Malicious PDF — malware analysis report

Static analysis result for SHA-256 8453249d28e2475e…

MALICIOUS

PDF

15.6 KB Created: 2019-05-02 22:42:54 +01:00 Authoring application: mPDF 5.7
MD5: 33d5eac8219ef0677a7c2f087f4c0b83 SHA-1: 335216e33ed2c645320b324b56a84997f0b1b3db SHA-256: 8453249d28e2475e8bf3e5324fad69c1f82188fcc4eadf38a06f3828795e0985
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files hosted on the domain 'loaminoo.linkpc.net'. This is indicative of a link farm or SEO spam tactic, likely intended to drive traffic or distribute malicious content. The ML classifier also flagged the document as malicious with high confidence. No scripts were extracted, but the embedded links are the primary IOCs.

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/4098093094099098/Warlock-Academy-by-T-C-Orton.pdf
    • http://loaminoo.linkpc.net/1098095092095090/Big-Susan-by-Elizabeth-Orton-Jones.pdf
    • http://loaminoo.linkpc.net/2090090096094092/Crossing-in-Time-Between-Two-Evils-1-by-D-L-Orton.pdf
    • http://loaminoo.linkpc.net/7094090094099094/The-Epidemical-Cholera-by-Reginald-Orton.pdf
    • http://loaminoo.linkpc.net/1098091095090093/Mystery-over-the-Brick-Wall-by-Helen-Fuller-Orton.pdf
    • http://loaminoo.linkpc.net/1091098096090095091/The-Umbrella-Academy-Suite-Apocaliptica-Segundo-Acto-Umbrella-Academy-edici-n-r-stica-2-by-Gerard-Way.pdf
    • http://loaminoo.linkpc.net/1096090093090090/The-Warlock-s-Friend-by-Dean-C-Moore.pdf
    • http://loaminoo.linkpc.net/6091096095094095/Warlock-at-War-Arcane-Inc-4-by-Sean-Stone.pdf
    • http://loaminoo.linkpc.net/1090096091097094096/Bad-Wicked-Twisted-A-Briarwood-Academy-Box-Set-Briarwood-Academy-1-3-by-Ilsa-Madden-Mills.pdf
    • http://loaminoo.linkpc.net/6091096095093096/Dark-Warlock-Arcane-Inc-3-by-Sean-Stone.pdf
    • http://loaminoo.linkpc.net/2094098094095090/Warlock-A-Novel-of-Ancient-Egypt-by-Wilbur-Smith.pdf
    • http://loaminoo.linkpc.net/6091096095091097/Warlock-for-Hire-Arcane-Inc-1-by-Sean-Stone.pdf
    • http://loaminoo.linkpc.net/2099099098095098/A-Warlock-s-Surprise-The-Warlocks-2-by-Erin-M-Leaf.pdf
    • http://loaminoo.linkpc.net/3091097093091090/Dark-Magic-Peter-Warlock-1-by-James-Swain.pdf
    • http://loaminoo.linkpc.net/9091099093098090/Ponce-Academy-Die-Neue-Ponce-Academy-by-Barbara-Laban.pdf
    • http://loaminoo.linkpc.net/1090096096/Gotham-Academy-Vol-1-Welcome-to-Gotham-Academy-by-Becky-Cloonan.pdf
    • http://loaminoo.linkpc.net/8098090090090/Knightley-Academy-Knightley-Academy-1-by-Violet-Haberdasher.pdf
    • http://loaminoo.linkpc.net/1098093094094095/Vampire-Academy-Vampire-Academy-1-by-Richelle-Mead.pdf
    • http://loaminoo.linkpc.net/3099092099092/Vampire-Academy-Vampire-Academy-1-5-by-Richelle-Mead.pdf
    • http://loaminoo.linkpc.net/4092094092090/Vampire-Academy-Box-Set-Vampire-Academy-1-4-by-Richelle-Mead.pdf

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