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Check for CanaryTokens in Microsoft Office Files
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# | |
# Name: coalmine.ps1 | |
# Author: C0axx | |
# Check-Docx -docxPath .\gwfrr71nre79bk5gokt3h96ms.docx | |
# Check-Xlsx -xlsxPath .\o25p0hk0p6ss0gmnn9e7rdxh5.xlsx | |
# Check-PDF -PDfPath .\wjsmq251q2b8dmnu0022m0i5q.pdf | |
function Check-Docx () { | |
[CmdletBinding()] Param( | |
[Parameter(Mandatory=$True)] [String] $docxPath, | |
[String] $tempPath = "C:\Users\Curtis\Desktop\Temp\" | |
) | |
Copy-Item -Path $docxPath -Destination $tempPath/Doc.zip -ErrorAction SilentlyContinue | |
Expand-Archive -Path $tempPath/Doc.zip -DestinationPath $tempPath/TempDoc -ErrorAction SilentlyContinue | |
$DocxFiles = Get-ChildItem -Path $tempPath/TempDoc -Filter *.xml -Recurse -ErrorAction SilentlyContinue -Force | |
$canaryFound = $false | |
$regex = ‘([a-zA-Z]{3,})://(.+\.)?canarytokens\.com+(/[\w- ./?%&=]*)|([a-zA-Z]{3,})://internalcanarytokendomain\.org+(/[\w- ./?%&=]*)’ | |
$DocxFiles | foreach { | |
IF ($_.FullName -match "footer" -or $_.FullName -match "header") { | |
IF ($match = Select-String -Path $_.FullName -Pattern $regex -AllMatches ) { Write-Host | |
$match |Select-String -Pattern 'canarytoken'| % { $_.Matches } | % { $_.Value } }} | |
} | |
Remove-Item -Path $tempPath/Doc.zip -Force | |
Remove-Item -Path $tempPath/TempDoc -Recurse -Force | |
} | |
function Check-Xlsx () { | |
[CmdletBinding()] Param( | |
[Parameter(Mandatory=$True)] [String] $xlsxPath, | |
[String] $tempPath = $env:TEMP | |
) | |
Copy-Item -Path $xlsxPath -Destination $tempPath/Xlsx.zip -ErrorAction SilentlyContinue | |
Expand-Archive -Path $tempPath/Xlsx.zip -DestinationPath $tempPath/TempXlsx -ErrorAction SilentlyContinue | |
$XlsxFiles = Get-ChildItem -Path $tempPath/TempXlsx -Filter *.xml.rels -Recurse -ErrorAction SilentlyContinue -Force | |
$regex = ‘([a-zA-Z]{3,})://(.+\.)?canarytokens\.com+(/[\w- ./?%&=]*)|([a-zA-Z]{3,})://internalcanarytokendomain\.org+(/[\w- ./?%&=]*)’ | |
$XlsxFiles | foreach { | |
IF ($match = Select-String -Path $_.FullName -Pattern $regex -AllMatches ) { Write-Host | |
$match |Select-String -Pattern 'canarytoken'| % { $_.Matches } | % { $_.Value } }} | |
Remove-Item -Path $tempPath/Xlsx.zip -Force | |
Remove-Item -Path $tempPath/TempXlsx -Recurse -Force | |
} | |
function Check-PDF () { | |
[CmdletBinding()] Param( | |
[Parameter(Mandatory=$True)] [String] $PDfPath, | |
[String] $tempPath = $env:TEMP | |
) | |
Copy-Item -Path $PDfPath -Destination $tempPath/temp.pdf -ErrorAction SilentlyContinue | |
New-Item -Path "$tempPath/Streams" -ItemType Directory | Out-Null | |
& C:\PDFStreamDumper\PDFStreamDumper.exe $tempPath/temp.pdf /extract "$tempPath/Streams/" | |
Sleep 2 | |
$output = Get-ChildItem -Path $tempPath/Streams -Filter *.unk -Recurse -ErrorAction SilentlyContinue -Force | Get-Content -Delimiter '(' |Select-String -Pattern canarytoken -AllMatches | |
$OFS = "`r" | |
$OFS | |
$output.Line | |
Remove-Item -Path $tempPath/temp.pdf -Force | |
Remove-Item -Path $tempPath/Streams -Recurse -Force | |
} |
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