Analysis

  • max time kernel
    64s
  • max time network
    112s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14-09-2022 10:49

General

  • Target

    2c6de793afa51e0f3a81d3c517b4d3babe74a05a.xls

  • Size

    205KB

  • MD5

    18f5c436d4f62ae1398c10dbcbdf401d

  • SHA1

    2c6de793afa51e0f3a81d3c517b4d3babe74a05a

  • SHA256

    833d437da7afdaa0195adb30f8318a2256a827744398d7fe4d026f3bfddd2137

  • SHA512

    e263b51dd516e6fc2a0746c4327455f1a8fa986f69999daf16a4ee4442b35c63ff3f8d300f24f3998b7306515897855e592ea4d01f66fab5f9ba06c071ddf1fc

  • SSDEEP

    6144:Lk3hbdlylKsgqopeJBWhZFVE+W2NdAgl8NiiLlUNe65x3Z1YQpeX+3Mt:qGI7JhbYQpA+8t

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://assemble.sg/wp-frunt.php

xlm40.dropper

https://gartnerkvartalet.no/wp-content/themes/calliope/wp-front.php

Signatures

  • Process spawned unexpected child process 2 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 11 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\2c6de793afa51e0f3a81d3c517b4d3babe74a05a.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:904
    • C:\Windows\SysWOW64\reg.exe
      "C:\Windows\system32\reg.exe" EXPORT HKCU\Software\Microsoft\Office\14.0\Excel\Security c:\users\public\1.reg /y
      2⤵
      • Process spawned unexpected child process
      PID:2032
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" c:\Users\Public\c6wga5ef.html,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1780

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \??\c:\users\public\1.reg

    Filesize

    4KB

    MD5

    53f9388101315f80cd64bc8a4aa7021d

    SHA1

    611f766469d142353c3d533f125e841d21b1c091

    SHA256

    2301b036c4e2882ad07dabcc25e0d63ac02d9f992899e2c140c81df3a36cf701

    SHA512

    aaed12f6cc739dfec08d114a0e895ec5f8f843fc46330757f1283992891d1a8ed438d0084532927831f550190ea8fb77a6b1d55ff9778077bc0a8becce43439f

  • memory/904-54-0x000000002F3B1000-0x000000002F3B4000-memory.dmp

    Filesize

    12KB

  • memory/904-55-0x0000000071511000-0x0000000071513000-memory.dmp

    Filesize

    8KB

  • memory/904-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/904-57-0x00000000724FD000-0x0000000072508000-memory.dmp

    Filesize

    44KB

  • memory/904-58-0x0000000076071000-0x0000000076073000-memory.dmp

    Filesize

    8KB

  • memory/904-61-0x00000000724FD000-0x0000000072508000-memory.dmp

    Filesize

    44KB