36c

  • SSDEEP

    12288:59AFlAd0Z+89cxTGzO4AucTD8QP2lmFSrVs9LqnKO:/AQ6Zx9cxTmOrucTIEFSpOGn

Malware Config

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Windows security bypass 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 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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 use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dce78c1bc01875e17e404720fd1c252d_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dce78c1bc01875e17e404720fd1c252d_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks BIOS information in registry
    • Adds Run key to start application
    • Drops file in System32 directory
    • 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:1468
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4220
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4220 -s 196
        3⤵
        • Program crash
        PID:3716
    • C:\Windows\SysWOW64\explorer.exe
      "C:\Windows\SysWOW64\explorer.exe"
      2⤵
      • Modifies firewall policy service
      • Windows security bypass
      • Checks BIOS information in registry
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2928
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4220 -ip 4220
    1⤵
      PID:5060

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1468-0-0x00000000021D0000-0x00000000021D1000-memory.dmp

      Filesize

      4KB

    • memory/1468-9-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/2928-4-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/2928-5-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/2928-6-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/2928-7-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/2928-8-0x00000000026F0000-0x00000000026F1000-memory.dmp

      Filesize

      4KB

    • memory/2928-12-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/2928-10-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/2928-11-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/2928-14-0x0000000013140000-0x00000000131F6000-memory.dmp

      Filesize

      728KB

    • memory/4220-2-0x0000000000F40000-0x0000000000F41000-memory.dmp

      Filesize

      4KB