Analysis

  • max time kernel
    150s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    21-10-2021 21:38

General

  • Target

    Document-138395542.xls

  • Size

    537KB

  • MD5

    88d4946e37afc60d707b8182f050a2df

  • SHA1

    afe97738f786f99a077cf535c1e3770e05b56887

  • SHA256

    ab30095a5e8e8df5537d543ce27fc11ad889e5949a107816759f7aa6dae1903f

  • SHA512

    bcf903ee7907ecdbf57e65f87ffb696ed1fa49bfba41d6a8253f89441a9d5494bdde9e17076f7d77bee38da74f1cd02bbc548f12aa54874802f963c84b993d2f

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://190.14.37.244/44490.9823697917.dat

xlm40.dropper

http://194.36.191.35/44490.9823697917.dat

xlm40.dropper

http://178.23.190.8/44490.9823697917.dat

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Office loads VBA resources, possible macro or embedded object present
  • 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 7 IoCs
  • Suspicious use of WriteProcessMemory 21 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\Document-138395542.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:560
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Celod.wac
      2⤵
      • Process spawned unexpected child process
      PID:1904
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Celod.wac1
      2⤵
      • Process spawned unexpected child process
      PID:1068
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32 -silent ..\Celod.wac2
      2⤵
      • Process spawned unexpected child process
      PID:852

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/560-55-0x000000002F1E1000-0x000000002F1E4000-memory.dmp
    Filesize

    12KB

  • memory/560-56-0x0000000071281000-0x0000000071283000-memory.dmp
    Filesize

    8KB

  • memory/560-57-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/852-62-0x0000000000000000-mapping.dmp
  • memory/1068-60-0x0000000000000000-mapping.dmp
  • memory/1904-58-0x0000000000000000-mapping.dmp
  • memory/1904-59-0x00000000754F1000-0x00000000754F3000-memory.dmp
    Filesize

    8KB