Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/06/2024, 15:51

General

  • Target
    2024-06-12_3be486487470959a1df7b40b76dd6c5a_cryptolocker.exe
  • Size 38KB
  • Sample240612-tapvhs1akc
  • SHA256 5c605be0617ac8485eb47f5f8a1955515c4044d62d16712525f0b482362d9a35
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-12_3be486487470959a1df7b40b76dd6c5a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_3be486487470959a1df7b40b76dd6c5a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3140
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      PID:1748

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        gewos.exe

        • Path C:\Users\Admin\AppData\Local\Temp\gewos.exe
        • Size 39KB
        • SHA256 e58f541f42373ce5865701a3d2edfd9b0ec3252b10b4f0b8b218c76a45abb990
        • MD5 SHA1 SHA512 SSDEEP

        memory/1748-25-0x00000000020A0000-0x00000000020A6000-memory.dmp

        memory/3140-0-0x0000000002240000-0x0000000002246000-memory.dmp

        memory/3140-1-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/3140-8-0x0000000002240000-0x0000000002246000-memory.dmp