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Analysis

  • max time kernel
    120s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    31/12/2023, 02:59

General

  • Target

    257ef29694b6cacae069bd75949c2188.xls

  • Size

    36KB

  • MD5

    257ef29694b6cacae069bd75949c2188

  • SHA1

    249d7ba7e0305068775a1384a655d63783cff73b

  • SHA256

    5231dfe143f97d1bd4767f950f83f2ede4ce30369d3be75c16c39f178d726049

  • SHA512

    7b90a8d1ef3f7918008bd9d503c381c385c68f41d766a34786c4ec131dbc34a53f686433245a6104a17119e49dffaa68ae66ccb30afdf6c67a3b11f519c2e6e3

  • SSDEEP

    768:0PqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJlnShuNU4h3H0X:wok3hbdlylKsgqopeJBWhZFGkE+cL2NT

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://markens.online/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\257ef29694b6cacae069bd75949c2188.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:1736
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\UUN.txt,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:3064

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1736-1-0x0000000072A8D000-0x0000000072A98000-memory.dmp

    Filesize

    44KB

  • memory/1736-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1736-2-0x0000000072A8D000-0x0000000072A98000-memory.dmp

    Filesize

    44KB

  • memory/1736-3-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1736-4-0x0000000072A8D000-0x0000000072A98000-memory.dmp

    Filesize

    44KB