PDF malware analysis — malicious · 35e4486c9500cfd7

MALICIOUS

PDF

2.7 KB Created: 2008-12-17 23:30:58 UTC

MD5: 3c1741badcd1fa4b64ac8823f71b5532 SHA-1: 50fa5bbab8c25641aab0a0d4f83ae571bcdb94df SHA-256: 35e4486c9500cfd7a86cf229e54de4a57ae5e530c87e3ec8479cc794bd4807c5

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of PDF_EVAL and PDF_FROMCHARCODE firings suggests the script is obfuscated and likely attempts to download and execute a second-stage payload. The extracted artifact 'javascript_obj0006_000.js' is also suspicious. Due to the obfuscation, the exact payload and delivery mechanism cannot be determined with high confidence.

Heuristics 5

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_obj0006_000.js` `232a752a3be04174b6b301b1c7bc41a41899be1ba5a917d8f25c426a1091aca1`	pdf-javascript-stream	PDF /JS object 6 at offset 0xB5	10133 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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