Analysis

  • max time kernel
    192s
  • max time network
    241s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 18:48

General

  • Target

    f5787a488d2a2f59b8bb6281f8acd655fa1a0ea04e7e8b32996cf8388e706a52.exe

  • Size

    160KB

  • MD5

    c7f2e3dbbdfdafaefdec10ee7918adc4

  • SHA1

    f40adfc23f33a5c0438c40dedd497593cd97fe81

  • SHA256

    f5787a488d2a2f59b8bb6281f8acd655fa1a0ea04e7e8b32996cf8388e706a52

  • SHA512

    421bff698e845972b24035871f8379171ae50b537832e48885e5a7ae670a866ab852fc0739821abe863fdba5044b352e5104e6c224a6c1ee65912824d9151643

  • SSDEEP

    3072:/WpHp2c5Y2Xcz5LSnlq11T+iOf1kp5K3C4oQZiEoV:/I2cO2XclLSnPiOfamuWo

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 55 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f5787a488d2a2f59b8bb6281f8acd655fa1a0ea04e7e8b32996cf8388e706a52.exe
    "C:\Users\Admin\AppData\Local\Temp\f5787a488d2a2f59b8bb6281f8acd655fa1a0ea04e7e8b32996cf8388e706a52.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4536
    • C:\Users\Admin\tauiki.exe
      "C:\Users\Admin\tauiki.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:3512

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\tauiki.exe

    Filesize

    160KB

    MD5

    16cee906a6117bfd23be00834f35e12a

    SHA1

    2fa661f8b0e0e7b495d9ae9c0a4e94da9e3c657d

    SHA256

    1fb916895afa80f6a88777dbd122b24faa89353b6cf3054abac096c21d8ed636

    SHA512

    2681640583baac9d9a77cdec48cff5753added97de9fcd24ca30eb67db53c5a36a186b3831b353aa2b33ed033f01c88770b8b3f09bf1521caf428baa70793760

  • C:\Users\Admin\tauiki.exe

    Filesize

    160KB

    MD5

    16cee906a6117bfd23be00834f35e12a

    SHA1

    2fa661f8b0e0e7b495d9ae9c0a4e94da9e3c657d

    SHA256

    1fb916895afa80f6a88777dbd122b24faa89353b6cf3054abac096c21d8ed636

    SHA512

    2681640583baac9d9a77cdec48cff5753added97de9fcd24ca30eb67db53c5a36a186b3831b353aa2b33ed033f01c88770b8b3f09bf1521caf428baa70793760