Analysis

  • max time kernel
    4294182s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    26/02/2022, 22:11

General

  • Target
    generic download.xls
  • Size 36KB
  • Sample220226-13xt6achap
  • SHA256 2b33598b4c6bea00c8a9bc7b7478af63c18fe046a9050ff74fb58f15e14b6f67
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    https://syracuse.best/wp-data.php

  • xlm40.dropper

    https://skill.fashion/wp-data.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\generic download.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:1948
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\rHB9oh.txt,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:2004

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1948-54-0x000000002FB91000-0x000000002FB94000-memory.dmp

        memory/1948-55-0x00000000714D1000-0x00000000714D3000-memory.dmp

        memory/1948-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1948-57-0x00000000724BD000-0x00000000724C8000-memory.dmp

        memory/1948-59-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/2004-58-0x00000000759B1000-0x00000000759B3000-memory.dmp