Overview

overview

10

Static

static

8

spin.xls

windows7_x64

10

spin.xls

windows10-2004_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    28/04/2022, 05:42

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General

  • Target
    spin.xls
  • Size 36KB
  • Sample220428-gd1d7sbbb7
  • SHA256 59e8df76a0e5658a44dd2cc0e08d5cd1de8e961eadb19140f8b4cd18ab94c4a4
  • 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 1 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
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 14 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\spin.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4512
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\Mdv9.vbs
      2⤵
      • Process spawned unexpected child process
      PID:3656
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4280
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\Mdv9.vbs"
      2⤵
      • Blocklisted process makes network request
      PID:4632
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:4284

    Network

          MITRE ATT&CK Enterprise v6

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          Downloads

          Mdv9.vbs
          • Path C:\Users\Public\Documents\Mdv9.vbs
          • Size 606B
          • SHA256 90ca4d348368ff5a295272935b655f48c5d54be04cbc527f1bac5bd53b56237e
          • MD5 SHA1 SHA512
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          memory/4512-130-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
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          memory/4512-131-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
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          memory/4512-132-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
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          memory/4512-133-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
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          memory/4512-134-0x00007FFE379B0000-0x00007FFE379C0000-memory.dmp
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          memory/4512-135-0x00007FFE35080000-0x00007FFE35090000-memory.dmp
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          memory/4512-136-0x00007FFE35080000-0x00007FFE35090000-memory.dmp
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