Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6028a69b1df8f6f…

MALICIOUS

PDF

17.8 KB Created: 2019-05-01 19:03:37 +01:00 Authoring application: mPDF 5.7
MD5: 233a7d9f03c51e405bbafd94e756f5a1 SHA-1: 0989da69d08fa9e9474a65f8b6ef03a901d8760a SHA-256: a6028a69b1df8f6ff367ff83fe141aa5af69671c00bc6de2cb1d0ca4635bbf6b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded external links, characteristic of a link farm or SEO poisoning attack. The primary heuristic identified a 'PDF_SEO_LINK_FARM' with 23 external links, predominantly hosted on 'loaminoo.linkpc.net'. While the document body was unreadable, the presence of numerous links suggests an attempt to lure users to potentially malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/3097092093095099/Rats-Alley-by-auburn.pdf
    • http://loaminoo.linkpc.net/6098093090096092/About-Indian-Birds-Including-Birds-of-Nepal-Sri-Lanka-Bhutan-Pakistan-amp-Bangladesh-by-S-lim-Ali.pdf
    • http://loaminoo.linkpc.net/6091092097099094/Coastal-Birds-A-Guide-To-Birds-Of-Maine-s-Beautiful-Coastline-by-DeLorme-Mapping-Company.pdf
    • http://loaminoo.linkpc.net/5094090090096097/Fly-High-With-Birds-The-Best-Book-Guide-On-Bird-Watching-Including-All-The-Things-You-Need-To-Know-About-Birding-Including-Bird-Watching-Scopes-The-Different-Birds-Bird-Feeders-and-Backyard-Birding-Why-Watch-Birds-And-Where-To-Find-Them-For-A-Rewardin-by-Mains.pdf
    • http://loaminoo.linkpc.net/5091098095099099/Auburn-Ride-The-Delarosa-Series-Book-1-by-David-Stever.pdf
    • http://loaminoo.linkpc.net/8093096094093091/Dancing-and-Dancers-of-Today-The-Modern-Revival-of-Dancing-as-an-Art-by-Caroline-Caffin.pdf
    • http://loaminoo.linkpc.net/8093096094093094/Dancing-and-Dancers-of-Today-The-Modern-Revival-of-Dancing-as-an-Art-by-Caroline-Caffin.pdf
    • http://loaminoo.linkpc.net/9093097092090/Wind-in-the-Grasses-Dancing-Dancing-the-Dream-1-by-Terrie-McClay.pdf
    • http://loaminoo.linkpc.net/4095095091099090/No-Dancing-No-Acts-of-Dancing-by-Phyllis-Janik.pdf
    • http://loaminoo.linkpc.net/3092096096094090/Dancing-with-Demons-Dancing-2-by-Andrea-Heltsley.pdf
    • http://loaminoo.linkpc.net/3090090090097094/Little-Birds-by-Ana-s-Nin.pdf
    • http://loaminoo.linkpc.net/9092098091092/Birds-by-Kevin-Henkes.pdf
    • http://loaminoo.linkpc.net/5095092095097/Ten-Birds-by-Cyb-le-Young.pdf
    • http://loaminoo.linkpc.net/1090096099095096090/Birds-Eat-and-Eat-and-Eat-by-Roma-Gans.pdf
    • http://loaminoo.linkpc.net/9096097099/The-Someday-Birds-by-Sally-J-Pla.pdf
    • http://loaminoo.linkpc.net/1093097099093097/The-Birds-by-Daphne-du-Maurier.pdf
    • http://loaminoo.linkpc.net/1097090096094099/The-Birds-by-Daphne-du-Maurier.pdf
    • http://loaminoo.linkpc.net/7095093095/Birds-of-Wonder-by-Cynthia-Robinson.pdf
    • http://loaminoo.linkpc.net/3090098090090095/Winter-Birds-by-Jim-Grimsley.pdf
    • http://loaminoo.linkpc.net/4090090095090090/The-King-Of-The-Birds-by-Helen-Ward.pdf
    • http://loaminoo.linkpc.net/8093096094093094/Dancing-and-Dancers-of-Today-The-Modern-Revival-of-Dancing-as-a

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