Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc408354302054f…

MALICIOUS

PDF

14.7 KB Created: 2019-04-30 04:20:04 +01:00 Authoring application: mPDF 5.7
MD5: 99afab6bc1d1b12f7224aa40c8162369 SHA-1: f8a06ca4775c63e77a88cc4c6602bd9f83bb320f SHA-256: 0dc408354302054fecb56768b6bb8e7811c90510a9d635f4b5de734f3c6f71c9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to a dynamic DNS domain, suggesting a link farm or redirection scheme. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the sheer volume of external links and the heuristic firing indicate an attempt to direct users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/5091092095093093/3-1-3-gatsu-no-Lion-1-March-comes-in-like-a-lion-1-by-Chica-Umino.pdf
    • http://loaminoo.linkpc.net/6097096098094090/Red-Lion-Blue-Lion-WARS-The-Battle-of-Phobos---Gongen-Part-2-of-3-by-Sabrina-Fried.pdf
    • http://loaminoo.linkpc.net/2095093095095098/A-Lion-Called-Christian-The-True-Story-of-the-Remarkable-Bond-Between-Two-Friends-and-a-Lion-by-Anthony-Bourke.pdf
    • http://loaminoo.linkpc.net/5098096096097096/Honey-and-Clover-Vol-8-by-Chica-Umino.pdf
    • http://loaminoo.linkpc.net/5098096096097091/Honey-and-Clover-Vol-6-by-Chica-Umino.pdf
    • http://loaminoo.linkpc.net/5098096096097099/Honey-and-Clover-Vol-9-by-Chica-Umino.pdf
    • http://loaminoo.linkpc.net/5098096096097094/Honey-and-Clover-Vol-10-by-Chica-Umino.pdf
    • http://loaminoo.linkpc.net/1090095097098095/The-Clay-Lion-The-Clay-Lion-1-by-Amalie-Jahn.pdf
    • http://loaminoo.linkpc.net/1094098095099092/Lion-s-Blood-Lion-s-Blood-1-by-Steven-Barnes.pdf
    • http://loaminoo.linkpc.net/4097090098090091/Jud-S-by-Lion-Feuchtwanger.pdf
    • http://loaminoo.linkpc.net/4090090098092093/The-Lion-s-Paw-by-Robb-White.pdf
    • http://loaminoo.linkpc.net/2098098099095091/Success-by-Lion-Feuchtwanger.pdf
    • http://loaminoo.linkpc.net/1094097096096/Lion-Hound-by-Jim-Kjelgaard.pdf
    • http://loaminoo.linkpc.net/4094091096093094/Swollen-by-Melissa-Lion.pdf
    • http://loaminoo.linkpc.net/9094090096095097/Vulpile-in-vie-II-by-Lion-Feuchtwanger.pdf
    • http://loaminoo.linkpc.net/9094090095098090/Vulpile-in-vie-I-by-Lion-Feuchtwanger.pdf
    • http://loaminoo.linkpc.net/5098096097097098/Y-el-ltimo-hombre-chica-con-chica-Y-The-Last-Man-7-by-Brian-K-Vaughan.pdf
    • http://loaminoo.linkpc.net/2093095097099096/The-Lion-the-Witch-and-the-Wardrobe-by-C-S-Lewis.pdf
    • http://loaminoo.linkpc.net/1092097097091/Bride-of-the-Lion-by-Elizabeth-Stuart.pdf
    • http://loaminoo.linkpc.net/4098091091092098/The-Lion-s-Haircut-by-Jennifer-Giddings.pdf

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