Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0e8a55c7a6136f2…

MALICIOUS

PDF

26.4 KB Created: 2019-04-30 02:49:08 +01:00 Authoring application: mPDF 5.7
MD5: 092b6c02a7c3f15bb4842994dbd93df0 SHA-1: fe66a8b578d478e72a9a1f526d4524d1dabbebce SHA-256: c0e8a55c7a6136f27ade2f70cd71ffb2bc919fb8955b08add752637b6a61342d
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, forming a link farm. This technique is often used to artificially inflate search engine rankings or to distribute malicious payloads through seemingly benign links. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9695

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://muicuiu.dumb1.com/1a04a03a03a07a06/Jane-and-the-Ghosts-of-Netley-Jane-Austen-Mysteries-7-by-Stephanie-Barron.pdf
    • http://muicuiu.dumb1.com/4a09a00a09a09a06/Jane-and-the-Ghosts-of-Netley-Jane-Austen-Mysteries-7-by-Stephanie-Barron.pdf
    • http://muicuiu.dumb1.com/2a06a04a04a06a07/Jane-and-the-Twelve-Days-of-Christmas-Jane-Austen-Mysteries-12-by-Stephanie-Barron.pdf
    • http://muicuiu.dumb1.com/1a04a01a02a06a09/Jane-and-the-Prisoner-of-Wool-House-Jane-Austen-Mysteries-6-by-Stephanie-Barron.pdf
    • http://muicuiu.dumb1.com/1a05a07a09a07a06/Jane-and-the-Twelve-Days-of-Christmas-Jane-Austen-Mysteries-12-by-Stephanie-Barron.pdf
    • http://muicuiu.dumb1.com/1a04a01a04a00a06/Jane-and-the-Stillroom-Maid-Jane-Austen-Mysteries-5-by-Stephanie-Barron.pdf
    • http://muicuiu.dumb1.com/1a01a07a07a01a00a03/Four-Major-Works-by-Jane-Austen-Northanger-Abbey-Lady-Susan-Sense-and-Sensibility-Pride-and-Prejudice-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/9a08a00a07a07/Oakshot-Complete-Works-of-Jane-Austen-Illustrated-Inline-Footnotes-Classics-Book-7-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/5a09a03a03a08a02/Sense-and-Sensibility-By-Jane-Austen-Illustrated-amp-Unabridged-Free-Bonus-Audiobook-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/8a06a03a00a04a04/Die-Jane-Austen-Collection-Gesamtausgabe-Stolz-und-Vorurteil-Verstand-und-Gef-hl-Emma-berredung-Mansfield-Park-Die-Abtei-von-Northanger-IDP-Classics-German-Edition-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/5a09a03a04a08a02/Mansfield-Park-By-Jane-Austen---Illustrated-Comes-with-a-Free-Audiobook-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/5a02a09a03a04a05/Jane-Austen---Emma-Vollst-ndige-deutsche-Ausgabe-IDP-Classics-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/1a01a07a06a09a02a08/Jane-Austen-Pride-and-Prejudice---Northanger-Abbey---Persuasion-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/5a05a08a04a06a05/The-Novels-of-Jane-Austen-Northanger-Abbey-In-Ten-Volumes-Vol-IX-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/1a00a08a06a05a00a02/Jane-Austen-Doppelband-Stolz-und-Vorurteil-Emma-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/5a02a04a07a08a03/Jane-Austen---Le-Parc-de-Mansfield-ou-les-Trois-cousines---4-Tomes---annot-Titre-original-Mansfield-Park-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/1a01a07a06a09a03a01/The-Complete-Works-of-Jane-Austen-In-One-Volume-Sense-and-Sensibility-Pride-and-Prejudice-Mansfield-Park-Emma-Northanger-Abbey-Persuasion-Lady-Sandition-and-the-Complete-Juvenilia-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/6a02a09a08a02a04/The-Juvenilia-of-Jane-Austen-and-Charlotte-Bront-by-Jane-Austen.pdf
    • http://muicuiu.dumb1.com/2a03a07a08a00a07/What-Killed-Jane-Austen-And-Other-Medical-Mysteries-by-George-Biro.pdf
    • http://muicuiu.dumb1.com/1a06a05a02a03a00/Rude-Awakenings-of-a-Jane-Austen-Addict-Jane-Austen-Addict-2-by-Laurie-Viera-Rigler.pdf
    • http://muicuiu.dumb1.com/9a08a00a07a07/Oakshot-Complete-Works-of-Jane-Austen-Illustrated-Inline-Footnotes-Classics-Book-7-by-

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