Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2024, 09:42

General

  • Target

    2024-11-21_f651d7d2017cfb641e7da0a08c9bbc06_cryptolocker.exe

  • Size

    44KB

  • MD5

    f651d7d2017cfb641e7da0a08c9bbc06

  • SHA1

    aa0bf7ceae369af10f5dc1d78d9edac0c48b641b

  • SHA256

    0d83b103cc0023b121aad7abd2216db15e65cb6455c859aeb1b69b69fd9cf186

  • SHA512

    bbae5229fceb71bca028ba36fa980e673cc901f5cfd0d59dc642114c375ea5a5812bb6b4a91ef4fb96aa9c85e8fb5b40657b84febf29e3b273e0ae82d06adade

  • SSDEEP

    768:wHGGaSawqnwjRQ6ESlmFOsPoOdQtOOtEvwDpjm6WaJIOc+UPPEkL7vF1TWu:YGzl5wjRQBBOsP1QMOtEvwDpjgarrkLP

Score
7/10

Malware Config

Signatures

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-21_f651d7d2017cfb641e7da0a08c9bbc06_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-21_f651d7d2017cfb641e7da0a08c9bbc06_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4884
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3512

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    44KB

    MD5

    91f51f75fb47db9e2f5056e019ebcfbb

    SHA1

    e12a2f74d5c103dfee9ab9461335633b1c9bda47

    SHA256

    9fed224a7edef48ca294f96bec7c8012df5c03743e0ee33eea27af9b3218644f

    SHA512

    71fae8125433ed79d0e0562f6511595c70f8c9d77165bb4dd7d4928ac064e100e1b1747befe6a6f2d583398cde114722e5d9757d482e8698d06fddc03deddb11

  • memory/3512-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3512-21-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/3512-20-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/3512-27-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/4884-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/4884-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4884-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/4884-3-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/4884-18-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB