Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/07/2024, 23:21

General

  • Target
    27330ccbfadf5f57b8a6f5bcdbbb1e20_JaffaCakes118.exe
  • Size 4.1MB
  • Sample240705-3cbv4syepn
  • SHA256 8f4d63fea00eca6d91147de6a10b7aae6069f164ef00d5986eff571249552dae
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • RMS

    Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 64 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27330ccbfadf5f57b8a6f5bcdbbb1e20_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\27330ccbfadf5f57b8a6f5bcdbbb1e20_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1252
    • C:\Program Files\Melancholically\emperor.exe
      "C:\Program Files\Melancholically\emperor.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:980
      • C:\Program Files\Melancholically\emperor.exe
        "C:\Program Files\Melancholically\emperor.exe" -second
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:3120
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c SchTasks /create /f /XML %temp%\Log379.xml /TN \microsoft\windows\defrag\scheduleddefrag && schtasks /Change /TN \microsoft\windows\defrag\scheduleddefrag /ENABLE && schtasks /run /TN \microsoft\windows\defrag\scheduleddefrag
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5172
      • C:\Windows\SysWOW64\schtasks.exe
        SchTasks /create /f /XML C:\Users\Admin\AppData\Local\Temp\Log379.xml /TN \microsoft\windows\defrag\scheduleddefrag
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:5224
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Change /TN \microsoft\windows\defrag\scheduleddefrag /ENABLE
        3⤵
          PID:5240
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /run /TN \microsoft\windows\defrag\scheduleddefrag
          3⤵
            PID:5256
      • C:\Program Files\Melancholically\emperor.exe
        "C:\Program Files\Melancholically\emperor.exe"
        1⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:5272

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            emperor.exe

            • Path C:\Program Files\Melancholically\emperor.exe
            • Size 11.2MB
            • SHA256 38c164ea976d3e5da89243559a1b28aed2afc6e4a29a60e8bd6e4c1cfbbf3511
            • MD5 SHA1 SHA512 SSDEEP

            libeay32.dll

            • Path C:\Program Files\Melancholically\libeay32.dll
            • Size 1.3MB
            • SHA256 a8124500cae0aba3411428c2c6df2762ea11cc11c312abed415d3f3667eb6884
            • MD5 SHA1 SHA512 SSDEEP

            ssleay32.dll

            • Path C:\Program Files\Melancholically\ssleay32.dll
            • Size 337KB
            • SHA256 1f4b3efc919af1106f348662ee9ad95ab019058ff502e3d68e1b5f7abff91b56
            • MD5 SHA1 SHA512 SSDEEP

            NSISList.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nst694A.tmp\NSISList.dll
            • Size 105KB
            • SHA256 df3621f83e9d11be45e0e617b899c4ab0241f60ed56494e892dc449482058402
            • MD5 SHA1 SHA512 SSDEEP

            System.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nst694A.tmp\System.dll
            • Size 12KB
            • SHA256 6950991102462d84fdc0e3b0ae30c95af8c192f77ce3d78e8d54e6b22f7c09ba
            • MD5 SHA1 SHA512 SSDEEP

            nsProcess.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nst694A.tmp\nsProcess.dll
            • Size 4KB
            • SHA256 30c6c3dd3cc7fcea6e6081ce821adc7b2888542dae30bf00e881c0a105eb4d11
            • MD5 SHA1 SHA512 SSDEEP

            registry.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nst694A.tmp\registry.dll
            • Size 24KB
            • SHA256 0b25b20f26de5d5bd795f934c70447112b4981343fcb2dfab3374a4018d28c2d
            • MD5 SHA1 SHA512 SSDEEP

            memory/980-179-0x0000000003120000-0x0000000003121000-memory.dmp

            memory/980-651-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/1252-24-0x00000000032D0000-0x0000000003329000-memory.dmp

            memory/1252-17-0x0000000003160000-0x0000000003184000-memory.dmp

            memory/3120-3110-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3120-3112-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3120-3113-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3120-3117-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3120-3118-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3120-3121-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3120-3124-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/5272-3109-0x0000000000400000-0x0000000000FE0000-memory.dmp