Malicious PDF — malware analysis report

Static analysis result for SHA-256 f022d316e6e8cd31…

MALICIOUS

PDF

18.7 KB Created: 2019-05-07 09:20:32 +01:00 Authoring application: mPDF 5.7
MD5: 566933f4754da26474c9a92a9d60fb35 SHA-1: 42e2023cadca986daef30396f408041a9c90520e SHA-256: f022d316e6e8cd312213e7e349cb8e1194f604269ce22566e193b39ab9c5e810
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a link farm with 25 external links, primarily pointing to other PDF documents. The ML classifier also flagged this PDF as malicious with high confidence. The primary attack pattern observed is the creation of a link farm to direct users to potentially malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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://zacdsa.linkpc.net/4c51c51c52c56/Precious-and-the-Monkeys-Precious-Ramotswe-s-Very-First-Cases-1-by-Alexander-McCall-Smith.pdf
    • http://zacdsa.linkpc.net/3c51c58c53c53c53/Precious-and-the-Mystery-of-Meerkat-Hill-Precious-Ramotswe-s-Very-First-Cases-2-by-Alexander-McCall-Smith.pdf
    • http://zacdsa.linkpc.net/9c59c50c55c55/Devotion-to-the-Most-Precious-Blood-of-Our-Lord-Jesus-Christ-The-Greatest-Devotion-of-Our-Time-a-Call-to-Holiness-by-Apostolate-for-the-Precious-Blood.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c51c52/Frigid-by-Charles-A-Jones.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c59c50/Frigid-Wife-by-Orrie-Hitt.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c59c52/Frigid-Impact-by-Connie-McCarty.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c52c56/Medius-V-The-Frigid-Wastes-by-R-W-Holmes.pdf
    • http://zacdsa.linkpc.net/1c59c58c55c53c50/Frigid-Frenemy-1-by-Kate-Benson.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c50c59/Choke-Frigid-Emaciation-1-by-Serena-Siren.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c52c58/The-Far-Frigid-North-Scared-Spitless-by-Patrick-Marks.pdf
    • http://zacdsa.linkpc.net/9c57c53c53c59c55/Frigid-Winds-and-Burning-Hearts-by-Grey-Prophet.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c50c54/The-Cause-of-Warm-and-Frigid-Periods-by-Charles-Austin-Mendell-Taber.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c53c55/Confessions-of-a-Frigid-Man-A-Philosopher-s-Journey-into-the-Hidden-Layers-of-Men-s-Sexuality-by-Takeshi-Morisato.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c53c52/Frigid-A-Daring-Funny-and-Original-Novel-by-the-Best-Selling-Author-of-The-Hourglass-Man-by-Carl-Tiktin.pdf
    • http://zacdsa.linkpc.net/9c57c53c54c53c53/Fixing-The-Frigid-Wife-Bimbo-Milf-Cuckold-Brainless-Bimbos-Book-3-by-Alice-Locke.pdf
    • http://zacdsa.linkpc.net/5c59c50c58c51c54/The-Little-Boy-Who-Was-Precious-by-Reagan-Chesnut.pdf
    • http://zacdsa.linkpc.net/7c55c50c55c57/Precious-Pearls-by-Darussalam.pdf
    • http://zacdsa.linkpc.net/2c56c54c59c52c59/Ain-t-He-Precious-Sex-and-Sweet-Tea-1-by-Juliette-Poe.pdf
    • http://zacdsa.linkpc.net/2c58c55c58c51c50/The-Precious-Present-by-Spencer-Johnson.pdf
    • http://zacdsa.linkpc.net/1c52c55c53c51c59/A-Precious-Stone-by-Leslie-M-Arno.pdf

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