Analysis

  • max time kernel
    93s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/01/2024, 21:32

General

  • Target

    2024-01-27_792417c49b92e65c8b1706deaa0e1a72_cryptolocker.exe

  • Size

    84KB

  • MD5

    792417c49b92e65c8b1706deaa0e1a72

  • SHA1

    afe4c15a8e6c3e51bb1c67d04747fadbb9de8a66

  • SHA256

    d530c42cf03f96c8b6ef58fdf8b903951104ac7c1e4fa24691a895d5ec7e286c

  • SHA512

    28102e569a90a1d927fd14cb83a879922a7db161ee125b7fb7f9f5d77c289554cb4fa07e7f00be7d842e7a60bb619b73a5f8d23c4542b74d230656734d2ee417

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUfFKazNclMjNUvxhl:i5nkFGMOtEvwDpjNbwQEI8UtzNcO8Xl

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-27_792417c49b92e65c8b1706deaa0e1a72_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-27_792417c49b92e65c8b1706deaa0e1a72_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3196
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2412

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    84KB

    MD5

    cde49b53e49d4f1080f87dc9cfec31ff

    SHA1

    8a4cf75e292f8a74d5baf00991bbb7e6d6f8db56

    SHA256

    f4e9b1ebf6bff676d42b935b963523bace78891b11c21163eb51bf24b0ee4b44

    SHA512

    21efd3a62c453a7da5bb7b11f309787393972d861129a6fe1b2513044d9ba4a3f06f7befb400cd709b72f985bacf0314c2d7e9434e643f64643358863fed91ca

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2412-18-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2412-20-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/2412-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2412-49-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3196-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3196-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/3196-2-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/3196-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

    Filesize

    24KB

  • memory/3196-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB