Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5bfb1c3cd4789fe…

MALICIOUS

PDF

25.5 KB Created: 2019-05-01 17:27:36 +01:00 Authoring application: mPDF 5.7
MD5: fa8e28e6a21b2208c7d7736c05d6979e SHA-1: ca4641c03f91614b877809a9e2bfb5f621abaa93 SHA-256: a5bfb1c3cd4789fecf4a29a857d52bb461cc5a7fef8c3d4968f5a58cfcf854e7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest a malicious intent to drive traffic or potentially host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9910

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/1091097091097092/Murdering-Mr-Monti-A-Merry-Little-Tale-of-Sex-and-Violence-by-Judith-Viorst.pdf
    • http://loaminoo.linkpc.net/2097097093095091/Alexander-Who-s-Trying-His-Best-to-Be-the-Best-Boy-Ever-by-Judith-Viorst.pdf
    • http://loaminoo.linkpc.net/4097092093092099/Lulu-and-the-Brontosaurus-by-Judith-Viorst.pdf
    • http://loaminoo.linkpc.net/4091091092098096/What-Are-You-Glad-About-What-Are-You-Mad-About-Poems-for-When-a-Person-Needs-a-Poem-by-Judith-Viorst.pdf
    • http://loaminoo.linkpc.net/3094096093095092/Imperfect-Control-Our-Lifelong-Struggles-With-Power-and-Surrender-by-Judith-Viorst.pdf
    • http://loaminoo.linkpc.net/2096097093093093/It-s-Hard-to-Be-Hip-Over-Thirty-and-Other-Tragedies-of-Married-Life-People-and-Other-Aggravations-by-Judith-Viorst.pdf
    • http://loaminoo.linkpc.net/6095095097093091/Necessary-Losses-The-Loves-Illusions-Dependencies-and-Impossible-Expectations-That-All-of-Us-Have-to-Give-Up-in-Order-to-Grow-by-Judith-Viorst.pdf
    • http://loaminoo.linkpc.net/8095090094091094/A-Visit-from-St-Nicholas-to-a-Liberated-Household-From-the-Original-Written-in-1823-by-Clement-Clarke-Moore-by-Judith-Viorst.pdf
    • http://loaminoo.linkpc.net/5091098091096092/Human-Rights-and-Gender-Violence-Translating-International-Law-into-Local-Justice-by-Sally-Engle-Merry.pdf
    • http://loaminoo.linkpc.net/1098096096094090/Trauma-and-Recovery-The-Aftermath-of-Violence---From-Domestic-Abuse-to-Political-Terror-by-Judith-Lewis-Herman.pdf
    • http://loaminoo.linkpc.net/1090095093093093092/Violence-and-Virtue-Artemisia-Gentileschi-s-quot-Judith-Slaying-Holofernes-quot-by-Eve-Straussman-Pflanzer.pdf
    • http://loaminoo.linkpc.net/5090091093098099/My-Father-Had-a-Daughter-Judith-Shakespeare-s-Tale-by-Grace-Tiffany.pdf
    • http://loaminoo.linkpc.net/5090093091090096/Dragon-s-Merry-Christmas-Dragon-s-Third-Tale-by-Dav-Pilkey.pdf
    • http://loaminoo.linkpc.net/3098095092090090/Merry-Christmas-Merry-Crow-by-Kathi-Appelt.pdf
    • http://loaminoo.linkpc.net/5095094096093096/Meditations-on-Violence-A-Comparison-of-Martial-Arts-Training-amp-Real-World-Violence-by-Rory-Miller.pdf
    • http://loaminoo.linkpc.net/6099093091090098/Murdering-Myriam-by-Val-Bird.pdf
    • http://loaminoo.linkpc.net/4093096094096096/Murdering-My-Youth-a-memoir-by-Cady-McClain.pdf
    • http://loaminoo.linkpc.net/3096098097097095/Murdering-McKinley-The-Making-of-Theodore-Roosevelt-s-America-by-Eric-Rauchway.pdf
    • http://loaminoo.linkpc.net/1091097097095092097/Circumcision-excision-racism-sexism-and-violence-The-greatest-crime-against-humanity-an-artificial-racism-masked-behind-tradition-religion-culture-and-folklore-catalyst-of-violence-by-Michel-Herve-Bertaux-Navoiseau.pdf
    • http://loaminoo.linkpc.net/1095090095094097/The-Merry-Millionaire-The-Merry-Millionaire-1-by-J-A-Wells.pdf
    • http://loaminoo.linkpc.net/6095095097093091/

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