Malicious PDF — malware analysis report

Static analysis result for SHA-256 052b4932ee80c0b5…

MALICIOUS

PDF

22.7 KB Created: 2019-04-30 04:17:38 +01:00 Authoring application: mPDF 5.7
MD5: ae5524f21c88a3da591c61d1baaf2e5c SHA-1: 51d7ee9bc08e34369bd46344b046629e1b306b0e SHA-256: 052b4932ee80c0b5a494837fc04165ea5188b4ee9e76fe1a50c07b0aae2a037e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to a single domain, identified by the PDF_SEO_LINK_FARM heuristic. While the ML classifier strongly indicates maliciousness, the specific intent appears to be SEO manipulation or potentially distributing further malware via the linked PDFs. No scripts were extracted, but the structure suggests an attempt to drive traffic or distribute content through a link farm.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9901

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/8098090090092/Diversity-Alliance-Star-Wars-Young-Jedi-Knights-8-by-Kevin-J-Anderson.pdf
    • http://loaminoo.linkpc.net/8097096091093/Crisis-at-Crystal-Reef-Star-Wars-Young-Jedi-Knights-14-by-Kevin-J-Anderson.pdf
    • http://loaminoo.linkpc.net/2098097097099097/Jedi-Search-Star-Wars-The-Jedi-Academy-Trilogy-1-by-Kevin-J-Anderson.pdf
    • http://loaminoo.linkpc.net/8099098094097/Anakin-s-Quest-Star-Wars-Junior-Jedi-Knights-4-by-Rebecca-Moesta.pdf
    • http://loaminoo.linkpc.net/9091099098098094/Star-Wars-Flucht-ins-Ungewisse-by-Kevin-J-Anderson.pdf
    • http://loaminoo.linkpc.net/9096098098097093/Star-Wars-Das-Imperium-schl-gt-zur-ck---Du-willst-also-ein-Jedi-werden-Star-Wars-Illustrated-Novels-2-by-Adam-Gidwitz.pdf
    • http://loaminoo.linkpc.net/3093099091092097/Star-Wars-Knights-of-the-Old-Republic-Vol-6-Vindication-Star-Wars-Knights-of-the-Old-Republic-6-by-John-Jackson-Miller.pdf
    • http://loaminoo.linkpc.net/3093099093091098/Star-Wars-Knights-of-the-Old-Republic-Vol-1-Commencement-Star-Wars-Knights-of-the-Old-Republic-1-by-John-Jackson-Miller.pdf
    • http://loaminoo.linkpc.net/6096091097091096/Star-Wars-Chevaliers-de-l-ancienne-r-publique-T07-La-Destructrice-Star-Wars-Knights-of-the-Old-Republic-8-by-John-Jackson-Miller.pdf
    • http://loaminoo.linkpc.net/6096091097091093/Star-Wars-Chevaliers-de-l-ancienne-r-publique-T08-D-mon-Star-Wars-Knights-of-the-Old-Republic-9-by-John-Jackson-Miller.pdf
    • http://loaminoo.linkpc.net/6096091096098096/Star-Wars-Chevaliers-de-l-ancienne-r-publique-T05-Sans-piti-Star-Wars-Knights-of-the-Old-Republic-6-by-John-Jackson-Miller.pdf
    • http://loaminoo.linkpc.net/6096091096096095/Star-Wars-Chevaliers-de-l-ancienne-r-publique-T02-Ultime-recours-Star-Wars-Knights-of-the-Old-Republic-2-by-John-Jackson-Miller.pdf
    • http://loaminoo.linkpc.net/6094090099095090/Star-Wars---Jedi-T07-Nomade-by-Rob-Williams.pdf
    • http://loaminoo.linkpc.net/7097090092/The-Last-Jedi-Star-Wars-Novelizations-8-by-Jason-Fry.pdf
    • http://loaminoo.linkpc.net/3094090090095093/Star-Wars-Tales-Omnibus-Tales-from-the-Mos-Eisley-Cantina-Tales-of-the-Bounty-Hunters-and-Tales-from-Jabba-s-Palace-by-Kevin-J-Anderson.pdf
    • http://loaminoo.linkpc.net/1091090093094099099/Star-Wars-MedStar-2-Jedi-Heilerin-by-Michael-Reaves.pdf
    • http://loaminoo.linkpc.net/1090097092090/Backlash-Star-Wars-Fate-of-the-Jedi-4-by-Aaron-Allston.pdf
    • http://loaminoo.linkpc.net/1096095099096099/Outcast-Star-Wars-Fate-of-the-Jedi-1-by-Aaron-Allston.pdf
    • http://loaminoo.linkpc.net/6098098094097/The-Day-of-Reckoning-Star-Wars-Jedi-Apprentice-8-by-Jude-Watson.pdf
    • http://loaminoo.linkpc.net/3094090090099092/Star-Wars-Infinities---Return-of-the-Jedi-by-Adam-Gallardo.pdf