Malicious PDF — malware analysis report

Static analysis result for SHA-256 f65bf6c1df8b1d77…

MALICIOUS

PDF

15.7 KB Created: 2019-05-02 19:26:31 +01:00 Authoring application: mPDF 5.7
MD5: 2432f2fb7421c1ff36d5e2358609dddd SHA-1: 497457d0c2e3d57f62a50c42df3365208c48bfea SHA-256: f65bf6c1df8b1d773d0d802905cd044c88dfd3a328ae1bb091c657954db40f9f
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, a technique often used for SEO spam or to distribute malicious content. The ML classifier also flagged this PDF as malicious. While the URLs themselves are currently marked as benign, the sheer volume and the heuristic firing indicate a malicious intent, likely to redirect users to harmful sites or to manipulate search engine results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9778

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/4092090095095095/The-Mystic-Warriors-of-the-Plains-The-Culture-Arts-Crafts-and-Religion-of-the-Plains-Indians-by-Thomas-E-Mails.pdf
    • http://loaminoo.linkpc.net/1094096098091093/High-Plains-Holiday-Love-on-the-High-Plains-1-by-Simone-Beaudelaire.pdf
    • http://loaminoo.linkpc.net/2090091094096094/High-Plains-Promise-Love-on-the-High-Plains-2-by-Simone-Beaudelaire.pdf
    • http://loaminoo.linkpc.net/4092091090096092/Quest-for-Quivira-Spanish-Explorers-on-the-Great-Plains-1540-1821-by-Thomas-E-Ch-vez.pdf
    • http://loaminoo.linkpc.net/5095094096097094/The-Mystic-Arts-of-the-Ninja-the-Mystic-Arts-of-the-Ninja-by-Stephen-K-Hayes.pdf
    • http://loaminoo.linkpc.net/3092091099092090/The-Plains-by-Gerald-Murnane.pdf
    • http://loaminoo.linkpc.net/6093099093095/Great-Plains-by-Ian-Frazier.pdf
    • http://loaminoo.linkpc.net/3090098095095/Plains-Song-by-Wright-Morris.pdf
    • http://loaminoo.linkpc.net/5090092091095097/Thunder-on-the-Plains-by-Rosanne-Bittner.pdf
    • http://loaminoo.linkpc.net/7096097094094/Unforgiving-Plains-by-Christine-Steendam.pdf
    • http://loaminoo.linkpc.net/2092098098091099/Shifting-Plains-by-Jean-Johnson.pdf
    • http://loaminoo.linkpc.net/3098096091091098/Mystic-Warriors-Mystic-3-by-Rosanne-Bittner.pdf
    • http://loaminoo.linkpc.net/5090091096096097/Knight-On-The-Texas-Plains-by-Linda-Broday.pdf
    • http://loaminoo.linkpc.net/1091097094094091094/Computerized-Accounting-Using-Great-Plains-Dynamic-by-Arens.pdf
    • http://loaminoo.linkpc.net/3092098091095099/The-Plains-of-Passage-Earth-s-Children-4-by-Jean-M-Auel.pdf
    • http://loaminoo.linkpc.net/1093096094094099/The-Plains-of-Passage-Earth-s-Children-4-by-Jean-M-Auel.pdf
    • http://loaminoo.linkpc.net/8095093098090099/A-Cowboy-for-Caleb-Great-Plains-Shifters-1-by-L-C-Davis.pdf
    • http://loaminoo.linkpc.net/2092096090094094/Homesteading-the-Plains-Toward-a-New-History-by-Richard-Cluff-Edwards.pdf
    • http://loaminoo.linkpc.net/8090091090091/Dirt-Songs-A-Plains-Duet-by-Twyla-M-Hansen.pdf
    • http://loaminoo.linkpc.net/3092094090093/My-ntonia-Great-Plains-Trilogy-3-by-Willa-Cather.pdf

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