Malicious PDF — malware analysis report

Static analysis result for SHA-256 1092fbc071fadb9f…

MALICIOUS

PDF

15.8 KB Created: 2019-05-02 17:12:03 +01:00 Authoring application: mPDF 5.7
MD5: 05dc2bf81fb9823f3da8d3a3e44674f1 SHA-1: 7713a56c640c4ef3f7964c6cb121b4e84292fbc6 SHA-256: 1092fbc071fadb9f5ac49b5207748f96163dad30700171e7bc65cac2c4185ffe
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs, identified as a link farm. While the URLs themselves are currently classified as benign, the sheer volume and the heuristic firing of 'PDF_SEO_LINK_FARM' suggest a malicious intent, possibly for SEO manipulation or to distribute further malicious content. The ML classifier also flagged the document as malicious. No scripts were extracted, but the structure implies an attempt to redirect users to external resources.

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/9097099094091095/My-Best-Friend-s-Boyfriend-by-G-A-Hauser.pdf
    • http://loaminoo.linkpc.net/1090091097091/The-Backup-Boyfriend-The-Boyfriend-Chronicles-1-by-River-Jaymes.pdf
    • http://loaminoo.linkpc.net/9097099092094095/The-Guide-to-Hauser-s-Erotic-Universe-by-G-A-Hauser.pdf
    • http://loaminoo.linkpc.net/2099099097092092/My-Pregnant-Boyfriend-My-Boyfriend-is-4-by-Elizabeth-Monvey.pdf
    • http://loaminoo.linkpc.net/1090095090097095096/The-Perfect-Boyfriend-Boyfriend-2-by-R-S-Novelle.pdf
    • http://loaminoo.linkpc.net/3096099097097097/Any-Friend-of-God-s-is-a-Friend-of-Mine-A-Biblical-amp-Historical-Exploration-of-the-Catholic-Doctrine-of-the-Communion-of-Saints-by-Patrick-Madrid.pdf
    • http://loaminoo.linkpc.net/9094094094092095/Kaspar-Hauser-Speaks-for-Himself-Kaspar-s-Own-Writings-by-Kaspar-Hauser.pdf
    • http://loaminoo.linkpc.net/1091096094092099093/-SOBLESSED-the-Annoying-Actor-Friend-s-Guide-to-Werking-in-Show-Business-by-Annoying-Actor-Friend.pdf
    • http://loaminoo.linkpc.net/4097093093094094/In-Love-With-My-Best-Friend-In-Love-With-My-Best-Friend-1-by-Sheena-Binkley.pdf
    • http://loaminoo.linkpc.net/7090091091091096/Friend-Zoned-Friend-Zoned-1-by-Belle-Aurora.pdf
    • http://loaminoo.linkpc.net/1099098096091091/My-Best-Friend-s-Brother-My-Best-Friend-s-Brother-1-by-Chrissy-Fanslau.pdf
    • http://loaminoo.linkpc.net/9097099091091096/The-Art-of-Up-by-Tim-Hauser.pdf
    • http://loaminoo.linkpc.net/2098099096096094/The-Boyfriend-by-R-Raj-Rao.pdf
    • http://loaminoo.linkpc.net/9097099092094096/Going-Deep-by-G-A-Hauser.pdf
    • http://loaminoo.linkpc.net/3092092095095093/The-Hard-Way-by-G-A-Hauser.pdf
    • http://loaminoo.linkpc.net/9097099093090096/To-Have-And-To-Hostage-by-G-A-Hauser.pdf
    • http://loaminoo.linkpc.net/9097099093090093/Getting-it-in-the-End-Action-3-by-G-A-Hauser.pdf
    • http://loaminoo.linkpc.net/9097099093090098/Marry-Me-by-G-A-Hauser.pdf
    • http://loaminoo.linkpc.net/3092097095093092/Teacher-s-Pet-by-G-A-Hauser.pdf
    • http://loaminoo.linkpc.net/2096090095093097/Born-to-Please-by-G-A-Hauser.pdf

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