Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5c555d8ca0905bc…

MALICIOUS

PDF

15.5 KB Created: 2019-05-02 17:44:04 +01:00 Authoring application: mPDF 5.7
MD5: 99165713e04ffb9f5c815600f235316d SHA-1: e91c39fc65fcd8d7b2a1f15c6794d35702c08451 SHA-256: f5c555d8ca0905bc0f9857438d89548b42db556c42b0c93f24406bf021c47c15
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF document contains a large number of embedded URLs, forming a link farm. The primary heuristic indicates a "PDF_SEO_LINK_FARM" with many external links, suggesting a tactic to drive traffic to other sites. While the ML classifier also flagged the PDF as malicious, the specific intent beyond linking appears to be traffic generation or potentially hosting further malicious content on the linked sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/8095090093098090/Moi-Pierre-Seel-d-port-homosexuel-Ecrit-en-collaboration-avec-Jean-Le-Bitoux-by-Pierre-Seel.pdf
    • http://loaminoo.linkpc.net/1090092095098099095/Lgbt-History-in-France-Pierre-Seel-by-Books-LLC.pdf
    • http://loaminoo.linkpc.net/5099092091094094/Les-fess-es-et-les-premi-res-photos-rotiques-Remonter-le-temps-avec-t-2-by-Pierre-Diemoz.pdf
    • http://loaminoo.linkpc.net/5093097096097095/Pierre-Deux-s-French-Country-by-Pierre-Moulin.pdf
    • http://loaminoo.linkpc.net/1090092096092091095/Get-Up-and-RUN-by-Alan-Seel.pdf
    • http://loaminoo.linkpc.net/5094093096093093/La-Seduction-Policiere-Signes-de-Croissance-D-Un-Genre-Repute-Mineur-Pierre-Magnan-Daniel-Pennac-Et-Quelques-Autres-by-Pierre-Verdaguer.pdf
    • http://loaminoo.linkpc.net/1090092096092091093/How-I-Built-My-Deck-by-Alan-Seel.pdf
    • http://loaminoo.linkpc.net/1090092096092092093/The-Arts-of-Cinema-by-Martin-Seel.pdf
    • http://loaminoo.linkpc.net/7094095090097095/Le-Bapteme-de-L-Air-by-Jean-Pierre-Enard.pdf
    • http://loaminoo.linkpc.net/1090092095099097096/Essentials-for-the-Christian-Life-by-Alan-Seel.pdf
    • http://loaminoo.linkpc.net/7099094097098092/Hitchcock-Style-by-Jean-Pierre-Dufreigne.pdf
    • http://loaminoo.linkpc.net/5097099090098095/Le-pi-ge-Daech-by-Pierre-Jean-Luizard.pdf
    • http://loaminoo.linkpc.net/8091093098099090/Peuls-Roman-by-Jean-Pierre-ESTIVAL.pdf
    • http://loaminoo.linkpc.net/6090092095093094/Les-Feux-Meurtriers-by-Jean-Pierre-Fabre.pdf
    • http://loaminoo.linkpc.net/6099090093090091/Pierre-Laval-by-Jean-Paul-Cointet.pdf
    • http://loaminoo.linkpc.net/7095090099097095/Traite-Du-Debutant-by-Jean-Pierre-Prevost.pdf
    • http://loaminoo.linkpc.net/4094094095092099/Conquering-Armies-by-Jean-Pierre-Dionnet.pdf
    • http://loaminoo.linkpc.net/7091090095097095/The-Universe-the-Gods-and-Men-by-Jean-Pierre-Vernant.pdf
    • http://loaminoo.linkpc.net/6096094092091092/Les-Sentiers-D-Un-Geoagronome-by-Jean-Pierre-Deffontaines.pdf
    • http://loaminoo.linkpc.net/7098099093096092/En-Pique-Nique-by-Jean-Pierre-Enard.pdf

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