Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    18-07-2022 10:42

General

  • Target

    b2b09138f6bd625c119b4baae4133f3583ccc1e19f0e883fd31171f2a39a5f3e.exe

  • Size

    291KB

  • MD5

    ffb8152ef40edc5c178d228b9c96a06d

  • SHA1

    83bc9bc18e5d4e68add42624838827308e6cdafc

  • SHA256

    b2b09138f6bd625c119b4baae4133f3583ccc1e19f0e883fd31171f2a39a5f3e

  • SHA512

    8b10109b48851decc3a6d4dc5bb977c25e72988af79d241fe7bd049b6080358ac76ce59540024e6401fb61d12386e6b07e32966e85563d6f46d31f66ae81ccb3

Score
10/10

Malware Config

Extracted

Family

vulturi

C2

http://52.188.26.40:5050/gate

Attributes
  • c2_encryption_key

    welovefortnite

  • c2_user

    root

Signatures

  • Vulturi

    An info stealer written in C# and first seen in January 2021.

  • Vulturi payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2b09138f6bd625c119b4baae4133f3583ccc1e19f0e883fd31171f2a39a5f3e.exe
    "C:\Users\Admin\AppData\Local\Temp\b2b09138f6bd625c119b4baae4133f3583ccc1e19f0e883fd31171f2a39a5f3e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C chcp 65001 && ping 127.0.0.1 && DEL /F /S /Q /A "C:\Users\Admin\AppData\Local\Temp\b2b09138f6bd625c119b4baae4133f3583ccc1e19f0e883fd31171f2a39a5f3e.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3736
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:3808
        • C:\Windows\system32\PING.EXE
          ping 127.0.0.1
          3⤵
          • Runs ping.exe
          PID:4644

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2912-130-0x0000000000920000-0x0000000000970000-memory.dmp

      Filesize

      320KB

    • memory/2912-131-0x00007FFEFD280000-0x00007FFEFDD41000-memory.dmp

      Filesize

      10.8MB

    • memory/2912-132-0x00007FFEFD280000-0x00007FFEFDD41000-memory.dmp

      Filesize

      10.8MB

    • memory/2912-135-0x00007FFEFD280000-0x00007FFEFDD41000-memory.dmp

      Filesize

      10.8MB

    • memory/3736-133-0x0000000000000000-mapping.dmp

    • memory/3808-134-0x0000000000000000-mapping.dmp

    • memory/4644-136-0x0000000000000000-mapping.dmp