Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2cc2325df1fa72f…

MALICIOUS

PDF

15.3 KB Created: 2019-05-02 10:42:21 +01:00 Authoring application: mPDF 5.7
MD5: 1d174323d6f2df9d43e4723acc144822 SHA-1: a388c2e73aefd0c5802790054d9a6acab8f2e0cd SHA-256: c2cc2325df1fa72f07b724a45e3efd1607b6ceb7afe39af79a412f8a669f8faf
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, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or distribution mechanism. While the ML classifier strongly indicates maliciousness, the specific intent beyond hosting links is unclear due to the lack of executable scripts and the benign reputation of the extracted URLs. The attack pattern is inferred from the heuristic firing and the nature of the embedded content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9880

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/2098093095092094/Where-the-Heart-Is-by-Billie-Letts.pdf
    • http://loaminoo.linkpc.net/9096095099092/Shoot-for-the-Moon-by-Hope-St-Amant.pdf
    • http://loaminoo.linkpc.net/4095095097096092/Shoot-The-Moon-Scorpio-Stinger-MC-6-by-Jani-Kay.pdf
    • http://loaminoo.linkpc.net/4092096092092091/Wishing-on-the-Moon-The-Life-and-Times-of-Billie-Holiday-by-Donald-Clarke.pdf
    • http://loaminoo.linkpc.net/1091097091091093098/Billie-s-Blues-The-Billie-Holiday-Story-1933-1959-by-John-Chilton.pdf
    • http://loaminoo.linkpc.net/9093092094091092/Shoot-for-the-Moon-Lessons-on-Life-from-a-Dog-Named-Rudy-Tao-of-Rudy-2-by-Corinne-Humphrey.pdf
    • http://loaminoo.linkpc.net/4099093095097090/Bug-by-Tracy-Letts.pdf
    • http://loaminoo.linkpc.net/2093093099095/The-Minutes-by-Tracy-Letts.pdf
    • http://loaminoo.linkpc.net/6091093092095093/Superior-Donuts-by-Tracy-Letts.pdf
    • http://loaminoo.linkpc.net/2098096093097094/Incredible-The-Inevitable-Trilogy-3-by-Jason-Letts.pdf
    • http://loaminoo.linkpc.net/3091097092092096/The-Vendetta-Clause-The-Cumerian-Unraveling-2-by-Jason-Letts.pdf
    • http://loaminoo.linkpc.net/4099096097098090/Culture-Clash-Dread-Meets-Punk-Rockers-by-Don-Letts.pdf
    • http://loaminoo.linkpc.net/3098097093/The-Perfect-Horse-the-Daring-U-S-Mission-to-Rescue-the-Priceless-Stallions-Kidnapped-by-the-Nazis-by-Elizabeth-Letts.pdf
    • http://loaminoo.linkpc.net/3093090090095090/Don-t-Shoot-It-s-Only-Me-by-Bob-Hope.pdf
    • http://loaminoo.linkpc.net/2099097099099096/Don-t-Shoot-It-s-Only-Me-by-Bob-Hope.pdf
    • http://loaminoo.linkpc.net/4095098099097091/Shoot-Me-by-Lesley-Crewe.pdf
    • http://loaminoo.linkpc.net/3090090099094093/Just-Shoot-Me-Cowboy-Way-1-by-Becky-McGraw.pdf
    • http://loaminoo.linkpc.net/4099090090094094/Why-Shoot-a-Butler-by-Georgette-Heyer.pdf
    • http://loaminoo.linkpc.net/2098090097099092/Nip-The-Buds-Shoot-The-Kids-by-Kenzabur-e.pdf
    • http://loaminoo.linkpc.net/4095099094098/Nip-the-Buds-Shoot-the-Kids-by-Kenzabur-e.pdf
    • http://loaminoo.linkpc.net/3091097092092096/The-Vendetta-Clause-The-Cumeria

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