Analysis

  • max time kernel
    73s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    01/04/2021, 18:15

General

  • Target
    7275060031-04012021.xlsm
  • Size 173KB
  • Sample210401-q9a9vbqar2
  • SHA256 d2f5c3ad81f828b3ff314fcdceb8d7b84cb71db837573bcb4db9bf0380f0d4ad
  • 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\7275060031-04012021.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1812
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Hodas.vyur,PluginInit
      2⤵
      • Process spawned unexpected child process
      PID:1484
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Hodas.vyur1,PluginInit
      2⤵
      • Process spawned unexpected child process
      PID:1852
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Hodas.vyur2,PluginInit
      2⤵
      • Process spawned unexpected child process
      PID:1908

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/664-5-0x000007FEF79D0000-0x000007FEF7C4A000-memory.dmp

        memory/1484-7-0x0000000076241000-0x0000000076243000-memory.dmp

        memory/1812-2-0x000000002FB71000-0x000000002FB74000-memory.dmp

        memory/1812-3-0x0000000071241000-0x0000000071243000-memory.dmp

        memory/1812-4-0x000000005FFF0000-0x0000000060000000-memory.dmp