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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2022, 15:26

General

  • Target

    a18b3b51668560b15cbe844efbb0cd7f8331ed8eff7ff0d18c8968d0be42e5c5.exe

  • Size

    312KB

  • MD5

    08b7fc87387e325c1eb5c8845885f8f0

  • SHA1

    af6b9ff86c14e6078a6e12238fa4c56b5938dc17

  • SHA256

    a18b3b51668560b15cbe844efbb0cd7f8331ed8eff7ff0d18c8968d0be42e5c5

  • SHA512

    e59374ffaac9d26ca78b9ccdb983ee2ee625d4dc8ae83bcc77e311b6bb33ae482541f83255205e60667aff3e312b35e2098c42f54e6112ee38aa793dbc13e88a

  • SSDEEP

    6144:U0J0fXpSuhRjAfpVzs+txf3myzc9f35Q67l1tR0CugEv5ClFB:fJWXpSuhR0fDs+tUsc9f3b3BrEBkB

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 54 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\a18b3b51668560b15cbe844efbb0cd7f8331ed8eff7ff0d18c8968d0be42e5c5.exe
    "C:\Users\Admin\AppData\Local\Temp\a18b3b51668560b15cbe844efbb0cd7f8331ed8eff7ff0d18c8968d0be42e5c5.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:1828
    • C:\Users\Admin\xuidah.exe
      "C:\Users\Admin\xuidah.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:2416

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\xuidah.exe

    Filesize

    312KB

    MD5

    c098b227c52832f999eb65e8fefc3c86

    SHA1

    05fef07b6d600c58601dac4adc559e585af0b3d7

    SHA256

    3ac6747dd3f97c5bfcc95778b5455172a12d3a44dd9a565c84226a463e6d2172

    SHA512

    6558dc00e12de673717fdcf7cca95749adf5caad16dfe72151b7d95be9be0d516196c17c3357afa37f4815582d8430270085c0a6787b28210f14751641028b79

  • C:\Users\Admin\xuidah.exe

    Filesize

    312KB

    MD5

    c098b227c52832f999eb65e8fefc3c86

    SHA1

    05fef07b6d600c58601dac4adc559e585af0b3d7

    SHA256

    3ac6747dd3f97c5bfcc95778b5455172a12d3a44dd9a565c84226a463e6d2172

    SHA512

    6558dc00e12de673717fdcf7cca95749adf5caad16dfe72151b7d95be9be0d516196c17c3357afa37f4815582d8430270085c0a6787b28210f14751641028b79