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Analysis

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

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06/04/2024, 14:05

General

  • Target

    2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe

  • Size

    89KB

  • MD5

    402f2e33f3a863508492018397bf3577

  • SHA1

    4670c93571a3232e9828d360599713af59d82b6f

  • SHA256

    94f2ef2d8ea0aff6bc9b15771e5599a5c932e3bc6cfd6ef6cd756e9b3f6148b5

  • SHA512

    7b8bb839a5f4680175d5533577ad583f285a95eda5cf47c1d1bb0ef2d57b5bd1ff72c213e926c61f118ad2d8ddd46a187d4fc2d6aac7b7f0698d30f8cf9450e5

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5H8u8rBN6nqEZNi1OkQoV:vCjsIOtEvwDpj5H8zPsa

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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\2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-06_402f2e33f3a863508492018397bf3577_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    89KB

    MD5

    406a3fa49043077f2719b131489f6dab

    SHA1

    3117b5f7a0eb41f779397ac9c70480f348e9fcac

    SHA256

    e48a2276e5f7bf204d2a5214ec2aa3d307b74fa0688a84371b165428d0198de6

    SHA512

    1c21eb43a2e52146c2fed1a3a064fa3b7dcbc519930d97025c72c43fb7e27a35af793af90aa4dfc245aefe196b73d697d4de214ede7df41dd0af5360ad6f206d

  • memory/2156-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2156-2-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2156-1-0x0000000000280000-0x0000000000286000-memory.dmp

    Filesize

    24KB

  • memory/3036-17-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/3036-15-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB