Analysis

  • max time kernel
    122s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    01-08-2024 04:21

General

  • Target

    7f2761a751bb3205b4b82ac40c62475b_JaffaCakes118.exe

  • Size

    1013KB

  • MD5

    7f2761a751bb3205b4b82ac40c62475b

  • SHA1

    bf7b8b6a7dafcd506885baf5346295fa742115ef

  • SHA256

    52b8d8b83d4fb0a23c947c9f76b2a205b6e9d4338a74eb07ecf29b2fa6289161

  • SHA512

    a94e29620be16f6e3bbc6bea9cbdbb53568c8a8470c3bfc40b823cb299fc193300ccad046d6b38a45a665e240843f811d77adb2f2513bbe617aa4bd214a33789

  • SSDEEP

    12288:y1Eu4AZ+EOJTSNT8JpclOVgvcWS2LgHtJpXMKI1jdT5yRVhJUzIwX5+9NB8GYbn3:k0GMG15eisLl74ZYS+/VRZ

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

hmmm1.no-ip.biz:1452

Mutex

DC_MUTEX-RF11TVS

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    s8N4R8Mo0z2b

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • 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
  • 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 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 23 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7f2761a751bb3205b4b82ac40c62475b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7f2761a751bb3205b4b82ac40c62475b_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2804
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.exe
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2740
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2784
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Users\Admin\AppData\Local\Temp\svchost.exe" +s +h
          4⤵
          • Sets file to hidden
          • System Location Discovery: System Language Discovery
          • Views/modifies file attributes
          PID:2656
      • 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:1072
        • 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:2704
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2636

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1.1MB

    MD5

    34aa912defa18c2c129f1e09d75c1d7e

    SHA1

    9c3046324657505a30ecd9b1fdb46c05bde7d470

    SHA256

    6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

    SHA512

    d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

  • memory/2740-27-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-9-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-21-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-19-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-30-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2740-28-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-7-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-39-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-13-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-25-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-17-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-15-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2740-12-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2804-29-0x0000000073E00000-0x00000000743AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2804-1-0x0000000073E00000-0x00000000743AB000-memory.dmp

    Filesize

    5.7MB

  • memory/2804-0-0x0000000073E01000-0x0000000073E02000-memory.dmp

    Filesize

    4KB

  • memory/2804-2-0x0000000073E00000-0x00000000743AB000-memory.dmp

    Filesize

    5.7MB