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Analysis

  • max time kernel
    137s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2024, 06:26

General

  • Target

    2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe

  • Size

    63KB

  • MD5

    802b16c69d76dbc323cd75090fb9e9dc

  • SHA1

    5440b16409081025e9e73902ea07e26f221e2acb

  • SHA256

    bc197cae2499addba32843794e638bec5484272e5adcb279c3ebfe1d3a494819

  • SHA512

    e3fcee58f620fc1e195c17118b450aa327e935ec3e80b7e9d533e8a215dd9ebf6424a0b97e2bcd7027479025208e86ad52bbd293fc159ba4c5757398131877dd

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVn:ZVxkGOtEvwDpjcaw9

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 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\2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-29_802b16c69d76dbc323cd75090fb9e9dc_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:1444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    a3da866456b44c6aae999554fefc1e59

    SHA1

    4f64739697ab70e970ec7dea1b6bb58620a0e1ed

    SHA256

    b7537df926907b32c92f68dfc13538555379ae718272116411c7053088d00f83

    SHA512

    ececef83a4ea4a64fafdde01b75f85a5414863e2329f96dbf742087282fddbdbf5705ae40946faf80ebe834e0900007dafd462f1fa43e4bed737f128eaebda3e

  • memory/1444-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/1444-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/1444-22-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2244-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2244-1-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/2244-2-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/2244-3-0x0000000002230000-0x0000000002236000-memory.dmp

    Filesize

    24KB

  • memory/2244-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB