Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    12-12-2024 16:59

General

  • Target

    e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe

  • Size

    2.0MB

  • MD5

    e761ad70be62309281d1edf463e8c0e4

  • SHA1

    6003a7704f131074cb9a8162c4cfdf979ce5be8f

  • SHA256

    343aaf3307a88ac8be9ebc8a3562905d7c34e3dadc477d7557b00f06c3904e7c

  • SHA512

    068bed4b6e6b7ef8a5f9ba596b18f5f3a76949961e9994e488109fe2266ddcf831240f72f510bf98cbc38653584c8682ed272cd72819bd714dd947727e0707c7

  • SSDEEP

    49152:1rLsrRotIig7rLaKXrrf7mX8rptlyXFwtAamqRkWvazk:1rGL3LZPaXwt6ExAFzk

Malware Config

Extracted

Family

darkcomet

Botnet

JDB

C2

wonanwad.no-ip.biz:1604

Mutex

DCMIN_MUTEX-6X4A2HS

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    NMt8acKfFNq0

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    DarkComet RAT

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 19 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2976
      • C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2640
        • C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe
          "C:\Users\Admin\AppData\Local\Temp\e761ad70be62309281d1edf463e8c0e4_JaffaCakes118.exe"
          4⤵
          • 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:2812
          • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
            "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1932
            • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
              "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Adds Run key to start application
              • Suspicious use of SetThreadContext
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:2620
              • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
                "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                PID:3064
              • C:\Users\Admin\AppData\Local\Temp\BS.exe
                "C:\Users\Admin\AppData\Local\Temp\BS.exe"
                7⤵
                • Executes dropped EXE
                • System Location Discovery: System Language Discovery
                PID:2532
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\system32\rundll32.exe C:\Windows\system32\gameux.dll,GameUXShim {868c988d-ecf6-40cd-b1ab-8c5f0607dd95};C:\Users\Admin\AppData\Local\Temp\BS.exe;2532
                  8⤵
                  • System Location Discovery: System Language Discovery
                  PID:2796
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 2532 -s 260
                  8⤵
                  • Loads dropped DLL
                  • Program crash
                  PID:2288
        • C:\Users\Admin\AppData\Local\Temp\BS.exe
          "C:\Users\Admin\AppData\Local\Temp\BS.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1408
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\system32\rundll32.exe C:\Windows\system32\gameux.dll,GameUXShim {868c988d-ecf6-40cd-b1ab-8c5f0607dd95};C:\Users\Admin\AppData\Local\Temp\BS.exe;1408
            5⤵
            • Blocklisted process makes network request
            • System Location Discovery: System Language Discovery
            • Modifies registry class
            PID:2576
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 1408 -s 260
            5⤵
            • Loads dropped DLL
            • Program crash
            PID:1712

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

    Filesize

    2.0MB

    MD5

    e761ad70be62309281d1edf463e8c0e4

    SHA1

    6003a7704f131074cb9a8162c4cfdf979ce5be8f

    SHA256

    343aaf3307a88ac8be9ebc8a3562905d7c34e3dadc477d7557b00f06c3904e7c

    SHA512

    068bed4b6e6b7ef8a5f9ba596b18f5f3a76949961e9994e488109fe2266ddcf831240f72f510bf98cbc38653584c8682ed272cd72819bd714dd947727e0707c7

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

    Filesize

    1.1MB

    MD5

    1b86d2f35d809aaf46f61422db2347e5

    SHA1

    a22dd1923e062ccc254cb954ead83f4a2aeec8bb

    SHA256

    6a9ee948c23523392aa357598582eb173506ecfffe92c0524a666ca026814735

    SHA512

    f6626d2f913e8bfbf1de7827f1661374d228c7106624089d29bcba16c41ca0271c0ccc88073fc1898593dd67155d7b276a35cbec35703e4f944abff5cbaadbdc

  • memory/2620-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2640-45-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-10-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-8-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2640-5-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-4-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-11-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-2-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-0-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-1-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2640-3-0x0000000000400000-0x00000000005D1000-memory.dmp

    Filesize

    1.8MB

  • memory/2812-18-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-33-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-22-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-34-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-16-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-24-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-30-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-20-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-36-0x0000000000100000-0x0000000000101000-memory.dmp

    Filesize

    4KB

  • memory/2812-35-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-14-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-12-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-26-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/2812-97-0x0000000000400000-0x00000000004B2000-memory.dmp

    Filesize

    712KB

  • memory/3064-87-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB