Malicious PDF — malware analysis report

Static analysis result for SHA-256 795f642be0f2b56a…

MALICIOUS

PDF

13.1 KB Created: 2019-04-30 05:32:25 +01:00 Authoring application: mPDF 5.7
MD5: 363da0dd2e2ff80c94ff47e0917eb685 SHA-1: f9d6c81f0af1739efbc410b2d47f180399a1215b SHA-256: 795f642be0f2b56a1e3a56cf68e4948eb588c8084e92a4f8fcb7d9576686493f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, forming a link farm that directs users to download other PDF files. This behavior is indicative of a SEO poisoning or content-luring attack, aiming to drive traffic or potentially distribute further malicious content disguised as academic texts. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9006

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/6093097093098099/Berenice-Bajazet-by-Jean-Racine.pdf
    • http://loaminoo.linkpc.net/8095091091096098/Theatre-Complet-Avec-Bajazet-Mithridate-Iphigenie-Phedre-Esther-Athalie-by-Jean-Racine.pdf
    • http://loaminoo.linkpc.net/6090097096093093/Racine-Britannicus-and-Ph-dre-in-the-original-French-by-Jean-Racine.pdf
    • http://loaminoo.linkpc.net/8095091091095093/Racine-s-Phedre-Ed-with-Introduction-and-Notes-by-Jean-Racine.pdf
    • http://loaminoo.linkpc.net/5095097090094091/Racine-Five-Plays-by-Jean-Racine.pdf
    • http://loaminoo.linkpc.net/5097099095097098/Cantiques-Spirituels-Et-Au-by-Jean-Racine.pdf
    • http://loaminoo.linkpc.net/4091098095090096/Iphigenia-Phaedra-Athaliah-by-Jean-Racine.pdf
    • http://loaminoo.linkpc.net/6090097096092094/Andromaque-Britannicus-Phaedre-Athalia-by-Jean-Racine.pdf
    • http://loaminoo.linkpc.net/8093099091099091/The-Purloined-Letter-and-Berenice-La-Lettre-vol-e-et-B-r-nice-by-Edgar-Allan-Poe.pdf
    • http://loaminoo.linkpc.net/7097099097091092/Berenice-Abbott-Changing-New-York-by-Berenice-Abbott.pdf
    • http://loaminoo.linkpc.net/5095097090095091/Neverworld-by-E-Racine.pdf
    • http://loaminoo.linkpc.net/5095097090094097/Racine-by-Gerald-L-Karwowski.pdf
    • http://loaminoo.linkpc.net/6090097096090093/Racine-Britannicus-by-John-Campbell.pdf
    • http://loaminoo.linkpc.net/7097099097095095/Klimt-and-His-Cat-by-B-r-nice-Capatti.pdf
    • http://loaminoo.linkpc.net/7097099099095097/Berenice-s-Hair-by-Guy-Ottewell.pdf
    • http://loaminoo.linkpc.net/5095096099098090/Backlash-Diana-Racine-3-by-Polly-Iyer.pdf
    • http://loaminoo.linkpc.net/5095097090094095/Book-of-Storyteller-Secrets-by-Wade-Racine.pdf
    • http://loaminoo.linkpc.net/7097099099095099/French-Style-by-Berenice-Vila.pdf
    • http://loaminoo.linkpc.net/7097098092095098/Geishas-by-B-r-nice-Geoffroy-Schneiter.pdf
    • http://loaminoo.linkpc.net/7097099098099090/A-City-of-Sadness-by-B-r-nice-Reynaud.pdf

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