Analysis

  • max time kernel
    145s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2024, 18:29

General

  • Target

    2024-02-03_ab361da61efcba3ad11a0d59f2d098a1_cryptolocker.exe

  • Size

    54KB

  • MD5

    ab361da61efcba3ad11a0d59f2d098a1

  • SHA1

    807532e41a738260d8588135f6d23221459c5eef

  • SHA256

    671e12731b69e6ef69683d7c2f384a63d97e1fd29ffea205a9a3cf8244eefeb9

  • SHA512

    e556337a4edfc1bd3eb81ba77ba1cf398731a9825359783a88a698777a0b868f19f72fc17f4fbd9889fb2287a12e790faa7ef5d59a55b952d25b73bdcd6d83a6

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFv0itq3F:vj+jsMQMOtEvwDpj5HH1nw73KOFsiM3F

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 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\2024-02-03_ab361da61efcba3ad11a0d59f2d098a1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-03_ab361da61efcba3ad11a0d59f2d098a1_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:848
    • 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:1696

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    54KB

    MD5

    e35e7f5689ed485bee37c27781fb3e6e

    SHA1

    6def550f4dd7a07915e52f12ffeb31954963ad2f

    SHA256

    ae518abc3f48b813d961bd014005e7cebc3496ee91b729bb394969139710c4af

    SHA512

    580a87f94e518069586a00ef93001b548fa7b44653fefabf90089e1302e1af32f4b37e9089939e87549c9b159e74d391ddd3cbe54d46d12dd3f4a26a26744286

  • memory/848-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/848-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/848-2-0x0000000000610000-0x0000000000616000-memory.dmp

    Filesize

    24KB

  • memory/1696-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/1696-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB