Malicious PDF — malware analysis report

Static analysis result for SHA-256 c86403f8575f1fcb…

MALICIOUS

PDF

14.8 KB Created: 2019-04-30 05:15:00 +01:00 Authoring application: mPDF 5.7
MD5: 00118c034a3887751db2f7c884f01128 SHA-1: 037560132ef2f7f6b36709d47ecba6617cd7237b SHA-256: c86403f8575f1fcb6bdafc1b3862123f409f06642f3fa31cd8c5b6657a057274
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links to external PDFs hosted on the domain 'loaminoo.linkpc.net'. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic to potentially malicious content. The ML classifier also flagged this PDF with high confidence.

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/2092097099090094/Confidential-Confessions-Volume-1-by-Reiko-Momochi.pdf
    • http://loaminoo.linkpc.net/5096094097095090/Confidential-Confessions-Volume-4-by-Reiko-Momochi.pdf
    • http://loaminoo.linkpc.net/4097095094093098/Doctor-Patient-Confidentiality-Volume-One-Confidential-1-by-Eme-Strife.pdf
    • http://loaminoo.linkpc.net/3093095098093/Why-She-Left-Us-by-Rahna-Reiko-Rizzuto.pdf
    • http://loaminoo.linkpc.net/4098091097099090/Confessions-of-a-Hollywood-Star-Confessions-of-a-Teenage-Drama-Queen-3-by-Dyan-Sheldon.pdf
    • http://loaminoo.linkpc.net/1090090090099095099/Soul-Cage-Reiko-Himekawa-2-by-Tetsuya-Honda.pdf
    • http://loaminoo.linkpc.net/9093095093099096/Hiroshige-s-Tokaido-in-Prints-and-Poetry-by-Reiko-Chiba.pdf
    • http://loaminoo.linkpc.net/4094091096090090/Confessions-of-a-Murder-Suspect-Confessions-1-by-James-Patterson.pdf
    • http://loaminoo.linkpc.net/4090095096093095/Confessions-of-an-Angry-Girl-Confessions-1-by-Louise-Rozett.pdf
    • http://loaminoo.linkpc.net/1092099095094096/Confessions-of-a-Murder-Suspect-Confessions-1-by-James-Patterson.pdf
    • http://loaminoo.linkpc.net/3090091096092097/Over-the-Mountain-of-the-Moon-A-Tale-of-a-Samurai-Consort-by-Reiko-Morgan.pdf
    • http://loaminoo.linkpc.net/4098090093092092/Over-the-Mountain-of-the-Moon-A-Tale-of-a-Samurai-Consort-by-Reiko-Morgan.pdf
    • http://loaminoo.linkpc.net/3090090099093096/Over-the-Mountain-of-the-Moon-A-Tale-of-a-Samurai-Consort-by-Reiko-Morgan.pdf
    • http://loaminoo.linkpc.net/1099094098090091/Confessions-of-a-Virgin-Sex-Columnist-Confessions-1-by-Kay-Marie.pdf
    • http://loaminoo.linkpc.net/6099092094097092/Confessions-of-a-Klutz-Confessions-1-by-Abigail-Davies.pdf
    • http://loaminoo.linkpc.net/3090099097096092/MALEDICTION-Rise-of-the-Crimson-Confessions-Crimson-Confessions-1-by-J-D-Lexx.pdf
    • http://loaminoo.linkpc.net/5096094096093091/Oakdale-Confidential-by-Anonymous.pdf
    • http://loaminoo.linkpc.net/5096094095095090/Mocha-Confidential-by-Billy-McCoy.pdf
    • http://loaminoo.linkpc.net/5096094097094095/Confidential-Expecting-by-Jackie-Braun.pdf
    • http://loaminoo.linkpc.net/1091098093091099096/Samurai-Confidential-by-Ryuto-Kanzaki.pdf
    • http://loaminoo.linkpc.net/3090091096092097/Over-the-Mountain-of-t

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