Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2aeee0b1c83af8d…

MALICIOUS

PDF

19.7 KB Created: 2019-05-04 12:37:34 +01:00 Authoring application: mPDF 5.7
MD5: f9fb7c8263f632e85ad863d80b53fb4b SHA-1: db28c34904fc4fcc3ed2dcccfbac1cc9f1a23f74 SHA-256: c2aeee0b1c83af8dc80794c4fcbb2960dffb598eee4d31059de1bc4f92b34df0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. While the ML classifier flagged it as malicious with high confidence, the specific intent beyond link distribution is unclear due to the lack of executable scripts or clear document body content. The URLs themselves are marked as confirmed benign, but their sheer volume and the heuristic firing indicate a malicious intent in the file's construction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9922

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/8092090092096090/La-m-thode-France-Guillain-Vivez-quilibr-by-France-Guillain.pdf
    • http://loaminoo.linkpc.net/5098097093090096/Le-Miam-O-5-Le-repas-universel-5-l-ments-by-France-Guillain.pdf
    • http://loaminoo.linkpc.net/6092096097092091/Lais-of-Marie-de-France-Chevrefoil-Eliduc-Yonec-Guigemar-Lanval-Bisclavret-Le-Fresne-the-Lais-of-Marie-de-France-Lastic-Equitan-by-Marie-Dec-France.pdf
    • http://loaminoo.linkpc.net/6091094093097094/Beautiful-European-churches-and-abbeys-France-Part-5-Southeastern-France-East-of-Conques-by-Kiyoto-Motojima.pdf
    • http://loaminoo.linkpc.net/1091099093094095091/Quinze-ans-de-politiques-d-innovation-en-France-by-France-Strat-gie.pdf
    • http://loaminoo.linkpc.net/6097091091090097/Emission-Diffusee-Sur-France-2-Intervilles-Telethon-En-France-on-N-Demande-Qu-a-En-Rire-N-Oubliez-Pas-Les-Paroles-Faites-Entrer-L-Accuse-by-Source-Wikipedia.pdf
    • http://loaminoo.linkpc.net/8091093093090093/Animal-A-Beastly-Compendium-Treasures-from-the-Prints-and-Photographs-Department-at-the-Bibliothaeque-Nationale-de-France-by-Biblioth-Eque-Nationale-de-France.pdf
    • http://loaminoo.linkpc.net/7090097095097092/Histoire-De-France-En-Bandes-Dessin-es-No-20---La-Commune-La-Troisieme-R-publique-Histoire-De-France-20-by-Jean-Ollivier.pdf
    • http://loaminoo.linkpc.net/8092090092095096/The-Sun-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090091096091/Mermaids-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090091096093/The-Empty-Pot-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090092095095/My-First-Day-at-a-New-School-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090092094097/Bug-Senses-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090092094095/Czech-Republic-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090092093099/Doughnuts-for-a-Dragon-by-Adam-Guillain.pdf
    • http://loaminoo.linkpc.net/7098099090096095/Roald-Dahl-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090092094098/Cleaning-Up-Litter-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090091095098/Little-Red-Riding-Duck-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/8092090092093090/Guillain-Barr-syndrome-by-Allan-H-Ropper.pdf
    • http://loaminoo.linkpc.net/8092090091094096/The-Street-Beneath-My-Feet-by-Charlotte-Guillain.pdf
    • http://loaminoo.linkpc.net/6097091091090097/Emission-Diffusee-Sur-France-2-Intervi