Analysis

  • max time kernel
    105s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 19:21

General

  • Target

    7343c2f1c8923a7f77f71e8e4dcc9180212c13f5040fd1b513d4f26fd30bad41.xls

  • Size

    36KB

  • MD5

    4e258fc16f9f1bd37a59896f9d56beb4

  • SHA1

    af80d1c572dcf5a227dc2bfa341433967242b11f

  • SHA256

    7343c2f1c8923a7f77f71e8e4dcc9180212c13f5040fd1b513d4f26fd30bad41

  • SHA512

    5d631619c1e47cafc03de68d62f11997189ac03313c8cb79dab3d5f2a070b5e27be8aa7e71e9dae23684d8f4e726a05a64e6c10626a4e4cf033d8e5551720597

  • SSDEEP

    768:EPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJugTyRZLAHWl:gok3hbdlylKsgqopeJBWhZFGkE+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\7343c2f1c8923a7f77f71e8e4dcc9180212c13f5040fd1b513d4f26fd30bad41.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:1708
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\juJEch.txt,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1668

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1668-60-0x0000000000000000-mapping.dmp
  • memory/1708-54-0x000000002F5D1000-0x000000002F5D4000-memory.dmp
    Filesize

    12KB

  • memory/1708-55-0x0000000071B21000-0x0000000071B23000-memory.dmp
    Filesize

    8KB

  • memory/1708-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1708-57-0x0000000072B0D000-0x0000000072B18000-memory.dmp
    Filesize

    44KB

  • memory/1708-58-0x0000000075711000-0x0000000075713000-memory.dmp
    Filesize

    8KB

  • memory/1708-59-0x0000000072B0D000-0x0000000072B18000-memory.dmp
    Filesize

    44KB

  • memory/1708-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1708-63-0x0000000072B0D000-0x0000000072B18000-memory.dmp
    Filesize

    44KB