Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-10-2022 08:11

General

  • Target

    Details.lnk

  • Size

    1KB

  • MD5

    52e7e428ee73d469bab5e6917021bd03

  • SHA1

    2650ba8c6fb0def824a3fbc9ad71a4a20341c3cf

  • SHA256

    915212f323b0f97c0c3311b8a24c96bc683845c97f566fca697fd567585b13c9

  • SHA512

    bc8805691d2caff4d5e53b772c0fbb6d43c7efd383318048dc84849b70c0980fcc29cd4c486116d0a72dbc412e45f09c5c20e30c8233eef6ac25e2a40e1030a4

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:4396
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c disallowable\beached.cmd r3 2.e xe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4376
      • C:\Windows\system32\replace.exe
        replace C:\Windows\system32\regsvr32.exe C:\Users\Admin\AppData\Local\Temp /A
        3⤵
          PID:2948
        • C:\Users\Admin\AppData\Local\Temp\regsvr32.exe
          regsvr32.exe disallowable\lathered.dat
          3⤵
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1096
          • C:\Windows\SysWOW64\regsvr32.exe
            disallowable\lathered.dat
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:5076
            • C:\Windows\SysWOW64\wermgr.exe
              C:\Windows\SysWOW64\wermgr.exe
              5⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:5040

    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/1096-134-0x0000000000000000-mapping.dmp

    • memory/2948-133-0x0000000000000000-mapping.dmp

    • memory/4376-132-0x0000000000000000-mapping.dmp

    • memory/5040-140-0x0000000000000000-mapping.dmp

    • memory/5040-142-0x00000000012D0000-0x00000000012F9000-memory.dmp

      Filesize

      164KB

    • memory/5040-143-0x00000000012D0000-0x00000000012F9000-memory.dmp

      Filesize

      164KB

    • memory/5076-137-0x0000000000000000-mapping.dmp

    • memory/5076-138-0x00000000006A0000-0x00000000006CB000-memory.dmp

      Filesize

      172KB

    • memory/5076-139-0x00000000007A0000-0x00000000007C9000-memory.dmp

      Filesize

      164KB

    • memory/5076-141-0x00000000007A0000-0x00000000007C9000-memory.dmp

      Filesize

      164KB