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Analysis

  • max time kernel
    152s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 23:38

General

  • Target

    cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe

  • Size

    224KB

  • MD5

    8fa633ec67995fb01b2b77fcd2cd8efd

  • SHA1

    3933d22e37e478b7833c55f49996fa88937b9331

  • SHA256

    cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b

  • SHA512

    d53b0b145ad72448779e358967c6ef491625742464e394e7fe5a972a8b467e19a598a43761cf51f3d7b2a42b4626de9625ba0c19712ce50ad97a60d3f7cb3eb5

  • SSDEEP

    6144:yDt4/OjgH82mi0y5+jx+FmByxyHaq+3VPokA+nbibwm:yJmO882mi0y5+jx+FmByxyHaq+3VPo73

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\cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.exe
    "C:\Users\Admin\AppData\Local\Temp\cc1a6c835eb957f98034d10b43918c5f3a4ca30bec4aaa70fae740ca74c1549b.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:3228
    • C:\Users\Admin\voufu.exe
      "C:\Users\Admin\voufu.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:4180

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\voufu.exe

    Filesize

    224KB

    MD5

    34e06b0f605c20f0eaa42137bc547047

    SHA1

    1470dcdf2ea014d9926ab2295dd3b7cf8c3b36ac

    SHA256

    403931eea9a8cea9355870d3c7bd4ffd6535663a8f7d46ea23559876e027849b

    SHA512

    b8d1e15eb4a0d273f854650f447f211662b515cc9f62882dbd7b9cb9b6cd3bc9497734fe541fd787736c5c2dc31aa831fd926bf3bb54e6489e0877a6c7fe0f26

  • C:\Users\Admin\voufu.exe

    Filesize

    224KB

    MD5

    34e06b0f605c20f0eaa42137bc547047

    SHA1

    1470dcdf2ea014d9926ab2295dd3b7cf8c3b36ac

    SHA256

    403931eea9a8cea9355870d3c7bd4ffd6535663a8f7d46ea23559876e027849b

    SHA512

    b8d1e15eb4a0d273f854650f447f211662b515cc9f62882dbd7b9cb9b6cd3bc9497734fe541fd787736c5c2dc31aa831fd926bf3bb54e6489e0877a6c7fe0f26