Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5a37c642010075e…

MALICIOUS

PDF

21.8 KB Created: 2019-05-07 09:44:12 +01:00 Authoring application: mPDF 5.7
MD5: 7ae2aaac2f34ab1497dd676e8e7b3ded SHA-1: 5c81d01692298e9914c7f15c01a44e7cf6719a6b SHA-256: f5a37c642010075ef68ef6fcb5565f8a4ed319ebdd98a75977230fcd14ac8b47
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of embedded external links, forming a link farm. This heuristic, combined with the ML classifier's high confidence, suggests the document is designed to redirect users to potentially malicious content. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific intent beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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://unieoooq.linkpc.net/14e14e74e74e64e84e1/Gesunder-Darm-Der-Schl-ssel-zur-Gesundheit-by-Mirtill-Obst.pdf
    • http://unieoooq.linkpc.net/94e24e64e34e24e2/Kontroversen-ALS-Schl-ssel-Zur-Wissenschaft-Wissenskulturen-in-Sprachlicher-Interaktion-by-Wolf-Andreas-Liebert.pdf
    • http://unieoooq.linkpc.net/14e04e94e64e64e34e7/Die-Geschichte-Und-Die-Propheten-Die-Wahren-Schl-ssel-Zu-Den-Pforten-Der-Zukunft-Eines-Janus-Warnende-Stimme-in-Unseren-Zu-Kirchlichen-Und-Politischen-Revolutionen-So-Sehr-Geneigten-Zeiten-by-Johann-Adam-Boost.pdf
    • http://unieoooq.linkpc.net/14e14e74e74e54e64e8/Gesunder-Darm---gesundes-Leben-by-Joachim-Bernd-Vollmer.pdf
    • http://unieoooq.linkpc.net/14e14e74e74e64e44e4/Darm-Heile-deinen-Darm-und-werde-gesund-by-Mira-Brand.pdf
    • http://unieoooq.linkpc.net/14e04e14e74e04e64e5/Bestimmung-Wasserloslicher-Vitamine-in-Obst--amp-Gemusesaften-by-Wagner-Sophie-Marie.pdf
    • http://unieoooq.linkpc.net/14e14e74e74e64e04e4/De-darm-in-beweging-by-G-Boeckxstaens.pdf
    • http://unieoooq.linkpc.net/14e14e74e34e24e64e5/Abnehmen-durch-Obst-In-12-Tagen-15kg-abnehmen-by-Lea-Senf.pdf
    • http://unieoooq.linkpc.net/94e14e74e74e64e8/Schlank-spazieren-Wie-Sie-mit-10-000-Schritten-pro-Tag-abnehmen-fit-bleiben-und-ges-nder-Leben-by-Lisa-Seifert.pdf
    • http://unieoooq.linkpc.net/14e14e74e74e54e64e6/Darm-in-Balance-by-Dr-med-Eberhard-Wormer.pdf
    • http://unieoooq.linkpc.net/14e04e34e24e84e14e4/Darm-in-60-Sekunden-erkl-rt-by-Kerstin-Menzel.pdf
    • http://unieoooq.linkpc.net/14e14e84e54e94e64e2/Art-Walk-Berlin-Wedding-und-Tegel-Ein-beeindruckend-gesunder-Streifzug-in-Wort-und-Bild-by-Ralph-K-hne.pdf
    • http://unieoooq.linkpc.net/14e14e74e74e64e84e3/Beratungskompetenz-Magen-Und-Darm-in-Der-Apotheke-by-Lieselotte-Hartmann.pdf
    • http://unieoooq.linkpc.net/14e04e04e44e54e14e1/Mens-sana-in-corpore-sano-Beziehungsweise-Ein-gesunder-Geist-in-einem-gesunden-K-rper-by-Rodolfo-Caro.pdf
    • http://unieoooq.linkpc.net/14e14e74e74e64e74e8/Darm-gut-alles-gut-Darmsanierung-leicht-gemacht-by-Alfred-Gruber.pdf
    • http://unieoooq.linkpc.net/84e64e44e54e94e1/Mein-Darm-Herr-Mayr-und-ich---Ein-Selbstversuch-im-Entgiften-by-Cornelia-Lotter.pdf
    • http://unieoooq.linkpc.net/14e04e04e34e64e14e9/S-ure-Basen-Balance-GU-Ratgeber-Gesundheit-by-Eva-Maria-Kraske.pdf
    • http://unieoooq.linkpc.net/14e14e14e94e94e74e6/Aloe-Vera-Beauty-Gesundheit-Lebenskraft-by-Petra-Neumayer.pdf
    • http://unieoooq.linkpc.net/14e14e54e54e24e94e4/Das-Wohlf-hlbuch-f-r-die-Waage---Astrologie-Gesundheit-und-Psyche-by-Anna-D-Garuda.pdf
    • http://unieoooq.linkpc.net/14e04e84e74e44e94e3/Nie-wieder-sauer-Gesundheit-atmen-trinken-essen-by-Christiane-May-Ropers.pdf
    • http://unieoooq.linkpc.net/14e14e74e74e54e64e8/Gesunder-Darm---gesundes-Leben-by-Joac