Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8f94e058c05e249…

MALICIOUS

PDF

21.8 KB Created: 2019-04-30 06:01:21 +01:00 Authoring application: mPDF 5.7
MD5: 14c7da408d9393ebd9ca4a71864aacee SHA-1: f49c7897a39df352e2b7fa489cdf24807a0403fe SHA-256: a8f94e058c05e249201d398aefcdccad9a1bc005caaf51cb25c476c4bcc8b83f
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, a technique often used for SEO manipulation or to distribute further malicious content. While the document body itself is heavily obfuscated, the presence of numerous links to PDFs hosted on 'loaminoo.linkpc.net' suggests a link farm or a distribution point for potentially harmful files. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/8097096099093090/Beitrage-Zur-Soziologie-Der-Gewerkschaften-by-Joachim-E-Bergmann.pdf
    • http://loaminoo.linkpc.net/1090091098099096093/Bergmann-s-Interplanetary-Venture-The-Bergmann-6-by-George-Pinneo.pdf
    • http://loaminoo.linkpc.net/1090091099090090094/Bergmann-s-Equestrian-Venture-The-Bergmann-4-by-George-Pinneo.pdf
    • http://loaminoo.linkpc.net/8097096098096096/Gewerkschaften-Staat-Unternehmer-Die-Gewerkschaften-Im-Sozialen-Und-Politischen-Kraftefeld-1914-Bis-1933-by-Michael-Ruck.pdf
    • http://loaminoo.linkpc.net/8097096099098095/Gewerkschaften-in-Der-Bundesrepublik-Deutschland-Dokumente-Zur-Stellung-Und-Aufgabe-Der-Gewerkschaften-in-Staat-Und-Gesellschaft-by-Helmuth-Liesegang.pdf
    • http://loaminoo.linkpc.net/1090091098099097091/Bergmann-s-Comet-The-Bergmann-3-by-George-Pinneo.pdf
    • http://loaminoo.linkpc.net/1091094093092098097/Deutsche-Passagier-Luftfahrt-Von-1955-Bis-Heute-Joachim-Wolfer-by-Joachim-Wolfer.pdf
    • http://loaminoo.linkpc.net/1090099090095091092/Soziologie-Und-Sozialpolitik-by-Christian-von-Ferber.pdf
    • http://loaminoo.linkpc.net/9091090095095095/Soziologie-in-Padagogischen-Kontexten-Handeln-Und-Akteure-by-Thomas-Br-semeister.pdf
    • http://loaminoo.linkpc.net/1091090094099090099/Erfahrungsbilder-Visuelle-Soziologie-Und-Dokumentarischer-Film-by-Robert-Schandlinger.pdf
    • http://loaminoo.linkpc.net/1091099096096097096/Soziologie-Der-Neurosen-Die-Nervosen-Storungen-in-Ihren-Beziehungen-Zum-Gemeinschafts--Und-Kulturleben-by-Karl-Birnbaum.pdf
    • http://loaminoo.linkpc.net/7094092097098095/Joachim-Du-Bellay-The-Regrets-quot-with-quot-the-Antiquities-of-Rome-quot-Three-Latin-Elegies-and-quot-the-Defense-and-Enrichment-of-the-French-Language-quot-a-Bilingual-Edition-university-of-Pennsylvania-Press-bb-09-12-2006-lco003000-12-75-00-ip-short-01-01-by-Joachim-Du-Bellay.pdf
    • http://loaminoo.linkpc.net/1091091094099097095/BUNTE-KREIDE-by-Joe-Bergmann.pdf
    • http://loaminoo.linkpc.net/8097096098096093/Gewerkschaften-Und-Mitbestimmung-by-Deutscher-Gewerkschaftsbund.pdf
    • http://loaminoo.linkpc.net/8097096096098096/Die-Gewerkschaften-Im-Atomkonflikt-by-Markus-Mohr.pdf
    • http://loaminoo.linkpc.net/8097096096099095/Gewerkschaften-Und-Strafvollzug-by-Klaus-Luderssen.pdf
    • http://loaminoo.linkpc.net/8097096098095097/Die-Finanzen-Der-Gewerkschaften-by-Kurt-Hirche.pdf
    • http://loaminoo.linkpc.net/1090091099090099094/Sunrise-Venture-The-Bergmann-9-by-George-Pinneo.pdf
    • http://loaminoo.linkpc.net/1091095097093099097/Angewandtes-Kundenbindungs-Management-by-Katja-Bergmann.pdf
    • http://loaminoo.linkpc.net/1090091099090098099/Integrating-PHP-Projects-with-Jenkins-by-Sebastian-Bergmann.pdf
    • http://loaminoo.linkpc.net/1090091098099097091/Bergmann-s-Comet-The-Bergmann-3-by-George-Pinneo

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