Analysis

  • max time kernel
    218s
  • max time network
    237s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 11:03

General

  • Target
    7d32927873d723109cfbf6a7bb2b3b68dc599ea9c62181435738d5cc0cccb224.exe
  • Size 601KB
  • Sample221127-m5t96aff7s
  • SHA256 7d32927873d723109cfbf6a7bb2b3b68dc599ea9c62181435738d5cc0cccb224
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

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

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

  • 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). Likely ransomware behaviour.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7d32927873d723109cfbf6a7bb2b3b68dc599ea9c62181435738d5cc0cccb224.exe
    "C:\Users\Admin\AppData\Local\Temp\7d32927873d723109cfbf6a7bb2b3b68dc599ea9c62181435738d5cc0cccb224.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:5004
    • C:\Users\Admin\AppData\Local\Temp\n4322\s4322.exe
      "C:\Users\Admin\AppData\Local\Temp\n4322\s4322.exe" 2fc03f4ffa0a9f0479b5705cU9iH8XjfCD7nKujnWwtFNB3gx3QDp0jA8NywnWlRxIDVBpUsabqU6v/Gv98/1Kc2a68jq01TSg8WZPoUlOMmrf4azvNnxXh9LZD3SBKQdf3TuysZKwvPAeY2yUfGPcWXkP4snEs6Fis0oL/jJ9GsuGs8op0ZbnvEy79LyTs= /v "C:\Users\Admin\AppData\Local\Temp\7d32927873d723109cfbf6a7bb2b3b68dc599ea9c62181435738d5cc0cccb224.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3344

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        s4322.exe

        • Path C:\Users\Admin\AppData\Local\Temp\n4322\s4322.exe
        • Size 349KB
        • SHA256 19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951
        • MD5 SHA1 SHA512 SSDEEP

        s4322.exe

        • Path C:\Users\Admin\AppData\Local\Temp\n4322\s4322.exe
        • Size 349KB
        • SHA256 19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951
        • MD5 SHA1 SHA512 SSDEEP