Overview

overview

10

Static

static

8

invoice.xls

windows7_x64

10

invoice.xls

windows10-2004_x64

10

Analysis

  • max time kernel
    155s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    23/04/2022, 17:22

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General

  • Target
    invoice.xls
  • Size 36KB
  • Sample220423-vxjsfsdec5
  • SHA256 d55b219cab698a036e8043e2652923f7b9831ad543d486038e92cc1faf56c0d4
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 2 IoCs
  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 4 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\invoice.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4644
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\g6kg25K.vbs
      2⤵
      • Process spawned unexpected child process
      PID:2368
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\g6kg25K.vbs"
      2⤵
      • Blocklisted process makes network request
      PID:4584
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:4924

    Network

          MITRE ATT&CK Enterprise v6

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          Downloads

          g6kg25K.vbs
          • Path C:\Users\Public\Documents\g6kg25K.vbs
          • Size 555B
          • SHA256 633506d5e7674a9ea24cbcc0db8d0d327e6a174bc0582d56444f94d0fe7f6516
          • MD5 SHA1 SHA512
          Submit Download

          memory/4644-130-0x00007FF8C6890000-0x00007FF8C68A0000-memory.dmp
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          memory/4644-131-0x00007FF8C6890000-0x00007FF8C68A0000-memory.dmp
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          memory/4644-132-0x00007FF8C6890000-0x00007FF8C68A0000-memory.dmp
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          memory/4644-133-0x00007FF8C6890000-0x00007FF8C68A0000-memory.dmp
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          memory/4644-134-0x00007FF8C6890000-0x00007FF8C68A0000-memory.dmp
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