Analysis

  • max time kernel
    145s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    18-11-2022 03:14

General

  • Target

    DATA_1980.xls

  • Size

    255KB

  • MD5

    4a39482f8109165a29e5f2982c57a895

  • SHA1

    1bd892084eb45b67781ec482c9e4e5e860241b32

  • SHA256

    3809cb404f536733812960e2c738de5fded540678064ff026583e48e4f7b3025

  • SHA512

    d7e8f5361a9e9b82b2f51dd62e570659719ad34079db8d355e852760cd97974efc74315ff0cee5e611fa8b5528468f34b2dbf9205e40371a89b97752c7e77261

  • SSDEEP

    6144:6Kpb8rGYrMPe3q7Q0XV5xtuEsi8/dgUNiwrfx9rNFMMrttRzV5Dz3UxqC8LUcSd:YNbDjP9XH5XIqZLnSd

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://demarsoft.com/ALPHAINSTALLS.US/lTsjpA6/

xlm40.dropper

http://clockworktradeservices.com/wp-admin/uFRWXkuTnDAbQtIO/

xlm40.dropper

http://cloudxml.com.br/L45R4qJJFH/ESXAIhm/

xlm40.dropper

https://copunupo.ac.zm/cgi-bin/bNoAgU9/

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\DATA_1980.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:1096
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv1.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:700
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv2.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1512
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv3.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1508
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\oxnv4.ooccxx
      2⤵
      • Process spawned unexpected child process
      PID:1812

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/700-59-0x0000000000000000-mapping.dmp
  • memory/1096-54-0x000000002FA61000-0x000000002FA64000-memory.dmp
    Filesize

    12KB

  • memory/1096-55-0x0000000071C11000-0x0000000071C13000-memory.dmp
    Filesize

    8KB

  • memory/1096-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1096-57-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB

  • memory/1096-58-0x00000000767D1000-0x00000000767D3000-memory.dmp
    Filesize

    8KB

  • memory/1096-61-0x0000000072BFD000-0x0000000072C08000-memory.dmp
    Filesize

    44KB

  • memory/1508-64-0x0000000000000000-mapping.dmp
  • memory/1512-62-0x0000000000000000-mapping.dmp
  • memory/1812-66-0x0000000000000000-mapping.dmp