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Analysis

  • max time kernel
    154s
  • max time network
    173s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/02/2023, 02:22

General

  • Target

    a9c2f27b0666affc9f3cb78b5d662606cd0cb1be1c1dafd2c260ae229953b7c0.xls

  • Size

    218KB

  • MD5

    8fbaa780c9336ea8887d8949ed114799

  • SHA1

    726c148c897365be9f482d0dc1fcad6929461acc

  • SHA256

    a9c2f27b0666affc9f3cb78b5d662606cd0cb1be1c1dafd2c260ae229953b7c0

  • SHA512

    53dd882d04aaeded21d57856e9940ad71ce71c409c45d27a8ece5b72e13f5f52386bef984c83edcea62df772ecfba59fcf7729bdb944a4a3d209ba20430353d5

  • SSDEEP

    6144:ik3hOdsylKlgxopeiBNhZF+E+W2kdALyY+TAQXTHGUMEyP5p6f5jQmqi:PbGUMVWlbqi

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.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a9c2f27b0666affc9f3cb78b5d662606cd0cb1be1c1dafd2c260ae229953b7c0.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4060
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:3096
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:972
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:2252
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:3860

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/4060-135-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB

  • memory/4060-137-0x00007FFE74320000-0x00007FFE74330000-memory.dmp

    Filesize

    64KB

  • memory/4060-138-0x00007FFE74320000-0x00007FFE74330000-memory.dmp

    Filesize

    64KB

  • memory/4060-136-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB

  • memory/4060-132-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB

  • memory/4060-133-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB

  • memory/4060-134-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB

  • memory/4060-144-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB

  • memory/4060-145-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB

  • memory/4060-146-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB

  • memory/4060-147-0x00007FFE76630000-0x00007FFE76640000-memory.dmp

    Filesize

    64KB