Analysis

  • max time kernel
    91s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/06/2024, 02:44

General

  • Target
    a7bec340ed8ea46eb5bda0e0514b41ee_JaffaCakes118.exe
  • Size 628KB
  • Sample240614-c76qvswdrm
  • SHA256 11bea4e10dc79303ea713241060110c56194899130954d2e051efc0e30e07bbf
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7bec340ed8ea46eb5bda0e0514b41ee_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\a7bec340ed8ea46eb5bda0e0514b41ee_JaffaCakes118.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Users\Admin\AppData\Local\Temp\n9350\s9350.exe
      "C:\Users\Admin\AppData\Local\Temp\n9350\s9350.exe" 2aa0d601d613f5ca8f5130badZpyZSRj2ouYrQgEX7Bz5FFaJ9Iw3bMZ8H5H0tDLI7VnHn8uosiA5GLLr9sQGQeksb7PcW/S/M6w4c7xtcOlJykfyR+EoE14F5XLb/l7Kd8p1f40YTIxNzsBo5CsPUnevrhQId2uvP6gvFfM+NDYK5y13fx1Wg9XWBQAfLs= /v "C:\Users\Admin\AppData\Local\Temp\a7bec340ed8ea46eb5bda0e0514b41ee_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:4772
      • C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
        dw20.exe -x -s 2016
        3⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of AdjustPrivilegeToken
        PID:1612

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        s9350.exe

        • Path C:\Users\Admin\AppData\Local\Temp\n9350\s9350.exe
        • Size 373KB
        • SHA256 9387ab6c4fc5227ce06f355a1906ded58419760aefdf28bbe2075c2f0a565492
        • MD5 SHA1 SHA512 SSDEEP

        memory/4772-12-0x00007FFD56DB5000-0x00007FFD56DB6000-memory.dmp

        memory/4772-13-0x00007FFD56B00000-0x00007FFD574A1000-memory.dmp

        memory/4772-27-0x000000001C800000-0x000000001C810000-memory.dmp

        memory/4772-30-0x000000001CE50000-0x000000001D31E000-memory.dmp

        memory/4772-31-0x000000001D3C0000-0x000000001D45C000-memory.dmp

        memory/4772-32-0x00007FFD56B00000-0x00007FFD574A1000-memory.dmp

        memory/4772-39-0x00007FFD56B00000-0x00007FFD574A1000-memory.dmp