Overview

overview

10

Static

static

5

dc1c009149...18.exe

windows7-x64

10

dc1c009149...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 00:02

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General

  • Target

    dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe

  • Size

    1.1MB

  • MD5

    dc1c009149df32f04373b3519dfdbc8b

  • SHA1

    aef5fd7a3cd4351d96c53f4bece6a0cdf7835029

  • SHA256

    619ccf5b3f6fe85d1887645e84ff4d480c7f53a0903a00fee2b6a4a3cd46a458

  • SHA512

    1ec3919720658c495ead64f44f1eda2f666216f664cbad60890be18746b1426b242691d726ee51de6b48142e61945d148c21334453b23646ead33b2a482828d0

  • SSDEEP

    12288:DaWzgMg7v3qnCiMErQohh0F4CCJ8lnyC8idoH8DVqlXueHrvNI8qNHiUXdWTJAAT:maHMv6CorjqnyC8klDuHbNInHRC2WhZ

Score
10/10
darkcometguest16discoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

darktestsh123.no-ip.info:1604

Mutex

DC_MUTEX-XCY52F9

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    7U95T83DNYtl

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

Signatures

  • Darkcomet

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

    trojanratdarkcomet
  • Darkcomet family
    darkcomet
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 3 TTPs 3 IoCs
    evasion
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs 2 IoCs
    evasiontrojan
  • Disables RegEdit via registry modification 1 IoCs
    evasion
  • Disables Task Manager via registry modification
    evasion
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Windows security modification 2 TTPs 2 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 3 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.

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4844
    • C:\Users\Admin\AppData\Local\Temp\uncrypted.exe
      "C:\Users\Admin\AppData\Local\Temp\uncrypted.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
        "C:\Windows\system32\MSDCSC\msdcsc.exe"
        3⤵
        • Modifies firewall policy service
        • Modifies security service
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Windows security modification
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:624
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          4⤵
            PID:4600
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            4⤵
              PID:888

      Network

      MITRE ATT&CK Enterprise v15

      Reconnaissance

      Resource Development

      Initial Access

      Execution

      Persistence

      Boot or Logon Autostart Execution

      2
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Winlogon Helper DLL

      1
      T1547.004

      Create or Modify System Process

      2
      T1543

      Windows Service

      2
      T1543.003

      Privilege Escalation

      Boot or Logon Autostart Execution

      2
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Winlogon Helper DLL

      1
      T1547.004

      Create or Modify System Process

      2
      T1543

      Windows Service

      2
      T1543.003

      Defense Evasion

      Impair Defenses

      3
      T1562

      Disable or Modify System Firewall

      1
      T1562.004

      Disable or Modify Tools

      2
      T1562.001

      Modify Registry

      6
      T1112

      Credential Access

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      2
      T1082

      System Location Discovery

      1
      T1614

      System Language Discovery

      1
      T1614.001

      Lateral Movement

      Collection

      Command and Control

      Exfiltration

      Impact

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\aut596A.tmp
        Filesize

        332KB

        MD5

        9b826fe60458bdfe801f3807d2f4219f

        SHA1

        b490ede17dd208a9f41fe767d61f7656060f5508

        SHA256

        e59fa9838cdde40d5845d0ac89e5bdb51ad3b3c74d9c27d5fbc8fa14d57384ff

        SHA512

        07d80533c7b588a2861aa7f77d87d78b488c9bb73837b0c36e1f25caad3bac0a51c1e29bd7ebbf5ba5b11989fb410a4c0a7c15845f358f116ff68083a932f32a

        Download Submit

      • C:\Users\Admin\AppData\Local\Temp\uncrypted.exe
        Filesize

        332KB

        MD5

        f5b507d793a1f07b1735f57118943ec0

        SHA1

        27cba0b7895c3e8a1f22fa4954b526885e47e205

        SHA256

        49ed71b6c346046d05b4a636539118456e3a07f2beaa645d418ffe71db590a23

        SHA512

        e2d1e881a9f4fd4a1092ff75646de3c1c87bdfb2f75a2e0246f058d855dcedf378018b2e1535e523841f594209de73a98bfb7a1ff74d4b696e9a0db0ebc10672

        Download Submit

      • memory/624-92-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-88-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-97-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-96-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-83-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-84-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-85-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-86-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-87-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-95-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-89-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-90-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-91-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-94-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/624-93-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/2024-20-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/2024-82-0x0000000000400000-0x00000000004E6000-memory.dmp

        Filesize

        920KB

        Download

      • memory/2024-21-0x0000000002530000-0x0000000002531000-memory.dmp

        Filesize

        4KB

        Download

      • memory/4844-0-0x0000000000400000-0x00000000004D5000-memory.dmp

        Filesize

        852KB

        Download