Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 18:26

General

  • Target

    2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe

  • Size

    44KB

  • MD5

    57e1192772971955d10e95dfcd6768b4

  • SHA1

    cf4ba271897a5dfba654fcf511f14e5a393adcce

  • SHA256

    c6886864b5148cd35937f937cee42249a07895b4479d86eb459ca4a3e94f9a99

  • SHA512

    97c9ad9f6dd12272efb851ee2b3b718a3c274f1c915fb00cfeacae60df541de6049270b57fba4a90adbf54f318ce95ac05b66db9d3bc7d90cf0aa533c283756b

  • SSDEEP

    768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Ha:X6QFElP6n+gJQMOtEvwDpjBmzDkWDta

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\2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_57e1192772971955d10e95dfcd6768b4_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3392
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2220

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    44KB

    MD5

    6ed73d504d1cb043f0769d5f035b8e14

    SHA1

    29ad9c432013e5f8386c39d2fe7b2db174858e64

    SHA256

    b9563897e81d8275349232683ce91b2514ee77f3b46868a2e9c683daaefd1236

    SHA512

    3ec63306a0ec353f0eca42b5f8515a8c39098c8654ae7e40fd1406d3e05f0184659190ef95509843f70d39c33544c23ccc76e441077e7cc76bd2aebb0a6f52df

  • memory/2220-17-0x0000000001F70000-0x0000000001F76000-memory.dmp

    Filesize

    24KB

  • memory/2220-23-0x0000000001F50000-0x0000000001F56000-memory.dmp

    Filesize

    24KB

  • memory/3392-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/3392-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/3392-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB