Malicious PDF — malware analysis report

Static analysis result for SHA-256 87069c22e166f6e8…

MALICIOUS

PDF

13.1 KB Created: 2019-04-29 23:12:50 +01:00 Authoring application: mPDF 5.7
MD5: 14573f012c4f235d810a5c892b656c65 SHA-1: 275ebd7ac91a9b890eee28219f21c892aa1cfaa2 SHA-256: 87069c22e166f6e872b4944260a044d03bd4b0dc6a213d19cab05dab37e202a6
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, which is a common technique for SEO poisoning or distributing malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of links suggests an attempt to lure users to external sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9831

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/3098093093090/The-Hot-Kid-Carl-Webster-1-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/7095090095091/The-Complete-Western-Stories-of-Elmore-Leonard-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/5090090092090096/Three-Ten-to-Yuma-and-Other-Stories-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/6095098090098/Fire-in-the-Hole-Stories-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/1096095094099/LaBrava-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/5099092099099/Raylan-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/3096092095090097/Cat-Chaser-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/3096093090099098/The-Moonshine-War-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/8095091095093/Swag-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/1093098098098094/Rum-Punch-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/4098096096096099/Djibouti-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/3095092095096098/The-Hunted-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/3099090092095094/Tishomingo-Blues-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/2096095094091099/Pagan-Babies-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/3096094099094093/A-Coyote-s-in-the-House-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/6093099093091/Road-Dogs-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/1097092090090099/Get-Shorty-Chili-Palmer-1-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/4095092090092092/Riding-the-Rap-Raylan-Givens-2-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/2090099098094090/The-Big-Bounce-Jack-Ryan-1-by-Elmore-Leonard.pdf
    • http://loaminoo.linkpc.net/5090091097091090/Dear-Enemy-by-Jean-Webster.pdf

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