Malicious PDF — malware analysis report

Static analysis result for SHA-256 f05aebcf907ef9a6…

MALICIOUS

PDF

20.0 KB Created: 2019-04-30 05:48:57 +01:00 Authoring application: mPDF 5.7
MD5: cd49dcd1a31e3fdc7828a4cf96a412a6 SHA-1: f2a9f7e8201937c550f693c117a512f17cec9ce8 SHA-256: f05aebcf907ef9a674d9c05018a6ad2b4a02d67648fe109bb08fda8f07c4f9a6
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While no scripts were extracted, the sheer volume of links and the suspicious domain suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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/1091094095099095097/HBR-s-10-Must-Reads-on-Teams-by-Harvard-Business-Review.pdf
    • http://loaminoo.linkpc.net/5095098096094097/Business-Communication-by-Harvard-Business-School-Press.pdf
    • http://loaminoo.linkpc.net/8093099093093091/Assumindo-o-Controle-do-Seu-Tempo-by-Harvard-Business-School-Press.pdf
    • http://loaminoo.linkpc.net/1090092099092099/Ahead-of-the-Curve-Two-Years-at-Harvard-Business-School-by-Philip-Delves-Broughton.pdf
    • http://loaminoo.linkpc.net/7097094092099096/Illustrated-Catalogue-of-the-Museum-of-Comparative-Zo-logy-at-Harvard-College-Issue-4-by-Harvard-University-Museum-of-Comparativ.pdf
    • http://loaminoo.linkpc.net/2093091097097093/More-Weird-Tales-Including-The-Bad-Review-by-Richard-Ferguson.pdf
    • http://loaminoo.linkpc.net/3092091093094095/Whiz-Tanner-and-the-Phony-Masterpiece-Tanner-Dent-Mysteries-1-by-Fred-Rexroad.pdf
    • http://loaminoo.linkpc.net/3092091090096098/Whiz-Tanner-and-the-Mysterious-Countdown-Tanner-Dent-Mysteries-7-by-Fred-Rexroad.pdf
    • http://loaminoo.linkpc.net/9091093090098090/The-Economics-of-Climate-Change-The-Stern-Review-by-Nicholas-Stern.pdf
    • http://loaminoo.linkpc.net/1091090098099094098/One-Hundred-Years-Of-Tanner-Tanner-19-by-Remington-Kane.pdf
    • http://loaminoo.linkpc.net/1091090098099094094/Tanner-s-Virgin-Evan-Tanner-6-by-Lawrence-Block.pdf
    • http://loaminoo.linkpc.net/1091090098099094099/Me-Tanner-You-Jane-Evan-Tanner-7-by-Lawrence-Block.pdf
    • http://loaminoo.linkpc.net/9092096093094091/how-to-hire-people-that-will-change-your-business-by-nevo-hadas.pdf
    • http://loaminoo.linkpc.net/6095098094096093/Fouad-Bellamine-by-Pascale-Le-Thorel-by-Pascale-Le-Thorel-Daviot.pdf
    • http://loaminoo.linkpc.net/7097094092099097/Illustrated-Catalogue-of-the-Museum-of-Comparative-Zoology-at-Harvard-College-Issue-4-by-Harvard-University-Museum-of-Comparative-Zoology.pdf
    • http://loaminoo.linkpc.net/9094097094091094/Text-Me-Snap-Me-Ask-Me-Anything-How-Entrepreneurs-Consultants-And-Artists-Can-Use-The-Power-Of-Intimate-Attention-To-Build-Their-Brand-Grow-Their-Business-And-Change-The-World-by-Kevin-Kruse.pdf
    • http://loaminoo.linkpc.net/9093092090097098/The-Tactics-of-Change-Doing-Therapy-Briefly-by-Richard-Fisch.pdf
    • http://loaminoo.linkpc.net/2093096095093095/The-Winds-of-Change-Richard-Jury-19-by-Martha-Grimes.pdf
    • http://loaminoo.linkpc.net/6090096095099093/Writing-Business-Processes---A-Practical-Approach-by-Richard-Gandon.pdf
    • http://loaminoo.linkpc.net/5092097099092094/Buddhism-Transformed-Religious-Change-in-Sri-Lanka-by-Richard-F-Gombrich.pdf
    • http://loaminoo.linkpc.net/909109309009

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