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Analysis

  • max time kernel
    137s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2024, 14:52

General

  • Target

    2024-02-20_a0b0149fb8c352722ca3732e499123e9_cryptolocker.exe

  • Size

    58KB

  • MD5

    a0b0149fb8c352722ca3732e499123e9

  • SHA1

    094d891b90b7e37dd8643f1bd4706003a6ed8042

  • SHA256

    636f0198735446ab2e6e522f29c87c03f91d08fcece3b7df6f44dbb8ed7522b7

  • SHA512

    122f770bd669b48e7c9220cde75d0e5552995d47b490125b7b714c92f2cb05b1e93bbaa567a9d5653ff56515d275f3f1f153567f0479edb01fc29c3993896e7a

  • SSDEEP

    1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHD:btng54SMLr+/AO/kIhfoKMHdu

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\2024-02-20_a0b0149fb8c352722ca3732e499123e9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-20_a0b0149fb8c352722ca3732e499123e9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:792
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:4184

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    58KB

    MD5

    5d54346356f4e6542cc8f4ccb19eb061

    SHA1

    7a8c19f9b4021faae15956cab6e088aae11256b4

    SHA256

    e2d62ba3570f35bc74bf55c6ad5e45ee5c5b32281b632057c527b07ccc5a400b

    SHA512

    29bf42ea48d97f9da56cf89e534ce69585069b9b51fd1f7190f41803dc1fdf71aa4c798f7a27d9dbde9b0e17b75bc0b4960325679269c3dfdd4d4f1929056546

  • memory/792-0-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/792-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB

  • memory/792-2-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/4184-21-0x0000000002D60000-0x0000000002D66000-memory.dmp

    Filesize

    24KB