PDF malware analysis — malicious · 3332f17da7bb4e13

MALICIOUS

PDF

5.11 MB Created: 2008-07-01 21:04:15 -05:00 Authoring application: Microsoft PowerPoint - Bowers_Google Hacking_Comp_Intel_2008.ppt (via ScanSoft PDF Create! 4)

MD5: af7bc2bb8e55ec38e7ece8a1aba4ece3 SHA-1: 702b4a615c626ec7365ed79460f6e95f6aea5726 SHA-256: 3332f17da7bb4e13c241c7d89782ee59e31a8c15ee078461276cad4ee7f12b80

156 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript with an eval() call, indicating it's designed to execute malicious code. ClamAV identified this as Pdf.Dropper.Agent-7371207-0. The ML classifier also flagged it with high confidence. The presence of JavaScript actions and streams, along with the eval() function, strongly suggests the document's primary purpose is to download and execute a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9753

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7371207-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7371207-0
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.
Additional-actions dictionary low PDF_AA

PDF defines /AA (Additional Actions) that references an executable action (JS/JavaScript/Launch/SubmitForm) — can auto-trigger on document or widget events. Form-field calc/format/validate/keystroke handlers in legitimate interactive forms commonly fire this, so it is reported as a low-weight signal; weaponised auto-execution is flagged by stronger rules (PDF_OPENACTION, encrypted-with-JS, etc.)
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_obj0001_004.js` `b8f3f934a75e9d095a0df42952a4acbd0328ad078bbf712055b81ada147cc991`	pdf-javascript-stream	PDF /JS object 1 at offset 0xF	1541 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 8 eval/decoder/string-building token(s).

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