Analysis

  • max time kernel
    150s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    03-01-2025 05:37

General

  • Target

    JaffaCakes118_6a89835db18e4e20978b80beaadfe910.exe

  • Size

    662KB

  • MD5

    6a89835db18e4e20978b80beaadfe910

  • SHA1

    e3ffa312c2e0457c821433507f546f91603de41a

  • SHA256

    8d7f410cf32ef0aa06537afc156b6cff821d6fe6422fe68b87491890f64d2aa0

  • SHA512

    51dac9306c1099cbef45baf8b5327d0c89c5658ed7e5b5641d300cba2411eddc05aad4681a2f1a1e61cb6fb0bba4d1566c841293d4665078bc3a7085fbb4af36

  • SSDEEP

    12288:I3OpvNW4a76S/Ddon/m09bbYlIaaMcE2YGhq3vo1RnfAvIESJgoE26yc/RS:+OA4aWNn/m09fKIaaBEtWq3A1Ov8Jgb0

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

developer.ddns.net:2000

sandboxie.ddns.net:2000

Mutex

DC_MUTEX-2LAF0SP

Attributes
  • InstallPath

    MSDCSC\Explorer.exe

  • gencode

    fQ0AYHK27MkE

  • install

    true

  • offline_keylogger

    true

  • password

    0123456789

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 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 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 45 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a89835db18e4e20978b80beaadfe910.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a89835db18e4e20978b80beaadfe910.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Windows\SysWOW64\notepad.exe
      notepad
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:1476
    • C:\Users\Admin\Favorites\MSDCSC\Explorer.exe
      "C:\Users\Admin\Favorites\MSDCSC\Explorer.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2240
      • C:\Windows\SysWOW64\notepad.exe
        notepad
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\Favorites\MSDCSC\Explorer.exe

    Filesize

    662KB

    MD5

    6a89835db18e4e20978b80beaadfe910

    SHA1

    e3ffa312c2e0457c821433507f546f91603de41a

    SHA256

    8d7f410cf32ef0aa06537afc156b6cff821d6fe6422fe68b87491890f64d2aa0

    SHA512

    51dac9306c1099cbef45baf8b5327d0c89c5658ed7e5b5641d300cba2411eddc05aad4681a2f1a1e61cb6fb0bba4d1566c841293d4665078bc3a7085fbb4af36

  • memory/1464-62-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/1464-0-0x00000000004C0000-0x00000000004C1000-memory.dmp

    Filesize

    4KB

  • memory/1476-4-0x00000000000C0000-0x00000000000C1000-memory.dmp

    Filesize

    4KB

  • memory/1476-23-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/1976-61-0x0000000000240000-0x0000000000241000-memory.dmp

    Filesize

    4KB

  • memory/2240-67-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-70-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-65-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-66-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-32-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/2240-68-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-69-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-64-0x0000000000290000-0x0000000000291000-memory.dmp

    Filesize

    4KB

  • memory/2240-71-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-72-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-73-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-74-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-75-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-76-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2240-77-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB