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Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/04/2024, 11:08

General

  • Target

    2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe

  • Size

    49KB

  • MD5

    e1f7d105de09865eb758ff3c25432e74

  • SHA1

    06c08dc518b123211619a7a0f8e20090c2df9961

  • SHA256

    9c1de734620ff27a073cb426fcf81bf88dc275a736682069edb90cb5341665eb

  • SHA512

    556a549fee492210872e9950a0ddfc5f2f6c91cfe1932bac0263ccaf91a8fd946150051cb4eb90786d277a9ae389bceecf82b4b6473706fae027e40baad43279

  • SSDEEP

    768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu55id3AMWZN:X6QFElP6n+gJQMOtEvwDpjB0GIWiWLD

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\2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-22_e1f7d105de09865eb758ff3c25432e74_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3276
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    c6c6a08af9df39737dd0d104eaff7be9

    SHA1

    a94a4b5a66300804dd755ad3f576fe2f72d4518e

    SHA256

    a559e2b3a7fde646e260380d58c22c62a7e05e8186455d44f2624cc02fd9315d

    SHA512

    09069b3c26bfa17e9713767156ff1c52e43fd3c4ffc4ae6d72b3175a392fcbd4e9e96a4a72bfbaf423a60e78ebf68f44458fad57b458bc3dba7516290e159346

  • memory/2116-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/2116-20-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3276-0-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/3276-1-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/3276-2-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB