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Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/01/2025, 21:40

General

  • Target

    JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe

  • Size

    1.4MB

  • MD5

    00251f4b9750a066a2356a874c97a144

  • SHA1

    344a70e8718b74dffc269b6208d90603be6a2f5a

  • SHA256

    71fdc7cf1ac6d15a985b9ec15ee9ee37f7f6ecbd6e1464788801ed54c12af069

  • SHA512

    05550170ee32cf77e1bf8a820ba3398a7ef15203eae740bca47e690607c29ad70d49fbca65369dcfa8f175f046a4fe493b860e8c600b54a65f3b6164bd9a53c6

  • SSDEEP

    24576:LfgYPj74z2zUFAiPdxu3krTjwecrMNjdZKxcs/zuHCswJT0b5HLasIRw:/74z2zMA47jweldZsJW5ruRw

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.174.129:1

Mutex

DC_MUTEX-20C3W1H

Attributes
  • InstallPath

    msdcsc.exe

  • gencode

    3JKJQw7kEnaK

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Identifies Wine through registry keys 2 TTPs 2 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Loads dropped DLL 2 IoCs
  • Themida packer 29 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_00251f4b9750a066a2356a874c97a144.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Identifies Wine through registry keys
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Users\Admin\Desktop\msdcsc.exe
      "C:\Users\Admin\Desktop\msdcsc.exe"
      2⤵
      • Executes dropped EXE
      • Identifies Wine through registry keys
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2600

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Desktop\msdcsc.exe

    Filesize

    1.4MB

    MD5

    00251f4b9750a066a2356a874c97a144

    SHA1

    344a70e8718b74dffc269b6208d90603be6a2f5a

    SHA256

    71fdc7cf1ac6d15a985b9ec15ee9ee37f7f6ecbd6e1464788801ed54c12af069

    SHA512

    05550170ee32cf77e1bf8a820ba3398a7ef15203eae740bca47e690607c29ad70d49fbca65369dcfa8f175f046a4fe493b860e8c600b54a65f3b6164bd9a53c6

  • memory/2240-21-0x0000000000401000-0x00000000004B0000-memory.dmp

    Filesize

    700KB

  • memory/2240-2-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2240-3-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2240-1-0x0000000000401000-0x00000000004B0000-memory.dmp

    Filesize

    700KB

  • memory/2240-5-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2240-4-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2240-0-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2240-18-0x0000000005B20000-0x0000000005C8E000-memory.dmp

    Filesize

    1.4MB

  • memory/2240-17-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2240-16-0x0000000005B20000-0x0000000005C8E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-27-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-33-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-24-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-25-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-26-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-20-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-28-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-30-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-29-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-31-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-32-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-23-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-34-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-35-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-36-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-37-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-38-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-39-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-40-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-41-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-42-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB

  • memory/2600-43-0x0000000000400000-0x000000000056E000-memory.dmp

    Filesize

    1.4MB