Analysis

  • max time kernel
    62s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-01-2023 10:38

General

  • Target

    87c3545310157886ea652afb97e0dfa9e7d09a6392663710091f20f53757da4a.xls

  • Size

    91KB

  • MD5

    eb6e88a5ea61dd9dde6e08f466051c52

  • SHA1

    3e4b742d8e9829687c602de589629956d070393f

  • SHA256

    87c3545310157886ea652afb97e0dfa9e7d09a6392663710091f20f53757da4a

  • SHA512

    19681de8a7674b97a81c96cdadec6bb12e588a2e788ff30db39ef574818e189c701c49512bbc2f6156131f10742f7170a1912f1bae9b39f52ddfb71df183492c

  • SSDEEP

    1536:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgHbCXuZH4gb4CEn9J4ZPX5:vKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgl

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://datie-tw.com/img/O8G0RDZj7MYCuJyPoP/

xlm40.dropper

http://sbm.xinmoshiwang.com/upload/VaOfWEb3pW76UO/

xlm40.dropper

https://copunupo.ac.zm/cgi-bin/WFFcGx/

xlm40.dropper

http://ly.yjlianyi.top/wp-admin/4cChao/

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\87c3545310157886ea652afb97e0dfa9e7d09a6392663710091f20f53757da4a.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:1748
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:1924
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:744
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:1812
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
      2⤵
      • Process spawned unexpected child process
      PID:2008

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/744-61-0x0000000000000000-mapping.dmp

  • memory/1748-54-0x000000002FC81000-0x000000002FC84000-memory.dmp

    Filesize

    12KB

  • memory/1748-55-0x0000000071111000-0x0000000071113000-memory.dmp

    Filesize

    8KB

  • memory/1748-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1748-57-0x00000000720FD000-0x0000000072108000-memory.dmp

    Filesize

    44KB

  • memory/1748-58-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

    Filesize

    8KB

  • memory/1748-67-0x00000000720FD000-0x0000000072108000-memory.dmp

    Filesize

    44KB

  • memory/1812-63-0x0000000000000000-mapping.dmp

  • memory/1924-59-0x0000000000000000-mapping.dmp

  • memory/2008-65-0x0000000000000000-mapping.dmp