PDF / .PHP malware analysis — malicious · c4e7d978e6f7841b

MALICIOUS

PDF / .PHP

9.7 KB Created: 2009-02-19 14:45:49 -02:00 Authoring application: Writer (via OpenOffice.org 3.0)

MD5: 9678f54650ab10d977f1ecfe32182110 SHA-1: c5b5eb5af2ae571fc1932a33fa7082410eaaa2b2 SHA-256: c4e7d978e6f7841bbf32e27a6637797032ab676d8addc268dc77bb1757d71208

98 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_LAUNCH. The JavaScript stream, named 'javascript_obj0027_000.js', is obfuscated and contains an eval() call, suggesting it's designed to download and execute a second-stage payload. The file's creation metadata points to OpenOffice Writer, but the file type is reported as PDF/.PHP, indicating a potential misdirection or multi-stage delivery.

Heuristics 5

Launch action high PDF_LAUNCH

PDF contains a /Launch action with an unresolved or extension-less target — treat as potentially dangerous
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
JavaScript action low PDF_JAVASCRIPT

PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0027_000.js` `4ad41a591ebd377f1c66113bd9f8057db8140f6486fb6cf69b0eb886082ed6ab`	pdf-javascript-stream	PDF /JS object 27 at offset 0x1C1B	3361 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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