Overview

overview

10

Static

static

8

Claim92563...1.xlsm

windows7_x64

10

Claim92563...1.xlsm

windows10_x64

10

Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    29/03/2021, 15:26

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General

  • Target
    Claim92563680703292021.xlsm
  • Size 173KB
  • Sample210329-rx44n79wze
  • SHA256 847af8ad14f7becfb1ff4ae58ee81d8f892b4675ebf6482315fd2edc643f8a5b
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Claim92563680703292021.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\Hodas.vyur,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:4040
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\Hodas.vyur1,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:3796
    • C:\Windows\SYSTEM32\rundll32.exe
      rundll32 ..\Hodas.vyur2,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:424

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1400-2-0x00007FF967810000-0x00007FF967820000-memory.dmp
        Download

        memory/1400-3-0x00007FF967810000-0x00007FF967820000-memory.dmp
        Download

        memory/1400-4-0x00007FF967810000-0x00007FF967820000-memory.dmp
        Download

        memory/1400-5-0x00007FF967810000-0x00007FF967820000-memory.dmp
        Download

        memory/1400-6-0x00007FF98ABC0000-0x00007FF98B1F7000-memory.dmp
        Download