Analysis

  • max time kernel
    145s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2022 06:08

General

  • Target

    5e963c3e5c6a53e2e18f3140ce1d4e98c7a1241801b4ad2a8798ad6844856dc6.exe

  • Size

    55KB

  • MD5

    8002f1ccf1a6e4dcabca1879db81a04d

  • SHA1

    00b7cabf9ab4153ed26fba9ee1be95bc45c99383

  • SHA256

    5e963c3e5c6a53e2e18f3140ce1d4e98c7a1241801b4ad2a8798ad6844856dc6

  • SHA512

    252083e4e69da78e70180c0c60df112a6f3cc54bbf67b5c4be1f4e7bc2904b56a106d54cdb366c1e1b94499e7e82fbe29ec4a3f903975ef4e4f991900a8cd87f

  • SSDEEP

    1536:V3cpyORJLuB4P4AJJv4Romu/W6yI4ZUjR:V3c1fP4AJJv45Z6yEl

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 9 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e963c3e5c6a53e2e18f3140ce1d4e98c7a1241801b4ad2a8798ad6844856dc6.exe
    "C:\Users\Admin\AppData\Local\Temp\5e963c3e5c6a53e2e18f3140ce1d4e98c7a1241801b4ad2a8798ad6844856dc6.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Checks computer location settings
    • Loads dropped DLL
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2232
    • C:\Windows\SysWOW64\attrib.exe
      "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft\ie13\Internat Explorer" +s
      2⤵
      • Drops file in Program Files directory
      • Views/modifies file attributes
      PID:4260
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp.bat" "
      2⤵
        PID:2276

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\nsm4C1E.tmp\System.dll

      Filesize

      11KB

      MD5

      00a0194c20ee912257df53bfe258ee4a

      SHA1

      d7b4e319bc5119024690dc8230b9cc919b1b86b2

      SHA256

      dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3

      SHA512

      3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667

    • C:\Users\Admin\AppData\Local\Temp\tmp.bat

      Filesize

      250B

      MD5

      902d43d499c13acbe8aa2097e21b8242

      SHA1

      872db50d337723b4d20979edcda41d3aa15315b5

      SHA256

      8263d3a6dc578e1cce5dae9ec32c8b8b153a6a317703cd53a1adb2a7f06ff80a

      SHA512

      f058c68265511cccf31fb5a52a06f24daa764f272aa15e230b8de7fc0c491f9a5ca25ae039f98730b6551aee453183ec7546aa8c09996bf24d435359d6d6195c

    • memory/2276-134-0x0000000000000000-mapping.dmp

    • memory/4260-132-0x0000000000000000-mapping.dmp