PDF malware analysis — malicious · 42167fc9567f4ffb

MALICIOUS

PDF

1.95 MB Created: 2009-05-13 01:32:21 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 57b7412f5eefa4b500f91bda21eee88a SHA-1: c74e21f1f0cf63d3e035894f49b507344f2783fd SHA-256: 42167fc9567f4ffb3b8fad05bf125d9bf7d97f05fe881ec4f5688c2a660f17a6

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. The ClamAV detection of 'Pdf.Dropper.Agent-7254621-0' strongly suggests malicious intent. The embedded JavaScript likely downloads and executes a second-stage payload, a common technique for PDF-based malware delivery.

Heuristics 6

ClamAV: Pdf.Dropper.Agent-7254621-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7254621-0
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
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_obj0025_001.js` `bd1df36de649670994dd4510d5b39488cdd19645a3ec44916f4362e5f94621ad`	pdf-javascript-stream	PDF /JS object 25 at offset 0x92D	6593 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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