Analysis

  • max time kernel
    169s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2022 00:23

General

  • Target

    9fd94edc753c63c3e8facfd27697d346ab3511c93e198b9207f52dee39cbe5b5.exe

  • Size

    212KB

  • MD5

    0f036d6e5960e68b24d5da15adb8072e

  • SHA1

    6077ec68c69ab5c1e11fce5e5653b901f90bb15e

  • SHA256

    9fd94edc753c63c3e8facfd27697d346ab3511c93e198b9207f52dee39cbe5b5

  • SHA512

    5263cd1890dac252beff8d05ef555b1f399383cd771eaef5c29c78a13fadf543b350ce0a903939ae7bf6265606c29571b756fe1f17a24c7c00f47342b39a6941

  • SSDEEP

    6144:iAAKwwPPGiczY09umHh7K5cUXEBwrYVHhAgY65cJ:bAbyuxY09umH45cUXEBwUVHhAgY65u

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 58 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9fd94edc753c63c3e8facfd27697d346ab3511c93e198b9207f52dee39cbe5b5.exe
    "C:\Users\Admin\AppData\Local\Temp\9fd94edc753c63c3e8facfd27697d346ab3511c93e198b9207f52dee39cbe5b5.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:4904
    • C:\Users\Admin\vuiwauk.exe
      "C:\Users\Admin\vuiwauk.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:3056

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\vuiwauk.exe

    Filesize

    212KB

    MD5

    58166970cd7259e088b6caefa6744d6a

    SHA1

    64e5208beb527fdabeede38cecbb65e1af41756c

    SHA256

    f89bb4114fb91aab1f9e2d1609d6536bc39ee0e506a1e425724149839cbb9394

    SHA512

    e8c9d31e6a9d88a93801c7ad447c13d4050767a8b81ba1a5f89002d41b91dfcd049f948c7b2a5df655f2947239de3fb3ba1c976c7817260916af528c63c1e36f

  • C:\Users\Admin\vuiwauk.exe

    Filesize

    212KB

    MD5

    58166970cd7259e088b6caefa6744d6a

    SHA1

    64e5208beb527fdabeede38cecbb65e1af41756c

    SHA256

    f89bb4114fb91aab1f9e2d1609d6536bc39ee0e506a1e425724149839cbb9394

    SHA512

    e8c9d31e6a9d88a93801c7ad447c13d4050767a8b81ba1a5f89002d41b91dfcd049f948c7b2a5df655f2947239de3fb3ba1c976c7817260916af528c63c1e36f

  • memory/3056-134-0x0000000000000000-mapping.dmp