Malicious PDF — malware analysis report

Static analysis result for SHA-256 0da3686a03696e5f…

MALICIOUS

PDF

19.9 KB Created: 2019-06-04 10:04:45 +01:00 Authoring application: mPDF 5.7
MD5: 57c4db91eabf2b2724e7aed9bd0e440f SHA-1: b8e92c1978a396b747a4c6bef90831869d6ee423 SHA-256: 0da3686a03696e5ffe236ecbae3efd12a21a446655d87af20800f490f3a9a323
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded external links, many of which are structured as book titles with numeric slugs. This pattern is indicative of a link farm designed to drive traffic or potentially host malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://cefasfese.4pu.com/8730734732736/Arctic-Homestead-The-True-Story-of-One-Family-s-Survival-and-Courage-in-the-Alaskan-Wilds-by-Norma-Cobb.pdf
    • http://cefasfese.4pu.com/2738730735737731/The-Passover-Plot-by-Hugh-J-Schonfield.pdf
    • http://cefasfese.4pu.com/1730735737732730732/Passover-Its-History-And-Traditions-by-Theodor-Herzl-Gaster.pdf
    • http://cefasfese.4pu.com/7730739738736738/As-If-We-Were-There-Readings-for-a-Transformative-Passover-Experience-by-Gidon-Rothstein.pdf
    • http://cefasfese.4pu.com/5730734733730737/Flower-in-the-Hills-Norma-Jean-Lutz-Classic-Collection-by-Norma-Jean-Lutz.pdf
    • http://cefasfese.4pu.com/1733731731732734/Descent-The-R-Connors-Story-by-Simon-Cleveland.pdf
    • http://cefasfese.4pu.com/3739737739734732/The-Story-of-Beautiful-Girl-by-Rachel-Simon.pdf
    • http://cefasfese.4pu.com/8733738733733736/The-Wreck-of-the-Batavia-A-True-Story-by-Simon-Leys.pdf
    • http://cefasfese.4pu.com/2733738732730732/The-Meaning-of-Everything-The-Story-of-the-Oxford-English-Dictionary-by-Simon-Winchester.pdf
    • http://cefasfese.4pu.com/1731734732739732/Unjustifiable-Risk-The-Story-Of-British-Climbing-by-Simon-Thompson.pdf
    • http://cefasfese.4pu.com/3731738730731732/The-Bumper-Book-of-Simon-s-Cat-Simon-s-Cat-4-75-by-Simon-Tofield.pdf
    • http://cefasfese.4pu.com/2730738735733736/Simon-Ships-Out-A-heroic-cat-at-sea-Based-on-a-true-story-by-Jacky-Donovan.pdf
    • http://cefasfese.4pu.com/8732730739738/The-Story-of-the-Jews-Finding-the-Words-1000-BCE-1492-CE-by-Simon-Schama.pdf
    • http://cefasfese.4pu.com/5735734732730730/Wreckers-of-Civilisation-The-Story-of-COUM-Transmissions-and-Throbbing-Gristle-by-Simon-Ford.pdf
    • http://cefasfese.4pu.com/3737739737730733/Simon-Says-A-True-Story-of-Boys-and-Murder-in-the-Rocky-Mountain-West-by-Kathryn-Eastburn.pdf
    • http://cefasfese.4pu.com/2735737735732732/One-Day-in-September-The-Story-of-the-1972-Munich-Olympics-Massacre-a-Government-Cover-Up-and-a-Covert-Revenge-Mission-by-Simon-Reeve.pdf
    • http://cefasfese.4pu.com/3737735732734733/Simon-Said-Professor-Simon-Shaw-1-by-Sarah-R-Shaber.pdf
    • http://cefasfese.4pu.com/3732738739735730/Mom-the-Wolf-Man-and-Me-by-Norma-Klein.pdf
    • http://cefasfese.4pu.com/1731732738731736/It-s-OK-If-You-Don-t-Love-Me-by-Norma-Klein.pdf
    • http://cefasfese.4pu.com/1731732737732738/The-Queen-of-the-What-Ifs-by-Norma-Klein.pdf

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