Analysis

  • max time kernel
    144s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-02-2024 10:29

General

  • Target

    aba9f1ac6372aa43ba4fcf0bbfb805d7.xlsm

  • Size

    85KB

  • MD5

    aba9f1ac6372aa43ba4fcf0bbfb805d7

  • SHA1

    a3fe19f739d576f30bad23431025d57ade19071c

  • SHA256

    857f303ab9359c6f06e08842888c5ce19fc9d2b51b0ebe3dfb5e4d127208088c

  • SHA512

    4851dca9f371d7f3673fe64392acc9d07864706266fc884492d357a1235fbc4e21d945299c98077ebebc62359566a9e8bb8dd05e0c3f842690ae684b30791117

  • SSDEEP

    1536:2DhVxmyaa15pRxrDK341rDmf5TTlMVGoIahaDHTU6hryF70liWWGH0AeW/:mVIyaa1/rDSOmf92sTU2yF70liWW20k

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://162.248.227.39/first.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 3 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\aba9f1ac6372aa43ba4fcf0bbfb805d7.xlsm
    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:1196
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\yeieowur.dll
      2⤵
      • Process spawned unexpected child process
      PID:2968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1196-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1196-1-0x000000007249D000-0x00000000724A8000-memory.dmp

    Filesize

    44KB

  • memory/1196-2-0x000000007249D000-0x00000000724A8000-memory.dmp

    Filesize

    44KB