Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-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 2 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 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27330ccbfadf5f57b8a6f5bcdbbb1e20_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\27330ccbfadf5f57b8a6f5bcdbbb1e20_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Program Files\Melancholically\emperor.exe
      "C:\Program Files\Melancholically\emperor.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2712
      • 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:3828
    • 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:3716
      • 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:3740
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Change /TN \microsoft\windows\defrag\scheduleddefrag /ENABLE
        3⤵
          PID:3752
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /run /TN \microsoft\windows\defrag\scheduleddefrag
          3⤵
            PID:3764
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {3C560D68-0063-4BA3-A159-3B4FCE7842E3} S-1-5-21-3502430532-24693940-2469786940-1000:PSBQWFYT\Admin:Interactive:[1]
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:3776
        • C:\Program Files\Melancholically\emperor.exe
          "C:\Program Files\Melancholically\emperor.exe"
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3852

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            nsExec.dll

            • Path C:\Users\Admin\AppData\Local\Temp\nsyECDF.tmp\nsExec.dll
            • Size 7KB
            • SHA256 1f18f4126124b0551f3dbcd0fec7f34026f930ca509f04435657cedc32ae8c47
            • MD5 SHA1 SHA512 SSDEEP

            nsProcess.dll

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

            emperor.exe

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

            NSISList.dll

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

            System.dll

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

            registry.dll

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

            memory/2372-18-0x0000000001EB0000-0x0000000001ED4000-memory.dmp

            memory/2372-24-0x0000000001EE0000-0x0000000001F39000-memory.dmp

            memory/2712-1149-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/2712-290-0x00000000001C0000-0x00000000001C1000-memory.dmp

            memory/3828-4108-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3828-4109-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3828-4111-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3828-4115-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3828-4116-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3828-4118-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3828-4119-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3828-4122-0x0000000000400000-0x0000000000FE0000-memory.dmp

            memory/3852-4107-0x0000000000400000-0x0000000000FE0000-memory.dmp