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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/03/2024, 20:27

General

  • Target

    2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe

  • Size

    77KB

  • MD5

    2d96a189f951f303e61f7a04f91e0b5b

  • SHA1

    f4797e8a077bac03f228d0e083bb75b44b846900

  • SHA256

    dc91c130b928995a80f3668bfa1155b134d783598adef85deb485ae4e8543182

  • SHA512

    941cdde047d8663d1ee55d76c71e93bdc063052b6dc4b901a8f9a089d4849c03f6ce07873a6548424c3e4bb5f88f0249c9ca41300061b0cc2bbdcde00c9a319f

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KEWTgI:ZVxkGOtEvwDpjcax0

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\2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-13_2d96a189f951f303e61f7a04f91e0b5b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:228
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    77KB

    MD5

    23395618945b63a854f60378fb94d702

    SHA1

    f13d3bcdb8d59b93f737abd680d71751ddca1af3

    SHA256

    c74cbf461179cb98b3e7ddd87e0b06a343a02125f893dceec203a759e7a9f67e

    SHA512

    ce6cad5ff66ec99c35dbd23a7d3c3a04bf010a9391b04e9b5d5ebf1b35d99cc6693cbd12593a60fd43323429a7e3a64b37e6909158253f42ee7e3f24fea14d28

  • memory/228-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/228-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/228-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/228-3-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/228-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3808-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3808-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

    Filesize

    24KB

  • memory/3808-22-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB