PDF malware analysis — malicious · a6fdbf3d4341e985

MALICIOUS

PDF

4.1 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 8ceefa1050f260249aa332c75e7765bc SHA-1: ded459af2d0f43f46e5c0ccc39586da8abd462f1 SHA-256: a6fdbf3d4341e985aabdeb479b94a460e3195bb50350126a643b45b3d9636e8e

126 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_EVAL. The critical ClamAV detection of 'Pdf.Dropper.Agent-7290250-0' strongly suggests its malicious nature. The embedded JavaScript, although obfuscated, likely facilitates the download and execution of further malicious content, a common dropper behavior. No specific family could be identified due to the generic nature of the dropper and lack of further indicators.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7290250-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7290250-0
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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_obj0013_001.js` `226b389360f0722a91e8ed976114e8ae3cf3e35c83e92df4d2d3ddfeea74f733`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3D2	12629 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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