Overview

overview

10

Static

static

Vessel Doc.xlsm

windows7_x64

10

Vessel Doc.xlsm

windows10_x64

10

Analysis

  • max time kernel
    140s
  • max time network
    131s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    09/07/2020, 11:49

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General

  • Target
    Vessel Doc.xlsm
  • Size 51KB
  • Sample200709-fd6pfgtwtn
  • SHA256 83d3fbe275cdaf290cbe7b9b9e6ac3283992a23a5138604c31f5f698d97b9249
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Script User-Agent 1 IoCs
  • Process spawned unexpected child process 1 IoCs

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

  • Suspicious use of WriteProcessMemory 5 IoCs
  • Blacklisted process makes network request 1 IoCs
  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • NTFS ADS 3 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\Vessel Doc.xlsm"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious behavior: AddClipboardFormatListener
    • Checks processor information in registry
    • Suspicious use of WriteProcessMemory
    • Enumerates system info in registry
    • NTFS ADS
    PID:4060
    • C:\Windows\System32\cscript.exe
      "C:\Windows\System32\cscript.exe" C:\programdata\asc.txt:script1.vbs
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      • Blacklisted process makes network request
      PID:3060
      • C:\programdata\Ce51Vx1v.exe
        C:\programdata\Ce51Vx1v.exe
        3⤵
        • Executes dropped EXE
        PID:3780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3780 -s 1164
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Program crash
          • Suspicious use of AdjustPrivilegeToken
          PID:1500

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1500-17-0x0000000005050000-0x0000000005051000-memory.dmp
        Download

        memory/1500-8-0x0000000004810000-0x0000000004811000-memory.dmp
        Download