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Analysis

  • max time kernel
    101s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/10/2022, 18:19

General

  • Target

    73fa2f8044dab212576cad258fd55f6de051a4fac3f2b6af744cf9d09fa9a510.exe

  • Size

    304KB

  • MD5

    0b2e7c2853f6505c660518dac28a0850

  • SHA1

    08962cffeb13dcf08dd4c98180e333667d8d55d2

  • SHA256

    73fa2f8044dab212576cad258fd55f6de051a4fac3f2b6af744cf9d09fa9a510

  • SHA512

    63a332314736621cc24d871a26909cf006d520dbf43942328859661beedde6fd4cdc50e17418e7db70c8c07a5d25d3817a25986dcf3f2cb75c7eada4d937baca

  • SSDEEP

    3072:caPCzZRFjFBbVJsnCRcC3xo8ozYH/LSsB4pAnNnfwo7A3sEnYQCASCPepFq:caPuZLfsnHQIz9AnNnolrCAfPepF

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 29 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\73fa2f8044dab212576cad258fd55f6de051a4fac3f2b6af744cf9d09fa9a510.exe
    "C:\Users\Admin\AppData\Local\Temp\73fa2f8044dab212576cad258fd55f6de051a4fac3f2b6af744cf9d09fa9a510.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3924
    • C:\Users\Admin\geaob.exe
      "C:\Users\Admin\geaob.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:2644
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2628

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\geaob.exe

      Filesize

      304KB

      MD5

      0b2e7c2853f6505c660518dac28a0850

      SHA1

      08962cffeb13dcf08dd4c98180e333667d8d55d2

      SHA256

      73fa2f8044dab212576cad258fd55f6de051a4fac3f2b6af744cf9d09fa9a510

      SHA512

      63a332314736621cc24d871a26909cf006d520dbf43942328859661beedde6fd4cdc50e17418e7db70c8c07a5d25d3817a25986dcf3f2cb75c7eada4d937baca

    • C:\Users\Admin\geaob.exe

      Filesize

      304KB

      MD5

      0b2e7c2853f6505c660518dac28a0850

      SHA1

      08962cffeb13dcf08dd4c98180e333667d8d55d2

      SHA256

      73fa2f8044dab212576cad258fd55f6de051a4fac3f2b6af744cf9d09fa9a510

      SHA512

      63a332314736621cc24d871a26909cf006d520dbf43942328859661beedde6fd4cdc50e17418e7db70c8c07a5d25d3817a25986dcf3f2cb75c7eada4d937baca