Analysis

  • max time kernel
    96s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2024 12:22

General

  • Target

    7c628b63e00fdfb7cf03f79411deeeea_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    7c628b63e00fdfb7cf03f79411deeeea

  • SHA1

    a60b798e860fa4c4aa8a43474b86b3f01969ba79

  • SHA256

    4c308a8c665839ea491089cd987ab93a6c09ad9eb6561116776d635b660da101

  • SHA512

    960b1634bf9227c753590f7c2042ae68d9e3eec2ce7722ff74ee257dccbc7da28092e4ea74af6a08790775ef6514436435e12ea4bcda173e08e25b83eca46b43

  • SSDEEP

    12288:B1Eu4AZ+EOJTSNT8JpclOVgvcWS2LgHtJpXMKI1jdT5yRVhJUzIwX5+9NB8GYbnu:t0GMG15eisLl74ZYS+/VRZ

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

darkcoder.no-ip.biz:1604

Mutex

DC_MUTEX-L3VAPKR

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    SSMFGEWonDEN

  • 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
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 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 3 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 24 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c628b63e00fdfb7cf03f79411deeeea_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7c628b63e00fdfb7cf03f79411deeeea_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1996
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\svchost.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:4880
      • 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:5092

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1.1MB

    MD5

    d881de17aa8f2e2c08cbb7b265f928f9

    SHA1

    08936aebc87decf0af6e8eada191062b5e65ac2a

    SHA256

    b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

    SHA512

    5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

  • memory/1996-0-0x0000000074B62000-0x0000000074B63000-memory.dmp

    Filesize

    4KB

  • memory/1996-1-0x0000000074B60000-0x0000000075111000-memory.dmp

    Filesize

    5.7MB

  • memory/1996-2-0x0000000074B60000-0x0000000075111000-memory.dmp

    Filesize

    5.7MB

  • memory/1996-11-0x0000000074B60000-0x0000000075111000-memory.dmp

    Filesize

    5.7MB

  • memory/4880-5-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/4880-8-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/4880-10-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/4880-13-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB

  • memory/4880-14-0x00000000025D0000-0x00000000025D1000-memory.dmp

    Filesize

    4KB

  • memory/4880-26-0x0000000000400000-0x00000000004CD000-memory.dmp

    Filesize

    820KB