Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    28/03/2025, 16:37

General

  • Target

    JaffaCakes118_8ad729b2555724910616233931ad7949.exe

  • Size

    1.0MB

  • MD5

    8ad729b2555724910616233931ad7949

  • SHA1

    1e324fbe98fedf92c459e74675cfccd943a95f32

  • SHA256

    1c51fa06439b97b06dd793b6ffa378672233047008f7a92b75b85a4dbf7d1c64

  • SHA512

    3078a06641cd0e1b954d4105da844d3158010c077ed31a820945e0d1d1cf0e4afd7ebe5842187204532107a5ead7811f71abcc37fec18efb0c86f94a15cfbfed

  • SSDEEP

    12288:uYpo/eUYOI4L2aZHZp7Ol8Oi1KxVwWnN1L2wvFt4MQzQ4WD9isjgk0cE3ZjpTANS:LK20R/A4m97sxgUdz3pZzfBpQyp5mi

Malware Config

Extracted

Family

darkcomet

Botnet

Infected

C2

486.no-ip.info:3070

Mutex

DC_MUTEX-9366JHV

Attributes
  • InstallPath

    Winupd\winupd.exe

  • gencode

    g�9XqzgXExMy

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    windows Update

rc4.plain

Extracted

Family

darkcomet

Attributes
  • gencode

  • install

    false

  • offline_keylogger

    false

  • persistence

    false

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ad729b2555724910616233931ad7949.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8ad729b2555724910616233931ad7949.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1484
    • C:\Users\Admin\AppData\Local\Temp\vbc.exe
      C:\Users\Admin\AppData\Local\Temp\vbc.exe
      2⤵
      • Executes dropped EXE
      PID:1652

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\vbc.exe

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • memory/1484-0-0x0000000074C41000-0x0000000074C42000-memory.dmp

    Filesize

    4KB

  • memory/1484-1-0x0000000074C40000-0x00000000751EB000-memory.dmp

    Filesize

    5.7MB

  • memory/1484-2-0x0000000074C40000-0x00000000751EB000-memory.dmp

    Filesize

    5.7MB

  • memory/1484-33-0x0000000074C40000-0x00000000751EB000-memory.dmp

    Filesize

    5.7MB

  • memory/1652-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1652-27-0x0000000000010000-0x0000000000011000-memory.dmp

    Filesize

    4KB

  • memory/1652-25-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-31-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-21-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-19-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-17-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-15-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-11-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-9-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-13-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB

  • memory/1652-7-0x0000000000400000-0x00000000004B3000-memory.dmp

    Filesize

    716KB