Analysis

  • max time kernel
    149s
  • 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
    22/05/2024, 09:55

General

  • Target
    ee2da28704ab9ef00feeb8687f0a6254ebd21b472f572c607fe4cc500533e638.exe
  • Size 59KB
  • Sample240522-lxy3psbb47
  • SHA256 ee2da28704ab9ef00feeb8687f0a6254ebd21b472f572c607fe4cc500533e638
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\ee2da28704ab9ef00feeb8687f0a6254ebd21b472f572c607fe4cc500533e638.exe
    "C:\Users\Admin\AppData\Local\Temp\ee2da28704ab9ef00feeb8687f0a6254ebd21b472f572c607fe4cc500533e638.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2816
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3496

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        asih.exe

        • Path C:\Users\Admin\AppData\Local\Temp\asih.exe
        • Size 60KB
        • SHA256 c9a62fe5292920f5e17c19bc3c91a3cd82e165128f7ffc0607b7c8da68853437
        • MD5 SHA1 SHA512 SSDEEP

        memory/2816-0-0x00000000007C0000-0x00000000007C6000-memory.dmp

        memory/2816-1-0x0000000002080000-0x0000000002086000-memory.dmp

        memory/2816-8-0x00000000007C0000-0x00000000007C6000-memory.dmp

        memory/3496-17-0x00000000006E0000-0x00000000006E6000-memory.dmp

        memory/3496-23-0x0000000000660000-0x0000000000666000-memory.dmp