PDF malware analysis — malicious · fce9972b61fa2cb4

MALICIOUS

PDF

4.4 KB Created: 2008-08-06 01:42:27 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: b0bc98fc2ce219def94ba9c93bd2da96 SHA-1: fcd4c38acc9f7b4a81462f55182a92063686108f SHA-256: fce9972b61fa2cb48cdc3d4f26ee02ae5a61887a4f090a1e10504afb2706645a

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The ML classifier strongly flagged this PDF as malicious. The JavaScript stream, named 'javascript_obj0013_001.js', likely contains obfuscated code that attempts to download and execute a secondary payload, as suggested by the PDF_UNESCAPE heuristic and the presence of encoded blobs in the static triage. The authoring application 'Scribus' is not inherently malicious but is noted.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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.
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` `9a19b58c09ae68136720079ee194a227ab2ac70a54d6a81d82395ca472744b0f`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3DC	2798 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).

Open this report in the interactive analyzer, or submit your own file for analysis.