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Analysis

  • max time kernel
    206s
  • max time network
    207s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 09:16

General

  • Target

    dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe

  • Size

    312KB

  • MD5

    225781f7bf59c7f0bcd643a9984bdee3

  • SHA1

    034ceb777791bb3764908f8317ff29464b1e0701

  • SHA256

    dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b

  • SHA512

    4e4e40940277b039d4fe0fdfbaa4388b9ffea7272a5f781308a29a6d5cdfba5034b7fab6b4e4c6928a33a75f49c4fbb52e093a2a0d83f0eb36cff42dd989e66b

  • SSDEEP

    6144:Bwc+PaJXYd9hxr51WxWHdzvprYZPpYUQ3m1zBdP7F1:/XYd9hxrrYWhvpEZPKr3m1z3Z1

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 51 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\dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.exe
    "C:\Users\Admin\AppData\Local\Temp\dc2cd815e4db618aa84ceae71a725c8d3929cd541f36997803b7884fa93ed12b.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:4688
    • C:\Users\Admin\rnmay.exe
      "C:\Users\Admin\rnmay.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:4832

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\rnmay.exe

    Filesize

    312KB

    MD5

    d4e9a91b95c7febfae3680c5a8fac1a7

    SHA1

    07463b660ab42a890f97429d3463f90339631bad

    SHA256

    3b70d68c17d31270cad27d8a19ba01f41a24c3d08ab682a63f48c6510e4ab2a0

    SHA512

    79008217f869aa5f0304bd2036a756cd95599d6be15f1d8d313168d2550ffc47ad49ecea520fb19236d23df8a59124b4765548890d8aa4c3cc7d143a35223176

  • C:\Users\Admin\rnmay.exe

    Filesize

    312KB

    MD5

    d4e9a91b95c7febfae3680c5a8fac1a7

    SHA1

    07463b660ab42a890f97429d3463f90339631bad

    SHA256

    3b70d68c17d31270cad27d8a19ba01f41a24c3d08ab682a63f48c6510e4ab2a0

    SHA512

    79008217f869aa5f0304bd2036a756cd95599d6be15f1d8d313168d2550ffc47ad49ecea520fb19236d23df8a59124b4765548890d8aa4c3cc7d143a35223176