Analysis

  • max time kernel
    146s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01/04/2021, 17:15

General

  • Target
    71923841627-04012021.xlsm
  • Size 173KB
  • Sample210401-jqw4566hex
  • SHA256 2f4f675900433f167fc04d0a2009195548db1f4aaa0a4d5b70443dcd341aeac0
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://45.150.67.244/44285,5327891204.dat

  • xlm40.dropper

    http://195.123.210.248/44285,5327891204.dat

  • xlm40.dropper

    http://91.211.91.69/44285,5327891204.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 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 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\71923841627-04012021.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Hodas.vyur,PluginInit
      2⤵
      • Process spawned unexpected child process
      PID:1528
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Hodas.vyur1,PluginInit
      2⤵
      • Process spawned unexpected child process
      PID:1044
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Hodas.vyur2,PluginInit
      2⤵
      • Process spawned unexpected child process
      PID:1328

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1212-5-0x000007FEF5E90000-0x000007FEF610A000-memory.dmp

        memory/1528-7-0x0000000075ED1000-0x0000000075ED3000-memory.dmp

        memory/1968-2-0x000000002FBD1000-0x000000002FBD4000-memory.dmp

        memory/1968-3-0x0000000071031000-0x0000000071033000-memory.dmp

        memory/1968-4-0x000000005FFF0000-0x0000000060000000-memory.dmp