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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • 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, 01:23

General

  • Target

    Details.lnk

  • Size

    1KB

  • MD5

    f3c9192e747c7b3b0b861644ccf147ae

  • SHA1

    37db46dc65a31dc8d0f2945ad9b1430b31d486e4

  • SHA256

    d85957d2fc60de0204d94475a4ce85691e4de002e08f55809861a48f5ea58c14

  • SHA512

    0692139ff36b3cdb2ef3971fea1e1bb57f83df8ba28bec6e947bba1cd1ed820b5fbd174f7a62a1fe118e6a168cccd2fc56db1cfc733f9afa397194ed0cdec1da

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\Details.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:896
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c disallowable\leggings.cmd r3 2.e xe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:980
      • C:\Windows\system32\replace.exe
        replace C:\Windows\system32\regsvr32.exe C:\Users\Admin\AppData\Local\Temp /A
        3⤵
          PID:5020
        • C:\Users\Admin\AppData\Local\Temp\regsvr32.exe
          regsvr32.exe disallowable\lavatory.dat
          3⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:2240
          • C:\Windows\SysWOW64\regsvr32.exe
            disallowable\lavatory.dat
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:2976
            • C:\Windows\SysWOW64\wermgr.exe
              C:\Windows\SysWOW64\wermgr.exe
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:2168

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\regsvr32.exe

      Filesize

      24KB

      MD5

      b0c2fa35d14a9fad919e99d9d75e1b9e

      SHA1

      8d7c2fd354363daee63e8f591ec52fa5d0e23f6f

      SHA256

      022cb167a29a32dae848be91aef721c74f1975af151807dafcc5ed832db246b7

      SHA512

      a6155e42b605425914d1bf745d9b2b5ed57976e161384731c6821a1f8fa2bc3207a863ae45d6ad371ac82733b72bb024204498baa4fb38ad46c6d7bc52e5a022

    • C:\Users\Admin\AppData\Local\Temp\regsvr32.exe

      Filesize

      24KB

      MD5

      b0c2fa35d14a9fad919e99d9d75e1b9e

      SHA1

      8d7c2fd354363daee63e8f591ec52fa5d0e23f6f

      SHA256

      022cb167a29a32dae848be91aef721c74f1975af151807dafcc5ed832db246b7

      SHA512

      a6155e42b605425914d1bf745d9b2b5ed57976e161384731c6821a1f8fa2bc3207a863ae45d6ad371ac82733b72bb024204498baa4fb38ad46c6d7bc52e5a022

    • memory/2168-142-0x0000000000510000-0x0000000000539000-memory.dmp

      Filesize

      164KB

    • memory/2168-143-0x0000000000510000-0x0000000000539000-memory.dmp

      Filesize

      164KB

    • memory/2976-138-0x0000000000710000-0x000000000073B000-memory.dmp

      Filesize

      172KB

    • memory/2976-139-0x0000000000750000-0x0000000000779000-memory.dmp

      Filesize

      164KB

    • memory/2976-141-0x0000000000750000-0x0000000000779000-memory.dmp

      Filesize

      164KB