Malicious PDF — malware analysis report

Static analysis result for SHA-256 c84fea42ca73d81e…

MALICIOUS

PDF

21.1 KB Created: 2019-05-01 20:12:07 +01:00 Authoring application: mPDF 5.7
MD5: 85952a3220faf43f184dec8be384ca4f SHA-1: 2752b2f24002e1961d98dbc5fcf303752a03aaa4 SHA-256: c84fea42ca73d81ec51467bd983bad237d6ea59f001f2e0b6eef5874f25b63c3
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded external links. The heuristic 'PDF_SEO_LINK_FARM' indicates that these links are likely part of a scheme to artificially inflate search engine rankings or direct users to potentially harmful content. While the specific intent beyond link farming is unclear due to the lack of executable scripts or a clear document body, the sheer volume of links suggests a malicious distribution or SEO poisoning attempt.

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://unieoooq.linkpc.net/94e54e54e64e54e3/Die-K-nige-Reihe-in-3-B-nden-by-Michael-Peinkofer.pdf
    • http://unieoooq.linkpc.net/94e54e54e64e54e6/Las-puertas-del-infierno-by-Peinkofer-Michael.pdf
    • http://unieoooq.linkpc.net/94e54e54e64e14e8/Land-der-Mythen-4-Das-vierte-Buch-by-Michael-Peinkofer.pdf
    • http://unieoooq.linkpc.net/94e54e54e64e14e1/Land-der-Mythen-6-Das-sechste-Buch-by-Michael-Peinkofer.pdf
    • http://unieoooq.linkpc.net/84e44e64e24e84e5/Die-Geheimnisse-des-Nicholas-Flamel-Reihe-in-6-B-nden-by-Michael-Scott.pdf
    • http://unieoooq.linkpc.net/94e14e64e84e54e1/Again-Reihe-Reihe-in-3-B-nden-by-Mona-Kasten.pdf
    • http://unieoooq.linkpc.net/14e04e84e94e44e54e5/S-Mmtliche-Werke-In-Vierzig-B-Nden-Volumes-19-20-by-Johann-Wolfgang-von-Goethe.pdf
    • http://unieoooq.linkpc.net/94e54e54e54e34e3/Losing-Patience-The-Problems-Alarms-and-Psychological-Issues-of-Shaken-Baby-Syndrome-by-James-Peinkofer.pdf
    • http://unieoooq.linkpc.net/14e14e44e14e54e04e6/G-ldene-Aepfel-in-Silbernen-Schalen-Das-Ist-Worte-Geredet-Zu-Seiner-Zeit-ber-400-Sinnbilder-Von-Allerley-Zeiten-Und-Umst-nden-Des-Menschlichen-Lebens-Zu-Bef-rderung-Der-Erbauung-by-Johann-Andreas-Pfeffel.pdf
    • http://unieoooq.linkpc.net/14e14e14e64e14e44e1/Mari-H-chst-Wunderbarliche-Und-Ohne-Alle-S-nden-Mackl-Gnaden-Reich-Beschehene-Empf-ngnu-In-Hunderterley-Si--Bildern-Vorgestellt-Nit-Minder-Zu-Nutzen-De-Teutschen-Lesers-in-Gemeiner-Mutter-Schprach-Durch-Gleich-Lauffende-Vers-Deutlich-Erkl-ret-by-Joseph-Zoller.pdf
    • http://unieoooq.linkpc.net/14e14e14e44e94e84e0/Bunte-Reihe-by-Georg-B-tticher.pdf
    • http://unieoooq.linkpc.net/84e64e04e84e24e6/Nachtschatten-Reihe-in-3-B-nden-by-Juliane-Seidel.pdf
    • http://unieoooq.linkpc.net/54e34e14e94e04e3/Infernale-Reihe-in-2-B-nden-by-Sophie-Jordan.pdf
    • http://unieoooq.linkpc.net/14e04e14e24e94e34e9/Geile-Luder-Reihe-H-hepunkte-by-M-C-Hanlon.pdf
    • http://unieoooq.linkpc.net/94e64e24e24e54e7/Codex-Alera-Reihe-in-6-B-nden-by-Jim-Butcher.pdf
    • http://unieoooq.linkpc.net/14e04e54e94e44e24e5/Die-G-tterkriege-Reihe-in-7-B-nden-by-Richard-Schwartz.pdf
    • http://unieoooq.linkpc.net/14e04e64e34e54e94e2/Nashira-Reihe-in-2-B-nden-by-Licia-Troisi.pdf
    • http://unieoooq.linkpc.net/84e74e44e64e24e9/Greatcoats-Reihe-in-3-B-nden-by-Sebastien-de-Castell.pdf
    • http://unieoooq.linkpc.net/94e14e94e64e64e3/Das-Buch-der-Gef-hrten-Reihe-in-3-B-nden-by-R-A-Salvatore.pdf
    • http://unieoooq.linkpc.net/94e34e94e84e54e2/Lippel-Reihe-in-2-B-nden-by-Paul-Maar.pdf