Analysis

  • max time kernel
    149s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02-01-2025 06:20

General

  • Target

    JaffaCakes118_632f28fdf1de3a1e531b830e5610c12f.exe

  • Size

    978KB

  • MD5

    632f28fdf1de3a1e531b830e5610c12f

  • SHA1

    05e76ccae3e599787869494007da82b398e6e7e4

  • SHA256

    ef90da3561d7571e14882aa13fbe3f4e35f0883f5570fbb0f7b6e7e62e94ab72

  • SHA512

    f5bdece4c8a2c06a6d5377a7a46f1574a51f69c96dfd636bf650673af1af21836526ed6fc3b615e28eff64622af20f86e7aded31a9d1242a411903e66948cb18

  • SSDEEP

    12288:Fw17csJbGOxU1bidOWH0VFzFpDYcvttrBt/SFZyXBR1ls/iMdDFcqm/vZwEVn:E7cm+1bidZepDYclVUoX1iaMdRepZ

Malware Config

Extracted

Family

darkcomet

Botnet

DarkRatZ

C2

serverofrats.no-ip.biz:200

Mutex

DC_MUTEX-ECB76MB

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    n9NGEAUG1eMJ

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    rundll32

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 1 IoCs
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Windows security modification 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_632f28fdf1de3a1e531b830e5610c12f.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_632f28fdf1de3a1e531b830e5610c12f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1704
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_632f28fdf1de3a1e531b830e5610c12f.exe
      2⤵
      • 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:2092
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_632f28fdf1de3a1e531b830e5610c12f.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2712
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_632f28fdf1de3a1e531b830e5610c12f.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2876
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:856
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2888
      • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
        "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2820
        • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
          4⤵
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2832
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

    Filesize

    978KB

    MD5

    632f28fdf1de3a1e531b830e5610c12f

    SHA1

    05e76ccae3e599787869494007da82b398e6e7e4

    SHA256

    ef90da3561d7571e14882aa13fbe3f4e35f0883f5570fbb0f7b6e7e62e94ab72

    SHA512

    f5bdece4c8a2c06a6d5377a7a46f1574a51f69c96dfd636bf650673af1af21836526ed6fc3b615e28eff64622af20f86e7aded31a9d1242a411903e66948cb18

  • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-4177215427-74451935-3209572229-1000\699c4b9cdebca7aaea5193cae8a50098_bf99bef1-312f-4726-8597-70228ef05e99

    Filesize

    50B

    MD5

    5b63d4dd8c04c88c0e30e494ec6a609a

    SHA1

    884d5a8bdc25fe794dc22ef9518009dcf0069d09

    SHA256

    4d93c22555b3169e5c13716ca59b8b22892c69b3025aea841afe5259698102fd

    SHA512

    15ff8551ac6b9de978050569bcdc26f44dfc06a0eaf445ac70fd45453a21bdafa3e4c8b4857d6a1c3226f4102a639682bdfb71d7b255062fb81a51c9126896cb

  • memory/2092-10-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-24-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-11-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-3-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-7-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-21-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2092-17-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-23-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-13-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-22-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-25-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-15-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-5-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2092-107-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2608-64-0x0000000000080000-0x0000000000081000-memory.dmp

    Filesize

    4KB

  • memory/2832-62-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2832-63-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB