Analysis

  • max time kernel
    147s
  • max time network
    96s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    03/01/2023, 03:26

General

  • Target

    27a65553a3560c4e36589cc0da79c8713db4ab009ce4e687b51b302c9d5480ac.xls

  • Size

    255KB

  • MD5

    0d1ea34c0423845842d2411dd5084ae5

  • SHA1

    731d92101270c9dbff7b622f0c70eed56a7ddab5

  • SHA256

    27a65553a3560c4e36589cc0da79c8713db4ab009ce4e687b51b302c9d5480ac

  • SHA512

    8b9d2554a8b445412e55f3234688f6c81c92ed874b0fdf65b8c6c55e451144b2c84f4526309bd43b3f939bb118f5e242f6f3fbc673de84477696febfc2914047

  • SSDEEP

    6144:JKpb8rGYrMPe3q7Q0XV5xtuEsi8/dggNiwrfx9rNFMMrttRzV5Dz3UxqC8LUcSq:nNbDjP9XH5XIqZLnSq

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://cpcwiki.de/images/rirOpdztUEfG7WJ/

xlm40.dropper

https://www.conceptagency.net/css/zXC/

xlm40.dropper

http://a.angel-tn.idv.tw/web_images/aa7fEDOPvT2F1i/

xlm40.dropper

http://www.atashelement.ir/qds-seo-url-autofill/tmSetsq0wxsmXdA/

Signatures

  • Process spawned unexpected child process 4 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 28 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\27a65553a3560c4e36589cc0da79c8713db4ab009ce4e687b51b302c9d5480ac.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:1464
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1880
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:824
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:316
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1700

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1464-54-0x000000002FDD1000-0x000000002FDD4000-memory.dmp

          Filesize

          12KB

        • memory/1464-55-0x00000000718A1000-0x00000000718A3000-memory.dmp

          Filesize

          8KB

        • memory/1464-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1464-57-0x000000007288D000-0x0000000072898000-memory.dmp

          Filesize

          44KB

        • memory/1464-58-0x0000000076581000-0x0000000076583000-memory.dmp

          Filesize

          8KB

        • memory/1464-59-0x000000007288D000-0x0000000072898000-memory.dmp

          Filesize

          44KB