Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2024, 21:35

General

  • Target
    5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe
  • Size 1.6MB
  • Sample240407-1fc68sfd27
  • SHA256 5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 19 IoCs
  • UPX dump on OEP (original entry point) 21 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 21 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 18 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe
    "C:\Users\Admin\AppData\Local\Temp\5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Users\Admin\AppData\Local\Temp\5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe
      "C:\Users\Admin\AppData\Local\Temp\5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4740
      • C:\Users\Admin\AppData\Local\Temp\5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe
        "C:\Users\Admin\AppData\Local\Temp\5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1644
    • C:\Users\Admin\AppData\Local\Temp\5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe
      "C:\Users\Admin\AppData\Local\Temp\5fa74735f3c4707a31d6d5f64c8549ac1eaf88f3c85e7701dc397ddc03e8c96e.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:1616

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        swedish handjob xxx catfight 50+ .avi.exe

        • Path C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\swedish handjob xxx catfight 50+ .avi.exe
        • Size 1.1MB
        • SHA256 7d584ea63cb7be029373b46ff7b6aeb63751851a4c16720aec5d1c57f5582403
        • MD5 SHA1 SHA512 SSDEEP

        memory/1616-165-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1616-187-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1644-166-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-207-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-220-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-248-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-244-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-190-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-196-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-0-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-211-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-216-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-185-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-224-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-228-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-232-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-236-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/1656-240-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/4740-36-0x0000000000400000-0x000000000041E000-memory.dmp

        memory/4740-186-0x0000000000400000-0x000000000041E000-memory.dmp