Analysis

  • max time kernel
    147s
  • 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
    13-06-2024 12:33

General

  • Target

    2024-06-13_3daccc27768288bbd1b898b683735b3c_cryptolocker.exe

  • Size

    49KB

  • MD5

    3daccc27768288bbd1b898b683735b3c

  • SHA1

    b7e7235022e66f7127e65f345704cda63eab91d5

  • SHA256

    04a66ede7d31fe8a9160d572e73c7eab423e0e213bc679c5a0c41e378664068d

  • SHA512

    159afc54188a2fa9da6597d8159e706760cdf3d6374477de623ffff4062c6a813d934f1c887705b71479da3de79c57628a22240a65842563bfc5847b34cdbf27

  • SSDEEP

    768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaaEqbIu556Blvp:X6QFElP6n+gJQMOtEvwDpjB0GIWSlvp

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\2024-06-13_3daccc27768288bbd1b898b683735b3c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_3daccc27768288bbd1b898b683735b3c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3260
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4272

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    8980246213746517a338e4ff92176842

    SHA1

    4f03c5d500b9ef20f8846c857e108a29b39a8b13

    SHA256

    276d7e90f3d270b5934c5cc07d20814b96b1112799529e02e056701892a5db28

    SHA512

    86f52a248f2cb52e948910359b80b8f8852dba64c0ed9353177bfcd7a8a1de3188203365de7821b517254cf8727b8d6387c93fccf12a979a72f533aec682b7b3

  • memory/3260-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3260-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3260-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB