Overview

overview

8

Static

static

PatchClean....0.exe

windows7_x64

8

PatchClean....0.exe

windows10_x64

8

Analysis

  • max time kernel
    141s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    16/04/2021, 03:57

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General

  • Target

    PatchCleaner_1.4.2.0.exe

  • Size

    1.3MB

  • MD5

    70d0bd7633d10c492839272c97b2544e

  • SHA1

    4da0e8c2fe1f06b13985d700fe15686a1015c3bb

  • SHA256

    6472de894c5cb6050fd80cdd893b8772aef71f8bdb5c65a0175cf7cbb90e6ec6

  • SHA512

    99d43ed2060eb6371a54f73af407fe4cc7644a93e5f856419ad0cb8769b2664139cb9097ff4be4b8dbb93f2c5da4fc90bc48eeac6fe0b3df5f8bc12428b5b5b2

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 18 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 47 IoCs
  • Modifies registry class 41 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PatchCleaner_1.4.2.0.exe
    "C:\Users\Admin\AppData\Local\Temp\PatchCleaner_1.4.2.0.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\7zS426D.tmp\setup.exe
      .\setup.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Windows\SysWOW64\msiexec.exe
        "C:\Windows\SysWOW64\msiexec.exe" -I "C:\Users\Admin\AppData\Local\Temp\7zS426D.tmp\PatchCleaner.msi"
        3⤵
        • Enumerates connected drives
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:1636
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:524
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DC17E9D44EDC5FF3A4A329465947AD24 C
      2⤵
      • Loads dropped DLL
      PID:1436
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding A55167387D9FDDDB5EEC512EA063D027
      2⤵
      • Loads dropped DLL
      PID:1164
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:644
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot12" "" "" "6d110b0a3" "0000000000000000" "000000000000055C" "0000000000000564"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:1916
    • C:\Program Files (x86)\HomeDev\PatchCleaner\PatchCleaner.exe
      "C:\Program Files (x86)\HomeDev\PatchCleaner\PatchCleaner.exe"
      1⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Modifies system certificate store
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:1064
      • C:\Windows\System32\cscript.exe
        "C:\Windows\System32\cscript.exe" //B //Nologo WMIProducts.vbs
        2⤵
        • Drops file in Program Files directory
        PID:960

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • memory/524-70-0x000007FEFBBF1000-0x000007FEFBBF3000-memory.dmp

            Filesize

            8KB

            Download

          • memory/1064-107-0x000000001B040000-0x000000001B041000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1064-94-0x00000000002D0000-0x00000000002D1000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1064-91-0x0000000000A10000-0x0000000000A12000-memory.dmp

            Filesize

            8KB

            Download

          • memory/1064-96-0x0000000000650000-0x0000000000651000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1064-92-0x0000000000A16000-0x0000000000A35000-memory.dmp

            Filesize

            124KB

            Download

          • memory/1064-99-0x000000001B740000-0x000000001B741000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1064-90-0x0000000000410000-0x0000000000411000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1064-87-0x0000000001370000-0x0000000001371000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1064-104-0x000000001AD70000-0x000000001AD71000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1064-109-0x0000000000A36000-0x0000000000A37000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1064-108-0x0000000000A35000-0x0000000000A36000-memory.dmp

            Filesize

            4KB

            Download

          • memory/1100-59-0x00000000753B1000-0x00000000753B3000-memory.dmp

            Filesize

            8KB

            Download