Malicious PDF — malware analysis report

Static analysis result for SHA-256 53ede440fdcc1d88…

MALICIOUS

PDF

15.9 KB Created: 2019-05-02 18:07:47 +01:00 Authoring application: mPDF 5.7
MD5: b5d091191dce60a6e5aaa9ba3860cb1b SHA-1: 99160ec972dc49c25589341a296f128db70510fe SHA-256: 53ede440fdcc1d88faf0fc985f2b091f6a4fb9da8ef81ab350691d0fc14872eb
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. While the specific URLs appear benign, the sheer volume and structure suggest a malicious intent, possibly for SEO manipulation or to serve as a landing page for further malicious activity. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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/5097097092090094/The-Big-Bad-Wolf-and-Me-by-Delphine-Perret.pdf
    • http://loaminoo.linkpc.net/7099091096097097/The-Big-Bad-Wolf-Goes-on-Vacation-by-Delphine-Perret.pdf
    • http://loaminoo.linkpc.net/7099092091090095/Gene-Perret-s-Funny-Business-Speaker-s-Treasury-of-Business-Humor-for-All-Occasions-by-Gene-Perret.pdf
    • http://loaminoo.linkpc.net/7099091096097096/Jack-A-Life-Like-No-Other-by-Geoffrey-Perret.pdf
    • http://loaminoo.linkpc.net/7099091099095091/Unleashing-Your-Creativity-After-50-by-Gene-Perret.pdf
    • http://loaminoo.linkpc.net/7099092090095094/Someday-I-Want-to-Go-All-the-Places-My-Luggage-Has-Been-by-Gene-Perret.pdf
    • http://loaminoo.linkpc.net/7099092091091092/Business-Humor-Jokes-How-To-Deliver-Them-by-Gene-Perret.pdf
    • http://loaminoo.linkpc.net/7099091096098093/Winged-Victory-The-Army-Air-Forces-in-World-War-II-by-Geoffrey-Perret.pdf
    • http://loaminoo.linkpc.net/7099092090099095/Become-a-Richer-Writer-Shift-Your-Writing-Career-Into-High-Gear-by-Gene-Perret.pdf
    • http://loaminoo.linkpc.net/2098098098093090/No-and-Me-by-Delphine-de-Vigan.pdf
    • http://loaminoo.linkpc.net/7099092090096096/Breakfasts-with-Archangel-Shecky-And-His-Infallible-Irrefutable-Unassailable-One-Size-Fits-All-Secrets-of-Success-by-Gene-Perret.pdf
    • http://loaminoo.linkpc.net/3096095092095091/Delphine-by-Richard-Sala.pdf
    • http://loaminoo.linkpc.net/9097099096096/Delphine-Dodd-by-S-P-Miskowski.pdf
    • http://loaminoo.linkpc.net/5096090093098099/Delphine-by-Germaine-de-Sta-l.pdf
    • http://loaminoo.linkpc.net/3092098097097098/Clockwork-Countess-by-Delphine.pdf
    • http://loaminoo.linkpc.net/3098094093090092/Delphine-The-Acadians-4-by-Cherie-Claire.pdf
    • http://loaminoo.linkpc.net/8096094094097090/Lo-que-no-sabes-de-mi-amor-by-Delphine-Bertholon.pdf
    • http://loaminoo.linkpc.net/9097091092093091/Top-to-Bottom-Escape-3-by-Delphine-Dryden.pdf
    • http://loaminoo.linkpc.net/9097091090099099/Art-of-the-Lie-Truth-and-Lies-2-by-Delphine-Dryden.pdf
    • http://loaminoo.linkpc.net/9097090091095098/Delphine-Unsterblich-by-Daniela-Igelhorst.pdf

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