Analysis

  • max time kernel
    152s
  • 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
    30-10-2022 20:24

General

  • Target

    5020d5608e697b663c3d6850cf16f6e457363d28aeed342ffb82c77b5edf2263.exe

  • Size

    132KB

  • MD5

    a253a0522e8bce1b160197a97088ce10

  • SHA1

    b7ccbcf6e1d2395f31a17c8e33af5d7d1d6ddb47

  • SHA256

    5020d5608e697b663c3d6850cf16f6e457363d28aeed342ffb82c77b5edf2263

  • SHA512

    fd20bae1f0c83d340b905de2190477077ab1f0aaad87e92920e5052320be9bfc8bfde44da51b28856d6fe77fe7c232b92a8b2bff06d1dab56b8941bdf61cfbb5

  • SSDEEP

    1536:vy7T/T2O6rM2UElBkIvIwDyQ5Iwz/H6F9kmYTRdfuLXwo7JaSU:2T/T2O63UElBknweQz/HhlbfmwQG

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\5020d5608e697b663c3d6850cf16f6e457363d28aeed342ffb82c77b5edf2263.exe
    "C:\Users\Admin\AppData\Local\Temp\5020d5608e697b663c3d6850cf16f6e457363d28aeed342ffb82c77b5edf2263.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:3108
    • C:\Users\Admin\riubey.exe
      "C:\Users\Admin\riubey.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:4312

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\riubey.exe

    Filesize

    132KB

    MD5

    c8c9095ef83f3e2284eafbe8c5bbacbd

    SHA1

    90cf83e03c8d1cdf524f8fd23dc352f5ae1aa2b9

    SHA256

    46a37224dba2e74d7af8b476ce1e33b337e16c7e65c58a0ee43765194e6aa894

    SHA512

    83a70450fd63ac750a6698cdb690bb51e3f8e34bc1115ab41988e130cf0cbd579d991a5792f7c0ffbbaa0afe44172fc15b50e70e0829f6df474d4850cb5550a7

  • C:\Users\Admin\riubey.exe

    Filesize

    132KB

    MD5

    c8c9095ef83f3e2284eafbe8c5bbacbd

    SHA1

    90cf83e03c8d1cdf524f8fd23dc352f5ae1aa2b9

    SHA256

    46a37224dba2e74d7af8b476ce1e33b337e16c7e65c58a0ee43765194e6aa894

    SHA512

    83a70450fd63ac750a6698cdb690bb51e3f8e34bc1115ab41988e130cf0cbd579d991a5792f7c0ffbbaa0afe44172fc15b50e70e0829f6df474d4850cb5550a7