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Analysis

  • max time kernel
    184s
  • max time network
    169s
  • 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

    ed87b60d77096d0eab29e895bfe5f092503535dd3ec56d96dc16948a67dc5cc5.xls

  • Size

    217KB

  • MD5

    cb5a66c49fdb3439090161e6cb0dc0a8

  • SHA1

    a2ae194d202a1eb0cce7952f9c18d7c0ce01baf8

  • SHA256

    ed87b60d77096d0eab29e895bfe5f092503535dd3ec56d96dc16948a67dc5cc5

  • SHA512

    977f14ec194c215f9f6a0c8995bfa08216c66b87b6e99f2cf8fc6af4b83b0d83902709650dd259dbde28c232913044f14937d18889a2ea1a54cca0a2ac9b1067

  • SSDEEP

    6144:HKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgByY+TAQXTHGUMEyP5p6f5jQmH:BbGUMVWlbH

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\ed87b60d77096d0eab29e895bfe5f092503535dd3ec56d96dc16948a67dc5cc5.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:268
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:920
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:288
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1704
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1504

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/268-54-0x000000002F2B1000-0x000000002F2B4000-memory.dmp

    Filesize

    12KB

  • memory/268-55-0x0000000070DC1000-0x0000000070DC3000-memory.dmp

    Filesize

    8KB

  • memory/268-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/268-57-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

    Filesize

    8KB

  • memory/268-58-0x0000000071DAD000-0x0000000071DB8000-memory.dmp

    Filesize

    44KB

  • memory/268-63-0x0000000071DAD000-0x0000000071DB8000-memory.dmp

    Filesize

    44KB