Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-10-2024 18:14

General

  • Target

    58d950929edcfc0a3f1def7620d62fd0_JaffaCakes118.exe

  • Size

    676KB

  • MD5

    58d950929edcfc0a3f1def7620d62fd0

  • SHA1

    d062ad6abfc4bf4e5491b70b1200ca2ff7922904

  • SHA256

    f695eb089d4a33afab87887b5779fe39c48e13594c6b3d76e01393eb36da886c

  • SHA512

    cf23ac522ef46f3f42be5e79d36e4c189bee8a1d282fdccec12ffb97e7200fcce4f161b17030c8ea5c90d99be7926732b25f4ab25886f8a3e6466021cfec5fb4

  • SSDEEP

    12288:2QMuiMQn3i8BpVCFeKq9Ipo90lbKSpuQO2tW05l6qK8sWg4gPp73:wrBpMMKGIpu/jJ2EYl6qdgjd

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

79.172.26.136:1604

Mutex

DC_MUTEX-HN17VDB

Attributes
  • InstallPath

    System32\Drivers.exe

  • gencode

    T3NMNGnXGHkl

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Sets file to hidden 1 TTPs 2 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 5 IoCs
  • Executes dropped EXE 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 10 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 46 IoCs
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\58d950929edcfc0a3f1def7620d62fd0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\58d950929edcfc0a3f1def7620d62fd0_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Users\Admin\AppData\Local\Temp\AdlingV4.6.exe
      "C:\Users\Admin\AppData\Local\Temp\AdlingV4.6.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:232
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\AdlingV4.6.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3716
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\AdlingV4.6.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:5056
      • 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:3420
        • 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:1504
      • C:\ProgramData\Microsoft\Windows\Start Menu\System32\Drivers.exe
        "C:\ProgramData\Microsoft\Windows\Start Menu\System32\Drivers.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Windows security modification
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:648
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4032
    • C:\Users\Admin\AppData\Local\Temp\result.exe
      "C:\Users\Admin\AppData\Local\Temp\result.exe"
      2⤵
      • Checks BIOS information in registry
      • Drops startup file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2916
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\result.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\result.exe"
        3⤵
        • Checks BIOS information in registry
        • Drops startup file
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:3008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\AdlingV4.6.exe

    Filesize

    783KB

    MD5

    b8a17bdc154014be41d991204ada6d1d

    SHA1

    9853a2addc170008fccaa6ab7f38583058be3d84

    SHA256

    19477ea50733372be7440943b99e0e70c6235e0d8febffd68c37a167d6febf22

    SHA512

    9831a3b0b7afc44b131bd35c0e0162e07f706f0f0e8c0a6b1355f82817a3d5c829cf6fa313c2fccbedbc7c5ee0a16fd1c112814c4c0b51470cd003d124ca4c60

  • C:\Users\Admin\AppData\Local\Temp\result.exe

    Filesize

    35KB

    MD5

    77172f5ce035f0f19f20153fc87fc763

    SHA1

    fc33e0896c8837208b82f0671a2ec20442db17b1

    SHA256

    6e37286d49bd98a5b77a2c52940bb4df50de4debc9dc40fadc1d55a92cb476f8

    SHA512

    5f5f76267047978259458ab323d5bfc124738437e2b3bee224f5d5689d4685305f31015ea2a5f25f779db90bd9ff394d7c11f611b86779de5260c977e0ad172f

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ufr_reports\NO_PWDS_report_18-10-2024_18-14-30-5219160EABB0B8ED111923AE8277B864-BCEJ.bin

    Filesize

    1KB

    MD5

    187063cf91317fb7f49efc7e6e5861f4

    SHA1

    7e4c560b4a7bb8f9d59e6245c718ff3609f369b8

    SHA256

    4fe83e94be8f7acb8788618be34233283a566dc75a00dafd64fdae8fb615eb4a

    SHA512

    a8048d8dbb3145d070a7a493c6c2a39b612043b0399c5adaae6d4be9cf84f8627a3953ea754f19566c2b824bb4b53b67ba30fd0c04b369b5eff18c7bf02022e9

  • memory/232-48-0x0000000000400000-0x00000000004D1000-memory.dmp

    Filesize

    836KB

  • memory/232-22-0x00000000021A0000-0x00000000021A1000-memory.dmp

    Filesize

    4KB

  • memory/648-50-0x0000000000400000-0x00000000004D1000-memory.dmp

    Filesize

    836KB

  • memory/648-60-0x0000000000400000-0x00000000004D1000-memory.dmp

    Filesize

    836KB

  • memory/2916-30-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2916-21-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3008-28-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3008-49-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/3008-58-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/4032-47-0x0000000000F80000-0x0000000000F81000-memory.dmp

    Filesize

    4KB