Malicious PDF — malware analysis report

Static analysis result for SHA-256 b023068fbb4aa1fb…

MALICIOUS

PDF

13.7 KB Created: 2019-04-30 05:06:07 +01:00 Authoring application: mPDF 5.7
MD5: 07095374bf1523b6e275233837fdde26 SHA-1: 9c9a11651215516e2d4f421f25d972044f80bfa6 SHA-256: b023068fbb4aa1fba0a9da2be3e9e01eb29c0fbb0fab6564c92ef1ee830ffa0f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier as malicious and contains a large number of embedded links to external PDF files hosted on loaminoo.linkpc.net. This suggests a link farm or SEO poisoning attack, potentially designed to lure users to malicious content or distribute malware. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis of the specific lure.

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/3097096093092094/Oliver-s-Heart-Brac-Pack-6-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/3097098095095099/Feathers-and-Fur-Brac-Pack-Next-Gen-6-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/3097098095096096/His-Little-Vampire-Brac-Pack-Next-Gen-10-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/2099099092098093/Montana-s-Vamp-Brac-Pack-16-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/3097098098091095/His-Imperfect-Mate-Brac-Pack-26-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8091099097091097/Seth-s-Chance-Brac-Pack-27-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/3097096096092092/George-s-Turn-Brac-Pack-8-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/2092099092090098/Maverick-s-Mate-Brac-Pack-1-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/3093092099093097/Riley-s-Downfall-Brac-Pack-29-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8092090090092099/Brac-Pack-Volume-6-Mark-s-Not-Gay-amp-Nutter-Nero-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8092090090092095/Brac-Pack-Volume-5-Loco-s-Love-amp-Lewis-s-Dream-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8091099099094094/Heart-of-Gold-Brac-Village-23-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/3097098098090092/Valentino-s-Cowboy-Brac-Village-10-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8091099097091099/Loving-Styles-Brac-Village-12-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8091099098092098/Fighting-Temptation-Brac-Village-11-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8091099097092090/Silent-Secrets-Brac-Village-2-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8091099098093091/Polar-Opposites-Brac-Village-13-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8091099098092099/Jordan-s-Desires-Brac-Village-9-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/8094098095090090/Taz-Zeus-s-Pack-12-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/3095092094094095/Jasper-Zeus-s-Pack-1-by-Lynn-Hagen.pdf
    • http://loaminoo.linkpc.net/3097098098090092/Valentino-s-

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