Malicious PDF — malware analysis report

Static analysis result for SHA-256 b080d117e8df7b75…

MALICIOUS

PDF

15.3 KB Created: 2019-04-30 03:16:13 +01:00 Authoring application: mPDF 5.7
MD5: 093398d6d75888a783e2b53562828a44 SHA-1: cf60a51f1fb098013776f346faa2ff140118cab2 SHA-256: b080d117e8df7b75cb93928ab8c242da3a516d89c38d0b2d73b465a318aac95c
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this PDF as malicious with high confidence. The embedded URLs, while marked as benign in the provided context, are part of a link farm strategy, suggesting the PDF's primary purpose is to redirect users to external sites, potentially for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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://loaminoo.linkpc.net/4098099095098099/O-Pioneers-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4096097098090099/O-Pioneers-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/2096095096090090/O-Pioneers-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/3099094092090096/Early-Novels-and-Stories-The-Troll-Garden-O-Pioneers-The-Song-of-the-Lark-My-ntonia-One-of-Ours-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090096099095/Willa-Cather-Novels-and-Stories-1905-1918-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090097097099/Willa-Cather-in-Person-Interviews-Speeches-and-Letters-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090097097091/Willa-Cather-in-Europe-Her-Own-Story-of-the-First-Journey-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/9092098097098098/The-Collected-Works-of-Willa-Cather-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090096099093/Willa-Cather-s-Southern-Connections-Willa-Cather-s-Southern-Connections-New-Essays-on-Cather-and-the-South-New-Essays-on-Cather-and-the-South-by-Ann-Romines.pdf
    • http://loaminoo.linkpc.net/1091092090097091097/The-Best-of-Willa-Cather-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/2096094090097099/My-Antonia-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4098099090090093/My-Antonia-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4091091092099092/My-ntonia-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090096098094/The-Old-Beauty-and-others-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/7094094094097097/My-Antonia-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/4099092093091094/A-Lost-Lady-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/9092098098099092/Neighbour-Rosicky-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090096094097/Willa-Cather-by-Philip-L-Gerber.pdf
    • http://loaminoo.linkpc.net/1091092090097097095/The-Art-of-Willa-Cather-by-Bernice-Slote.pdf
    • http://loaminoo.linkpc.net/6092096093092094/Obscure-Destinies-by-Willa-Cather.pdf
    • http://loaminoo.linkpc.net/1091092090096099093/Willa-Cather-s-Southern-Connections-Willa-Cather-s-Southe

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