Analysis

  • max time kernel
    122s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    16/01/2022, 03:29

General

  • Target
    149939efc80bc4dd49378f86b468a379.exe
  • Size 557KB
  • Sample220116-d1xeaafecr
  • SHA256 de0d24df79f99286da0234aa1536470d7596c53e531173d693d6ccc60b98e84c
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • suricata: ET MALWARE DCRAT Activity (GET)

    suricata: ET MALWARE DCRAT Activity (GET)

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\149939efc80bc4dd49378f86b468a379.exe
    "C:\Users\Admin\AppData\Local\Temp\149939efc80bc4dd49378f86b468a379.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1204
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\lygmcbWwVB.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1368
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:1692

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1204-54-0x0000000000D30000-0x0000000000DC2000-memory.dmp

          memory/1204-55-0x0000000000D30000-0x0000000000DC2000-memory.dmp

          memory/1204-56-0x000000001AE20000-0x000000001AE22000-memory.dmp

          memory/1204-58-0x0000000000170000-0x0000000000180000-memory.dmp

          memory/1204-59-0x0000000000430000-0x000000000043A000-memory.dmp

          memory/1204-57-0x0000000000160000-0x0000000000170000-memory.dmp