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, 18:48

General

  • Target

    2024-06-12_570a8a8f4397f3aed716cd8d8b12f855_cryptolocker.exe

  • Size

    44KB

  • MD5

    570a8a8f4397f3aed716cd8d8b12f855

  • SHA1

    9b4298604cd22e9c41b569bd2b3f99d7520ce073

  • SHA256

    dea9b22a98b225868f7c2f9461255f05ab1a8c0cdc449a25448faadacaa6447a

  • SHA512

    ef7ce233f20d4fb0acfdee09d3c2c793baa33055fc2c7eb579d08f5f67d3d477a1cd81b057dccff77a9602676e9f2c8e0453a4db806c6627cc486b688d48a3f4

  • SSDEEP

    768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hxl:X6QFElP6n+gJQMOtEvwDpjBmzDkWDtj

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_570a8a8f4397f3aed716cd8d8b12f855_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_570a8a8f4397f3aed716cd8d8b12f855_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:5032

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    5a0f0834f0552467c9ca89c6e3ff4f45

    SHA1

    bf83c9eaa66f2f8f21196b4cc705b83f3294eddc

    SHA256

    6265cdad19b6c0bb43884aad86c36c56ca636897239c1ef72704662c6ba2bc7d

    SHA512

    536c06f809a10121d38e80493c4cf192ff5e5dcf63aa23d15fe654bf770f18e2117b8aeb5daca515437f58c0ed959199688bda4e3e71a74299eeeee8e34d82b1

  • memory/3216-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3216-1-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/3216-8-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/5032-23-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB