Analysis

  • max time kernel
    197s
  • max time network
    205s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 21:14

General

  • Target

    c8dca94f7f8b5f7ce7ce53314e8c0006a28b5123460552b708f3a08bea12486b.exe

  • Size

    400KB

  • MD5

    32048b9e1b6d5002e5260b4cd63de46a

  • SHA1

    2c1d2659598cc39eca6e28a43325b802a57d467b

  • SHA256

    c8dca94f7f8b5f7ce7ce53314e8c0006a28b5123460552b708f3a08bea12486b

  • SHA512

    b01b18ba715f423d9c200bd3bc452da647bd9dcbd90564ac5144ffd667892660aeaa489d0f2ef3e1493e005105311d34e1a557f37ef1e06221c2add40944df49

  • SSDEEP

    6144:xCTPgrnq0/FniJi6uTJKvePPMqLckUet72FwBI+AFdb8MucbSVtRNOcamDGT8eWj:xCTPgrnZiJiAaMVkUet7EwBI+APuALDc

Score
10/10

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Disables use of System Restore points 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 48 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Drops autorun.inf file 1 TTPs 47 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Modifies Control Panel 3 IoCs
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 50 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c8dca94f7f8b5f7ce7ce53314e8c0006a28b5123460552b708f3a08bea12486b.exe
    "C:\Users\Admin\AppData\Local\Temp\c8dca94f7f8b5f7ce7ce53314e8c0006a28b5123460552b708f3a08bea12486b.exe"
    1⤵
    • Modifies system executable filetype association
    • Modifies visibility of file extensions in Explorer
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops autorun.inf file
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1844
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1844 -s 880
      2⤵
      • Program crash
      PID:716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1844 -s 880
      2⤵
      • Program crash
      PID:2440
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 1844 -ip 1844
    1⤵
      PID:2084

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/716-132-0x0000000000000000-mapping.dmp