Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/02/2025, 04:44

General

  • Target

    JaffaCakes118_2acc16a150393bae22055e5612e71af1.exe

  • Size

    860KB

  • MD5

    2acc16a150393bae22055e5612e71af1

  • SHA1

    415a1a0d792e744b571e8f4488d8620116f3a4ea

  • SHA256

    835a841e88d2e1271dd94e02f014328ff3dbceb824f7b2a28d8709272ef182b8

  • SHA512

    f49c4d2c595888964d7ef9244cca7f87b83541555480ae9352130dc27aa035ecc9cbf8eacfa4af24ce6f87c72762ef73f4e47f5a0a4bc971f9bd21195f29ba69

  • SSDEEP

    12288:sIyIhUEmz1nd7LSTlAsWddjkJDtMRVvhKCZxXG7BCg7ad5SuHH3gQvpoT:FyI4z1n4jWddUyQCZFKCg7advQQvpE

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-7V86XEW

Attributes
  • gencode

    U5iDg=G4u8bS

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 2 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.

  • Suspicious use of AdjustPrivilegeToken 24 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2acc16a150393bae22055e5612e71af1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2acc16a150393bae22055e5612e71af1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:928
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2acc16a150393bae22055e5612e71af1.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2acc16a150393bae22055e5612e71af1.exe"
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:64
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2acc16a150393bae22055e5612e71af1.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2acc16a150393bae22055e5612e71af1.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/64-11-0x0000000000400000-0x00000000004AE000-memory.dmp

    Filesize

    696KB

  • memory/64-4-0x0000000000400000-0x00000000004AE000-memory.dmp

    Filesize

    696KB

  • memory/64-2-0x0000000000400000-0x00000000004AE000-memory.dmp

    Filesize

    696KB

  • memory/2340-16-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-15-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-12-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-13-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-14-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-8-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-17-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-7-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-18-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-20-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-22-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-24-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-27-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-28-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB

  • memory/2340-29-0x0000000000400000-0x00000000004AF000-memory.dmp

    Filesize

    700KB