PDF malware analysis — malicious · a14f902e2a9262f7

MALICIOUS

PDF

1.6 KB

MD5: 02e9d089dcd31e91c2a56fa07fb3408a SHA-1: 6eaafe041f02e6fdf08ba4822ac15f4aa4afa80d SHA-256: a14f902e2a9262f7eeeda660bd44c89c0053c3d85f632ec5819a689fbed13bef

126 Risk Score

Malware Insights

MITRE ATT&CK

T1027 Obfuscated Files or Information

The PDF file contains embedded and obfuscated JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, PDF_EVAL, and PDF_FROMCHARCODE. ClamAV also flagged it as Heuristics.PDF.ObfuscatedNameObject. The embedded JavaScript file, javascript_obj0009_000.js, likely contains the malicious payload, potentially downloading and executing further stages.

Heuristics 6

ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
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_obj0009_000.js` `4bbabaa2c8cf6ddfc543ca80f471f02a4f2e359c5be3e190c40bf0efdcdee7fd`	pdf-javascript-stream	PDF /JS object 9 at offset 0xDC	3910 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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