Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 23:33

General

  • Target

    2024-06-12_8ff94b48a4f91dba946683bdd207820a_cryptolocker.exe

  • Size

    87KB

  • MD5

    8ff94b48a4f91dba946683bdd207820a

  • SHA1

    1daacd44ca901004ad5f12fbb5c8bbfe3a554fc8

  • SHA256

    5787c80fca97918ce6ac9d3b61ea42c6236780912237734814dbe69d290df724

  • SHA512

    f6165a36c6f46b2f59b922a8d4ad960e4b3a76bd8559f57a823a72571523e12a93d086946637b59e1898cfca17c6640908a5c6aa04c16fc6e67e13f593151f8f

  • SSDEEP

    1536:V6QFElP6n+gMQMOtEvwDpjyaLccVNl6a3:V6a+pOtEvwDpjvpj

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\2024-06-12_8ff94b48a4f91dba946683bdd207820a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_8ff94b48a4f91dba946683bdd207820a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3576
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    87KB

    MD5

    153e1548f5f45ead6417386fa6c7797c

    SHA1

    c3e0420de0bb31ba06a14548fe08c00f3ddfc63c

    SHA256

    e3467c474d8ba1039a2a25e688e941f0be4221d32939e1366f02090dabf83201

    SHA512

    a3ce1f906ef6053d0f96c0a3b7269923e58d9382078495d6b6462e245bb05f60010e569c80ac0ce2bc260e6e54d6e064872748f0f76823d0836a4617cfe40135

  • memory/3576-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

    Filesize

    24KB

  • memory/3576-1-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/3576-8-0x00007FFCD70D0000-0x00007FFCD72C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3748-17-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/3748-23-0x00007FFCD70D0000-0x00007FFCD72C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3748-24-0x00007FFCD70D0000-0x00007FFCD72C5000-memory.dmp

    Filesize

    2.0MB