PDF malware analysis — malicious · 3154cebe509a16c9

MALICIOUS

PDF

4.4 KB Created: 2015-06-03 16:39:31 +03:00 Authoring application: DOMPDF

MD5: a11a00844fd78a3f966b51c11f1e5c3a SHA-1: 7d3e8a59dc2efe9394071ea10e65c3c838be5443 SHA-256: 3154cebe509a16c99d908e1512bd2cc5efcadb1783a37bd0250d3c5b5a6a725a

90 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a significant number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body text is heavily obfuscated and truncated, making it difficult to determine a more specific attack pattern beyond the link farm.

Machine Learning

Nyx PDF Classifier malicious score 0.5320

Heuristics 2

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://www.prequine.com/index.php?2015/torcida.pdf&fcldj=1&aspx=436
- http://phcccolorado.org/index.php?2015/arabtera.pdf&effpp=1&aspx=684
- http://www.prequine.com/index.php?2015/torcida.pdf&fcldj=1&aspx=439
- http://www.kbb-gesellschaft.de/index.php?2015/ergoarena.pdf&urggv=1&aspx=841
- http://www.nibl.co.nz/index.php?2015/decision.pdf&angzv=1&aspx=1071
- http://dyrlaegecentret.dk/index.php?2015/typestitch.pdf&hjhle=1&aspx=sitemap

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