Malicious PDF — malware analysis report

Static analysis result for SHA-256 e721a37f54f6f49a…

MALICIOUS

PDF

24.6 KB Created: 2019-04-30 17:30:28 +01:00 Authoring application: mPDF 5.7
MD5: 37e4d24ef552b1367a0d2814102c5d6d SHA-1: 4c8eb0055380b09c2915772cb40cd8699de2f159 SHA-256: e721a37f54f6f49a7ffc770abb2443d05a44160dae71c06b4da0dadf1cc72b24
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 specific URLs themselves are marked as benign, the sheer volume and structure suggest a malicious intent to redirect users to potentially harmful content. No scripts were extracted from this sample.

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://unieoooq.linkpc.net/84e64e44e54e74e3/Mann-mit-Grill-sucht-Frau-mit-Kohle-Ein-Selbstversuch-in-100-Kontaktanzeigen-by-Alexandra-Kilian.pdf
    • http://unieoooq.linkpc.net/14e14e94e84e34e94e3/B-uerin-sucht-Frau-by-Rebecca-Stein.pdf
    • http://unieoooq.linkpc.net/84e64e44e64e14e7/Auf-M-nnerfang-33-verr-ckte-halsbrecherische-und-ambitionierte-Versuche-den-Mann-f-rs-Leben-zu-finden---ein-Selbstversuch-by-Christiane-Hagn.pdf
    • http://unieoooq.linkpc.net/94e74e74e54e94e2/Frau-Und-Mann-Bei-Paulus-by-Norbert-Baumert.pdf
    • http://unieoooq.linkpc.net/94e54e04e94e14e7/The-Gardener-amp-the-Grill-The-Bounty-of-the-Garden-Meets-the-Sizzle-of-the-Grill-by-Karen-Adler.pdf
    • http://unieoooq.linkpc.net/74e44e44e34e64e5/Z-gellos-Explizit-Eine-erregende-Geschichte-f-r-Mann-und-Frau-by-Kara-Vanille-Zetamu.pdf
    • http://unieoooq.linkpc.net/14e14e84e94e04e24e9/Die-Frau-und-der-Sozialismus-Vollst-ndige-Ausgabe-Klassiker-der-sozialistischen-Literatur---Beitrag-zur-Frauenemenzipation-Die-Stellung-der-Frau-in-Die-Frau-im-Mittelalter-by-August-Bebel.pdf
    • http://unieoooq.linkpc.net/14e04e84e74e04e74e4/Die-Stellung-Der-Frau-Im-Reichsstrafgesetzbuch-Von-1870-71-Und-in-Den-Reformentwuerfen-Bis-1919-Im-Urteil-Der-Buergerlichen-Frauenbewegung-Eine-Analyse-Ausgewaehlter-Straftatbestaende-by-Alexandra-Gilde.pdf
    • http://unieoooq.linkpc.net/84e94e44e14e34e4/Typisch-Mann-typisch-Frau-Innere-Polarit-ten-erkennen-und-berbr-cken---in-der-Partnerschaft-und-in-der-Arbeit-by-Sagarpriya-DeLong.pdf
    • http://unieoooq.linkpc.net/14e14e14e54e74e64e4/Nie-mehr-Angst-vor-dem-Reiten-Die-Erfolgsmethode-f-r-Jedermann-Frau-Die-Erfolgsmethode-f-r-Jedermann-Frau-by-Birgit-Dresel.pdf
    • http://unieoooq.linkpc.net/14e14e94e34e84e04e6/Segeln-und-Motorman-ver-f-r-Fortgeschrittene-by-Willi-Kilian.pdf
    • http://unieoooq.linkpc.net/14e14e24e44e24e74e6/Wissensmanagement-Werkzeuge-f-r-Praktiker-by-Dietmar-Kilian.pdf
    • http://unieoooq.linkpc.net/34e24e24e04e64e8/The-Ironclad-Alibi-Harrison-Raines-3-by-Michael-Kilian.pdf
    • http://unieoooq.linkpc.net/94e64e34e44e04e0/Contes-Des-Pygmees-Baka-Du-Cameroun-by-Christa-Kilian-Hatz.pdf
    • http://unieoooq.linkpc.net/14e64e44e64e94e2/Rules-of-Conflict-Jani-Kilian-Chronicles-2-by-Kristine-Smith.pdf
    • http://unieoooq.linkpc.net/14e14e84e84e14e44e4/Thomas-Mann-Gesammelte-werke-Buddenbrooks-Der-Tod-in-Venedig-Tonio-Kr-ger-Der-kleine-Herr-Friedemann-Tristan-K-nigliche-Hoheit-Und-mehr-B-cher-by-Thomas-Mann.pdf
    • http://unieoooq.linkpc.net/94e54e04e94e04e8/Italian-Grill-by-Mario-Batali.pdf
    • http://unieoooq.linkpc.net/34e94e84e04e8/Shackleton-s-Journey-by-William-Grill.pdf
    • http://unieoooq.linkpc.net/24e94e14e24e6/The-Wolves-of-Currumpaw-by-William-Grill.pdf
    • http://unieoooq.linkpc.net/34e24e24e04e74e9/Murder-at-Manassas-A-Harrison-Raines-Civil-War-Mystery-by-Michael-Kilian.pdf
    • http://unieoooq.linkpc.net/14e14e84e94e04e24e9/Die-Frau-und-der-Sozialismus-Vollst-ndige-Ausgabe-Klassiker-der-sozialistischen-Literatur--

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