Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2024 13:31

General

  • Target

    eb6f77a1338144f6c63a55ed5e8a79c0_JaffaCakes118.exe

  • Size

    810KB

  • MD5

    eb6f77a1338144f6c63a55ed5e8a79c0

  • SHA1

    eb3fd0679186ee458f24af93e95ccd5f504c559b

  • SHA256

    3390ed4ef3a99e04b9eff52e787a72fa1e9afb59eb93895344b577461d373e25

  • SHA512

    032dcd5ee33f9e67c9963b2a374116a0ad8191cce0fb750e9f9e73ff98dd34fa71351e7a0e99ab57e45a57ea15aa130e3bd0f2f696593ceed0d5931d466401f3

  • SSDEEP

    24576:xWwHivRnJlg5ngEn2kHj+Z0BW2/7nRn1Bk:xWwmRnJl+gEnVjwiZk

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

127.0.0.1:1604

Mutex

DCMIN_MUTEX-H44XS6F

Attributes
  • InstallPath

    DCSCMIN\IMDCSC.exe

  • gencode

    fZMsDSKWmpXJ

  • 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.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 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 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb6f77a1338144f6c63a55ed5e8a79c0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eb6f77a1338144f6c63a55ed5e8a79c0_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2792
    • C:\Users\Admin\AppData\Local\Temp\Crypted.exe
      "C:\Users\Admin\AppData\Local\Temp\Crypted.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:2200
      • C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
        "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    660KB

    MD5

    1513b3dead4e9eb7a80a518b60eee0f1

    SHA1

    a6d08a86c32fabdc4d4ddd3c58d714aed6a71e80

    SHA256

    4cb7202759c7c58f632320ccc862d4a8e158c6c1b05de7a2ba6e322ee2a9645f

    SHA512

    b7a0606e41d9476c734cd2492bea3810a5fcdd14bce6fc3951dd86e10dc58c5c052049924087d87a12abcc23f8e5c4fa4bbff05697a24234ecd36635f64490e9

  • memory/2200-13-0x0000000000260000-0x0000000000261000-memory.dmp

    Filesize

    4KB

  • memory/2200-24-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2384-25-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2384-31-0x0000000000400000-0x00000000004B5000-memory.dmp

    Filesize

    724KB

  • memory/2792-0-0x00000000747DE000-0x00000000747DF000-memory.dmp

    Filesize

    4KB

  • memory/2792-1-0x0000000000050000-0x000000000007E000-memory.dmp

    Filesize

    184KB

  • memory/2792-2-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB

  • memory/2792-12-0x00000000747D0000-0x0000000074EBE000-memory.dmp

    Filesize

    6.9MB