Analysis

  • max time kernel
    141s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    11/02/2025, 20:50

General

  • Target

    JaffaCakes118_ea271405c5d515469356a082f5a16dd6.exe

  • Size

    891KB

  • MD5

    ea271405c5d515469356a082f5a16dd6

  • SHA1

    bf2b2451d4d8e656067c81cf14362b9702ed7a57

  • SHA256

    91a04cda5888aa5c4e0e8cdd09d5576836d3714c39446a510ddb7f88ae372ae4

  • SHA512

    dc3c5ea202e4e311cbc35dc8d53b616bf657de01d91da9ce0e92ed39616424b3002035e41fe915791ba53f9b8822ea2c9100b22777ea0a4dac438be71a283440

  • SSDEEP

    24576:kKtgTB/3lPQZLh9h5qKUpEZl8fCjDS/2V0cs3:TAB/gLhw/ajDo2V0cK

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

mylovely.zapto.org:1604

Mutex

DC_MUTEX-FJ778YZ

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    ohg$v1#/-qld

  • install

    true

  • offline_keylogger

    true

  • persistence

    false

  • reg_key

    MicrosoftUpdate

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 3 IoCs
  • Modifies security service 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Windows security modification 2 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 19 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 46 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea271405c5d515469356a082f5a16dd6.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea271405c5d515469356a082f5a16dd6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea271405c5d515469356a082f5a16dd6.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea271405c5d515469356a082f5a16dd6.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Loads dropped DLL
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2704
      • C:\Users\Admin\AppData\Local\Temp\FACEBOOK.EXE
        "C:\Users\Admin\AppData\Local\Temp\FACEBOOK.EXE"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:2680
      • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
        "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2564
        • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
          "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • Windows security bypass
          • Executes dropped EXE
          • Windows security modification
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2196
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:2876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-3063565911-2056067323-3330884624-1000\699c4b9cdebca7aaea5193cae8a50098_de87a6d6-9d44-4942-9ec6-2be31b435411

    Filesize

    50B

    MD5

    5b63d4dd8c04c88c0e30e494ec6a609a

    SHA1

    884d5a8bdc25fe794dc22ef9518009dcf0069d09

    SHA256

    4d93c22555b3169e5c13716ca59b8b22892c69b3025aea841afe5259698102fd

    SHA512

    15ff8551ac6b9de978050569bcdc26f44dfc06a0eaf445ac70fd45453a21bdafa3e4c8b4857d6a1c3226f4102a639682bdfb71d7b255062fb81a51c9126896cb

  • C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

    Filesize

    891KB

    MD5

    ea271405c5d515469356a082f5a16dd6

    SHA1

    bf2b2451d4d8e656067c81cf14362b9702ed7a57

    SHA256

    91a04cda5888aa5c4e0e8cdd09d5576836d3714c39446a510ddb7f88ae372ae4

    SHA512

    dc3c5ea202e4e311cbc35dc8d53b616bf657de01d91da9ce0e92ed39616424b3002035e41fe915791ba53f9b8822ea2c9100b22777ea0a4dac438be71a283440

  • \Users\Admin\AppData\Local\Temp\FACEBOOK.EXE

    Filesize

    409KB

    MD5

    a376b12add1f0341b8eb607994171a8d

    SHA1

    833518195776950b175cf681de819a249a5142a6

    SHA256

    c1bb4bbdca067c0419c4f1ddf1ef48b77dc4c8221d6fc6c3dcc1921b4d02299e

    SHA512

    4445fff21b4bae2dc56293b14ef55769423afab59eecc91b77ae05f17d87335eee41ffcad4bbfc71f7e47de4ff839b1e80e52c8d9554eb5dd110a33cc24a1b63

  • memory/2196-73-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2196-68-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2196-60-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2196-58-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2196-59-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2196-61-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2436-13-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2436-0-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2564-63-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB

  • memory/2680-29-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2680-74-0x0000000000400000-0x00000000004C1000-memory.dmp

    Filesize

    772KB

  • memory/2704-4-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-6-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-17-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-42-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-41-0x0000000003790000-0x00000000037EB000-memory.dmp

    Filesize

    364KB

  • memory/2704-39-0x0000000003790000-0x00000000037EB000-memory.dmp

    Filesize

    364KB

  • memory/2704-28-0x0000000003790000-0x0000000003851000-memory.dmp

    Filesize

    772KB

  • memory/2704-16-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2704-19-0x0000000000280000-0x0000000000281000-memory.dmp

    Filesize

    4KB

  • memory/2704-7-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-15-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-14-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-11-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2704-18-0x0000000000400000-0x000000000054C000-memory.dmp

    Filesize

    1.3MB

  • memory/2876-69-0x0000000000400000-0x000000000045B000-memory.dmp

    Filesize

    364KB