Analysis

  • max time kernel
    103s
  • max time network
    58s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 19:22

General

  • Target

    104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e.xls

  • Size

    36KB

  • MD5

    25dd382ee6cc4750d2b64bad7462b3c6

  • SHA1

    309191c3dd43fa9c1038d8946b60692619b18c2f

  • SHA256

    104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e

  • SHA512

    cedec53b7725427e6d921303af0b4bbd20b4e63801b7f44fce4b71a7e3f013c2a7a5094d9f5f23428c6282fa143e7eda7657ef71663392df35b2c9891cf4db9d

  • SSDEEP

    768:GPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJ62iu8PM6SbqWmg:6ok3hbdlylKsgqopeJBWhZFGkE+cL2Nk

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\104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e.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:1760
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\OWOK.txt,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:292

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/292-60-0x0000000000000000-mapping.dmp
  • memory/1760-54-0x000000002FB31000-0x000000002FB34000-memory.dmp
    Filesize

    12KB

  • memory/1760-55-0x0000000070F81000-0x0000000070F83000-memory.dmp
    Filesize

    8KB

  • memory/1760-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1760-57-0x0000000075141000-0x0000000075143000-memory.dmp
    Filesize

    8KB

  • memory/1760-58-0x0000000071F6D000-0x0000000071F78000-memory.dmp
    Filesize

    44KB

  • memory/1760-59-0x0000000071F6D000-0x0000000071F78000-memory.dmp
    Filesize

    44KB

  • memory/1760-62-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1760-63-0x0000000071F6D000-0x0000000071F78000-memory.dmp
    Filesize

    44KB