Analysis

  • max time kernel
    148s
  • max time network
    108s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    11-02-2023 02:22

General

  • Target

    32bec158a40710d2c0aabbb77474d2d07cf8bebee15006f3938cebaa85e0f1e7.xls

  • Size

    218KB

  • MD5

    6576847f7deb2aeedd92a283b932a940

  • SHA1

    6c5ba9c94ba71089fc9603f9cbad7e74c4ca6079

  • SHA256

    32bec158a40710d2c0aabbb77474d2d07cf8bebee15006f3938cebaa85e0f1e7

  • SHA512

    3e33703a6663ef13d85079794aa6ac49e5c8eaf65052af744be1b3428053d2445b35b3923a8a6b8b0ff1c14172eb80845f37024e10554ae412d540f38fd1a8a5

  • SSDEEP

    6144:2k3hOdsylKlgxopeiBNhZF+E+W2kdApyY+TAQXTHGUMEyP5p6f5jQmSo:NbGUMVWlbSo

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://ftp.agir-santeinternationale.com/doctors/KAacngW97n4ApzVBDdGy/

xlm40.dropper

http://www.vinyz.com/admin3693/BDFFgAZ6zBRumcUSG/

xlm40.dropper

http://ly.yjlianyi.top/wp-admin/NRAdJ/

xlm40.dropper

http://www.muyehuayi.com/cmp/Vtm2m7z88g/

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\32bec158a40710d2c0aabbb77474d2d07cf8bebee15006f3938cebaa85e0f1e7.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:940
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1572
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1528
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1624
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1676

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/940-54-0x000000002F031000-0x000000002F034000-memory.dmp
    Filesize

    12KB

  • memory/940-55-0x0000000071CD1000-0x0000000071CD3000-memory.dmp
    Filesize

    8KB

  • memory/940-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/940-57-0x0000000072CBD000-0x0000000072CC8000-memory.dmp
    Filesize

    44KB

  • memory/940-58-0x0000000076411000-0x0000000076413000-memory.dmp
    Filesize

    8KB

  • memory/940-59-0x0000000072CBD000-0x0000000072CC8000-memory.dmp
    Filesize

    44KB

  • memory/1528-62-0x0000000000000000-mapping.dmp
  • memory/1572-60-0x0000000000000000-mapping.dmp
  • memory/1624-64-0x0000000000000000-mapping.dmp
  • memory/1676-66-0x0000000000000000-mapping.dmp