Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    01-12-2024 23:57

General

  • Target

    AwekKolej.exe

  • Size

    738KB

  • MD5

    959550946f0ebb35807317408542123c

  • SHA1

    65b8386c5c80b7443fc89b11cc4468400f7abcf2

  • SHA256

    7ee14508476758f0d36ea8aaf22eab55eaffff6ea68291d62b98e775a499e781

  • SHA512

    b8707f0577be0225d571a2a58be40085244264288728d84bf857cf37ebadf24730558904ee2c90bda6b52733a2cc9a1f8878c652ab50fc35c6d345e4bd3cbf30

  • SSDEEP

    12288:t5O2GoRvcRfUP04kWliJTzgoRdyfV1jKRo2M2zzqipI3FTElC1aiNchvhznP08q:tzfKMPfk5JTkaMfV4Ro23aiSBEs8iNQ2

Malware Config

Extracted

Family

darkcomet

Botnet

BOOMZBM

C2

encikhebat.no-ip.org:1604

Mutex

DC_MUTEX-EGU145C

Attributes
  • InstallPath

    MSDCSC\s3rvic3s.exe

  • gencode

    aR6wNaMTzLyE

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    Services

Signatures

  • Darkcomet

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

  • Darkcomet family
  • 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
  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 4 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
  • System policy modification 1 TTPs 3 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AwekKolej.exe
    "C:\Users\Admin\AppData\Local\Temp\AwekKolej.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2096
    • C:\Users\Admin\AppData\Local\Temp\AwekKolej.exe
      "C:\Users\Admin\AppData\Local\Temp\AwekKolej.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2016
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\AwekKolej.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2192
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\AwekKolej.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2868
      • 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:1996
        • 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:\Windows\SysWOW64\MSDCSC\s3rvic3s.exe
        "C:\Windows\system32\MSDCSC\s3rvic3s.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3000
        • C:\Windows\SysWOW64\MSDCSC\s3rvic3s.exe
          "C:\Windows\SysWOW64\MSDCSC\s3rvic3s.exe"
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • 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
          • System policy modification
          PID:2312
          • C:\Windows\SysWOW64\notepad.exe
            notepad
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Windows\SysWOW64\MSDCSC\s3rvic3s.exe

    Filesize

    738KB

    MD5

    959550946f0ebb35807317408542123c

    SHA1

    65b8386c5c80b7443fc89b11cc4468400f7abcf2

    SHA256

    7ee14508476758f0d36ea8aaf22eab55eaffff6ea68291d62b98e775a499e781

    SHA512

    b8707f0577be0225d571a2a58be40085244264288728d84bf857cf37ebadf24730558904ee2c90bda6b52733a2cc9a1f8878c652ab50fc35c6d345e4bd3cbf30

  • memory/2016-7-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-15-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-4-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-16-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-10-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-9-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-8-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-2-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-98-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-14-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2016-17-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-18-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-11-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2016-6-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2312-54-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2312-53-0x0000000000400000-0x00000000004BA000-memory.dmp

    Filesize

    744KB

  • memory/2604-55-0x00000000000C0000-0x00000000000C1000-memory.dmp

    Filesize

    4KB