Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/05/2024, 23:23

General

  • Target

    2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe

  • Size

    76KB

  • MD5

    49fbaa883c6420116155bdcef92b74bd

  • SHA1

    c06cabdc2b0c07883cb74dff10831f579bccf8d4

  • SHA256

    d000ab68248879ca3906944ba7c384a886edf94c035205c5cb80b2884d07acf4

  • SHA512

    83d1d4ab167ff29db217a67c60c4bcaf1e90826fb1dc22819ba8b72358198097fa7aa1f8703d7109f98e7bfc947af28732701f0f16e72a55117ea7aa192968a3

  • SSDEEP

    1536:X6QFElP6n+gJQMOtEvwDpjBZYTjipvF2bx1rHsSljg:X6a+SOtEvwDpjBZYvQd2w

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\2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-10_49fbaa883c6420116155bdcef92b74bd_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3732
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\asih.exe

    Filesize

    76KB

    MD5

    80ae6b0291d66cf94f33c9342fa581d0

    SHA1

    7e0a2c6e0473300a3078416021403cfdb75c16b6

    SHA256

    e5f6f062b36c27e33581812fcaf305fecdc35db91ea98264eb66ff7c43e790dc

    SHA512

    41ef73c6a249dbfea5a18cbdd304115c9b529e4f8baffa49eae9d323832b53aadc182e4dfd6c34bff574b03206716410edb8ad0b99dca0a55a7d0dbd4b021762

  • memory/3208-17-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB

  • memory/3208-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3732-0-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/3732-1-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/3732-8-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB