Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bf460061659b9eb…

MALICIOUS

PDF

20.6 KB Created: 2019-04-30 17:24:40 +01:00 Authoring application: mPDF 5.7
MD5: 0c42632a51b8bf2182d3bba14c53b9f9 SHA-1: f4c758474b5df52da0de9366243ad8604ce05833 SHA-256: 9bf460061659b9ebc7c5a98ff145d936d4bd1746807df2865aeea769d6bd7e13
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF contains a large number of embedded URLs, forming a link farm. The heuristic PDF_SEO_LINK_FARM indicates that this is a technique to drive traffic to external sites, likely for SEO manipulation or to 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 0.9922

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/3093092092092094/Sow-the-Dragon-s-Teeth-by-Howard-G-Martin.pdf
    • http://loaminoo.linkpc.net/5092092090098092/Pulling-a-Dragon-s-Teeth-by-Shao-Wei.pdf
    • http://loaminoo.linkpc.net/5097099099/Dragon-Teeth-by-Michael-Crichton.pdf
    • http://loaminoo.linkpc.net/7096090095092093/Dragon-s-Teeth-Martis-2-by-Mercedes-Lackey.pdf
    • http://loaminoo.linkpc.net/2093092095097/Dragon-s-Teeth-The-Lanny-Budd-Novels-by-Upton-Sinclair.pdf
    • http://loaminoo.linkpc.net/1095091098094091/The-Mystery-of-Dragon-Bridge-A-Peach-Blossom-Village-Story-by-Ann-Howard.pdf
    • http://loaminoo.linkpc.net/4095093092095097/Shaun-the-Sheep-The-Flock-Factor-by-Martin-Howard.pdf
    • http://loaminoo.linkpc.net/3097094092096097/G-A-Aiken-Dragon-Bundle-The-Dragon-Who-Loved-Me-What-a-Dragon-Should-Know-Last-Dragon-Standing-amp-How-to-Drive-a-Dragon-Crazy-The-Dragon-Kin-3-6-by-G-A-Aiken.pdf
    • http://loaminoo.linkpc.net/4093090094097091/The-Ice-Dragon-by-George-R-R-Martin.pdf
    • http://loaminoo.linkpc.net/1097092092094090/Jane-and-the-Dragon-by-Martin-Baynton.pdf
    • http://loaminoo.linkpc.net/4099093097095099/Dragon-Prince-Series-Including-Melanie-Rawn-Dragon-Prince-Sunrunner-s-Fire-the-Star-Scroll-Sunrunner-High-Prince-Stronghold-Novel-the-Dragon-Token-Skybowl-Dragon-Prince-and-Dragon-Star-Trilogies-Diarmadhi-Merida-Dragon-Prince-Isulk-im-by-Hephaestus-Books.pdf
    • http://loaminoo.linkpc.net/4096094095095096/Rise-of-the-Red-Dragon-Tales-of-the-Lorekeepers-1-by-Martin-Rouillard.pdf
    • http://loaminoo.linkpc.net/3098096098090095/Waking-The-Dragon-Hard-Whispers-2-by-Pamela-Martin.pdf
    • http://loaminoo.linkpc.net/2096093090093098/Dragon-s-Baby-Red-Planet-Dragons-of-Tajss-1-by-Miranda-Martin.pdf
    • http://loaminoo.linkpc.net/2096093090094091/Dragon-s-Mate-Red-Planet-Dragons-of-Tajss-2-by-Miranda-Martin.pdf
    • http://loaminoo.linkpc.net/4093094097095091/Kiss-of-Flame-The-Dragon-s-Virgin-Tribute-1-by-Madelene-Martin.pdf
    • http://loaminoo.linkpc.net/6092093095094090/La-Triade-De-La-Pierre-Sacr-e---Livre-II-Le-Dragon-by-Aur-lie-Chateaux-Martin.pdf
    • http://loaminoo.linkpc.net/1095094095090093/The-Forest-of-Hands-and-Teeth-The-Forest-of-Hands-and-Teeth-1-by-Carrie-Ryan.pdf
    • http://loaminoo.linkpc.net/2093094098099091/Call-of-the-Dragon-a-Dragon-Fantasy-Adventure-Dragon-Riders-of-Elantia-Book-1-by-Jessica-Drake.pdf
    • http://loaminoo.linkpc.net/1098095096098090/The-Conan-Chronicles-Volume-2-The-Hour-of-the-Dragon-The-Conan-Chronicles-2-by-Robert-E-Howard.pdf

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