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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/04/2024, 03:58

General

  • Target

    2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe

  • Size

    60KB

  • MD5

    9fc938fd1c7e7bea6280780069ec5840

  • SHA1

    660d447f2bde93ad2c3ffb45657a9fbb6ca34507

  • SHA256

    5e8077c470f27970eb54b2720e0fd1f0d49dc7beb3d93c4e6833774e5f209375

  • SHA512

    97e0f74a1da43a977a0428b57a5bc440436f98d4037489e825cd309c8bab624f00fb55462b9af0a36cf572db8117e47ca9780970707f73d54fcb89ee26b9e202

  • SSDEEP

    768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9Q:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWh

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-16_9fc938fd1c7e7bea6280780069ec5840_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\misid.exe

    Filesize

    60KB

    MD5

    4b2bccdd16b47b94ee55df1578b7caeb

    SHA1

    d816f5434b87fb16c84f383ea67b80539d0eb5b8

    SHA256

    cc5a2905cf7b80dda3bdc375eef65b6aac6f4804610d927569041ef7cc2cc12a

    SHA512

    1da7c693cbc04f0bbd0033b75fd8ad872733ef8313ef7d6a0050f47dbc907b7dc26d3e08d5cb5a5db1bfdd4da1ada4fcb2d354ac59677dd754a3d3bccce3799f

  • memory/2880-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2880-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2880-3-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2880-2-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2880-12-0x00000000006A0000-0x00000000006AB000-memory.dmp

    Filesize

    44KB

  • memory/2880-16-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2948-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/2948-19-0x00000000002E0000-0x00000000002E6000-memory.dmp

    Filesize

    24KB

  • memory/2948-26-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2948-27-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB