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Analysis

  • max time kernel
    147s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/02/2023, 02:22

General

  • Target

    0b0ff167a2abc391dff0d8277e2a22d32761a19950d161a9a7e6883df152b6c1.xls

  • Size

    218KB

  • MD5

    c0142b09ee6bdeded8a78e1118ad1b24

  • SHA1

    3c5f6dddade6670758f2b2b9bfa55aafeb0d86c3

  • SHA256

    0b0ff167a2abc391dff0d8277e2a22d32761a19950d161a9a7e6883df152b6c1

  • SHA512

    4ec2993608eedc5f2e5fd3c9e9c2739b0d8be36134b6a92ef9d864238df2e561eb62be2460e4ba7072cdf9aa1a7a8b0e094d13c03b9d5fe004af3ef2a6a2b183

  • SSDEEP

    6144:ik3hOdsylKlgxopeiBNhZF+E+W2kdAzyY+TAQXTHGUMEyP5p6f5jQmnf:HbGUMVWlbnf

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\0b0ff167a2abc391dff0d8277e2a22d32761a19950d161a9a7e6883df152b6c1.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:1492
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1740
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1736
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:876
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:560

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1492-54-0x000000002FC81000-0x000000002FC84000-memory.dmp

    Filesize

    12KB

  • memory/1492-55-0x0000000071811000-0x0000000071813000-memory.dmp

    Filesize

    8KB

  • memory/1492-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1492-57-0x00000000727FD000-0x0000000072808000-memory.dmp

    Filesize

    44KB

  • memory/1492-58-0x0000000075B41000-0x0000000075B43000-memory.dmp

    Filesize

    8KB

  • memory/1492-59-0x00000000727FD000-0x0000000072808000-memory.dmp

    Filesize

    44KB