Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 18:27

General

  • Target

    2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe

  • Size

    41KB

  • MD5

    654a19a4419aeeecc49a7d91571a831a

  • SHA1

    c0aec8ed1b2989a1130faa83427dc0ff04a6ec55

  • SHA256

    8106e9d46adfa44d210a78e9018f522237ecd8186918c38bb9c9c47bc0e81bec

  • SHA512

    2171cb221203976636bae13dae51c7ffd0b717ad458783f3d22f330a22e08a43d9502fc70314d8d5607438be4498f8c3b3e4c4d3602201f5afb523d13599d26b

  • SSDEEP

    768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnCH:bA6YcA/X6G0W143QI

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    42KB

    MD5

    5bbc1e4c3b9e6c5dca872e889a71ecec

    SHA1

    e4f484d182e0d312a34ae2e6e1a1a5172e992f1f

    SHA256

    d2d8d493d9b3e8e5dc625eddb1e90063d9de9206933f033c1407d35f7d0c0966

    SHA512

    4b0ae27ec596eaf0080f2ddf4db470c91ffb1ba50a9ef5385d1953d9e5d6299db061df6f95baee8bab9ee50a932d5e36d1c60e070e8713b5c6ef8947a2f4e8ab

  • memory/228-17-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/228-23-0x0000000002120000-0x0000000002126000-memory.dmp

    Filesize

    24KB

  • memory/4012-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB

  • memory/4012-1-0x0000000003150000-0x0000000003156000-memory.dmp

    Filesize

    24KB

  • memory/4012-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

    Filesize

    24KB