Analysis

  • max time kernel
    151s
  • max time network
    187s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 14:40

General

  • Target

    15114AEF4358BB9C224CF71B19F0391D07395214818D48C0E5B23898CE860F6B.xls

  • Size

    217KB

  • MD5

    fdb8633bcfc132f6013509c79a1cbeaf

  • SHA1

    32290bd2c2b64671c91905f3c79c4c54f5349fa5

  • SHA256

    15114aef4358bb9c224cf71b19f0391d07395214818d48c0e5b23898ce860f6b

  • SHA512

    4989754fd8c10269e7efe52f6f8f0ced3dca0e6f2f9ac8d7ff16daf0bacb283e06a8c9bf732bec3267e4286feda81af80298a3e6d7758fe258057d05ce94ff9d

  • SSDEEP

    6144:zKpb8rGYrMPe3q7Q0XV5xtuEsi8/dgQyY+TAQXTHGUMEyP5p6f5jQml:CbGUMVWlbl

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://designelis.com.br/wp-content/NNfbZZegI/

xlm40.dropper

http://copayucatan.com.mx/wp-includes/BqaJMpC3osZ0LRnKK/

xlm40.dropper

http://cursosweb.com.br/portal/6ozjR/

xlm40.dropper

http://db.rikaz.tech/lCx76IlkrBtEsqNFA7/

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\15114AEF4358BB9C224CF71B19F0391D07395214818D48C0E5B23898CE860F6B.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:1624
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:620
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1108
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1744
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1716

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/620-59-0x0000000000000000-mapping.dmp
  • memory/1108-61-0x0000000000000000-mapping.dmp
  • memory/1624-54-0x000000002FFA1000-0x000000002FFA4000-memory.dmp
    Filesize

    12KB

  • memory/1624-55-0x0000000071C11000-0x0000000071C13000-memory.dmp
    Filesize

    8KB

  • memory/1624-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1624-57-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB

  • memory/1624-58-0x00000000767D1000-0x00000000767D3000-memory.dmp
    Filesize

    8KB

  • memory/1716-65-0x0000000000000000-mapping.dmp
  • memory/1744-63-0x0000000000000000-mapping.dmp