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Analysis

  • max time kernel
    93s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2025, 02:37

General

  • Target

    JaffaCakes118_092362ef67e69075208c724ae99293e7.exe

  • Size

    1.8MB

  • MD5

    092362ef67e69075208c724ae99293e7

  • SHA1

    5461580bd10ff1f995793c66033d12b53bf56f85

  • SHA256

    1076ec5e878c8e71d9430d078799dd0a4d775ad2a23120e38cd8bb93b37e4d70

  • SHA512

    53bd7ade262e421d1726ad79c636919507750ba9b0b7dc34cc7778165cc4fbd474cfb2dd4851f5d5ffc17bb69e53ac0ee557af22818fbb4cf220100974bf38f1

  • SSDEEP

    24576:MMWFK6ZlLOZ2j9cRTPSqANPah6ZFaBLOPZVKTsSxK7:coa9uSqAVa1Cs/K

Malware Config

Extracted

Family

darkcomet

Botnet

Opfer

C2

panzaknacka.hopto.org:1337

Mutex

MAC-7UVFFZ6

Attributes
  • InstallPath

    MSDCSC\sysdate.exe

  • gencode

    5KLmF0Xbpz15

  • install

    true

  • offline_keylogger

    true

  • password

    l0rn

  • persistence

    false

  • reg_key

    sysdate.exe

rc4.plain

Signatures

  • Darkcomet

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

  • Darkcomet family
  • ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

  • ISR Stealer payload 3 IoCs
  • Isrstealer family
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Detected Nirsoft tools 9 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 4 IoCs

    Password recovery tool for various web browsers

  • Executes dropped EXE 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • UPX packed file 16 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_092362ef67e69075208c724ae99293e7.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_092362ef67e69075208c724ae99293e7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4840
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      2⤵
        PID:3608
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        2⤵
        • Modifies WinLogon for persistence
        • Adds Run key to start application
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1808
        • C:\Windows\SysWOW64\MSDCSC\sysdate.exe
          "C:\Windows\system32\MSDCSC\sysdate.exe"
          3⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:3612
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        2⤵
          PID:1956
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
          2⤵
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:3000
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"
            3⤵
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:4064
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp
              4⤵
              • System Location Discovery: System Language Discovery
              PID:552
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:1092
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
              "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp
              4⤵
              • Accesses Microsoft Outlook accounts
              • System Location Discovery: System Language Discovery
              PID:2512

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\MSDCSC\sysdate.exe

        Filesize

        1.1MB

        MD5

        d881de17aa8f2e2c08cbb7b265f928f9

        SHA1

        08936aebc87decf0af6e8eada191062b5e65ac2a

        SHA256

        b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

        SHA512

        5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

      • memory/552-23-0x0000000000400000-0x0000000000454000-memory.dmp

        Filesize

        336KB

      • memory/552-34-0x0000000000400000-0x0000000000454000-memory.dmp

        Filesize

        336KB

      • memory/552-42-0x0000000000400000-0x0000000000454000-memory.dmp

        Filesize

        336KB

      • memory/552-25-0x0000000000400000-0x0000000000454000-memory.dmp

        Filesize

        336KB

      • memory/1092-35-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/1092-28-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/1092-40-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/1092-26-0x0000000000400000-0x0000000000426000-memory.dmp

        Filesize

        152KB

      • memory/1808-60-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1808-13-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1808-19-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1808-12-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1808-3-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1808-10-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/1808-5-0x0000000000400000-0x00000000004B7000-memory.dmp

        Filesize

        732KB

      • memory/2512-47-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/2512-33-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/2512-32-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/2512-29-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/2512-31-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/3000-56-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/3000-9-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/3000-6-0x0000000000400000-0x0000000000470000-memory.dmp

        Filesize

        448KB

      • memory/4064-17-0x0000000000400000-0x000000000045F000-memory.dmp

        Filesize

        380KB

      • memory/4064-30-0x0000000000460000-0x0000000000529000-memory.dmp

        Filesize

        804KB

      • memory/4064-18-0x0000000000400000-0x000000000045F000-memory.dmp

        Filesize

        380KB

      • memory/4064-15-0x0000000000400000-0x000000000045F000-memory.dmp

        Filesize

        380KB

      • memory/4064-44-0x0000000000400000-0x000000000045F000-memory.dmp

        Filesize

        380KB

      • memory/4064-16-0x0000000000400000-0x000000000045F000-memory.dmp

        Filesize

        380KB

      • memory/4840-20-0x0000000074730000-0x0000000074CE1000-memory.dmp

        Filesize

        5.7MB

      • memory/4840-0-0x0000000074732000-0x0000000074733000-memory.dmp

        Filesize

        4KB

      • memory/4840-2-0x0000000074730000-0x0000000074CE1000-memory.dmp

        Filesize

        5.7MB

      • memory/4840-1-0x0000000074730000-0x0000000074CE1000-memory.dmp

        Filesize

        5.7MB