Analysis

  • max time kernel
    117s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19/02/2022, 22:59

General

  • Target
    SecuriteInfo.com.Exploit.Siggen3.4244.9663.xls
  • Size 33KB
  • Sample220219-2ydfdsebg8
  • SHA256 2a44c06f28657c6a4d854bab5a7aa8225320c8dbc54b5bdbea20db9ea667f4e1
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    https://markens.online/1.php

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Exploit.Siggen3.4244.9663.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1584
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\HHU.txt,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1160

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1160-58-0x0000000075D61000-0x0000000075D63000-memory.dmp

        memory/1584-54-0x000000002F7C1000-0x000000002F7C4000-memory.dmp

        memory/1584-55-0x0000000071871000-0x0000000071873000-memory.dmp

        memory/1584-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1584-57-0x000000007285D000-0x0000000072868000-memory.dmp

        memory/1584-59-0x000000005FFF0000-0x0000000060000000-memory.dmp