Malicious PDF — malware analysis report

Static analysis result for SHA-256 4396bd98e1c1bd34…

MALICIOUS

PDF

21.0 KB Created: 2019-05-02 05:22:23 +01:00 Authoring application: mPDF 5.7
MD5: 8424fce7851c5082c46fe185adafe4f7 SHA-1: 928bcf630f73f0ff7bcc88f5362a9f9999165e52 SHA-256: 4396bd98e1c1bd344f5e5cec9408ff1aedb3b7108fe0e90cd0b5f5fca9d51537
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF file contains a large number of embedded links to external PDF documents, hosted on a dynamic DNS domain. This behavior is indicative of a link farm or SEO poisoning tactic, designed to drive traffic to specific content. While the ML classifier strongly flagged this as malicious, the specific intent beyond link distribution is unclear from the available data.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://unieoooq.linkpc.net/54e34e24e84e64e7/Sore-Throat-Secrets-The-Ultimate-Guide-to-Natural-Remedies-to-Heal-your-Sore-Throat-Today-by-Healthy-Body-Books.pdf
    • http://unieoooq.linkpc.net/54e34e34e04e14e1/Jack-amp-Meggie-The-Sore-Throat-by-Jennie-May.pdf
    • http://unieoooq.linkpc.net/54e34e24e84e14e1/The-Sore-Throat-and-Other-Poems-by-Aaron-Kunin.pdf
    • http://unieoooq.linkpc.net/54e34e24e84e64e0/Sore-Body-by-Cory-Garcia.pdf
    • http://unieoooq.linkpc.net/84e64e24e14e94e4/Eczema-The-Ultimate-Eczema-Treatment-Guide-How-To-Remove-Eczema-Permanently-And-Cure-Eczema-Forever-Using-100-Guaranteed-Natural-Remedies-by-Donna-Flinn.pdf
    • http://unieoooq.linkpc.net/54e34e24e84e74e6/Crocodile-s-Sore-Tooth-Crocodile-s-Sore-Tooth-by-Fundisile-Gwazube.pdf
    • http://unieoooq.linkpc.net/14e14e24e24e04e24e5/The-Complete-Idiot-s-Guide-to-Natural-Remedies-by-Chrystle-Fiedler.pdf
    • http://unieoooq.linkpc.net/44e14e84e44e14e7/The-Throat-by-Peter-Straub.pdf
    • http://unieoooq.linkpc.net/14e04e44e44e24e44e4/The-Throat-and-It-s-Functions-by-Louis-Elsberg.pdf
    • http://unieoooq.linkpc.net/84e84e04e24e8/Cut-Throat-Cat-Dupree-2-by-Sharon-Sala.pdf
    • http://unieoooq.linkpc.net/24e34e14e94e14e2/A-Bone-in-the-Throat-by-Steven-Ramirez.pdf
    • http://unieoooq.linkpc.net/74e74e24e64e24e3/The-Pilates-Body-The-Ultimate-At-Home-Guide-to-Strengthening-Lengthening-and-Toning-Your-Body--Without-Machines-by-Brooke-Siler.pdf
    • http://unieoooq.linkpc.net/44e14e04e64e74e2/Grabbing-the-Muse-by-the-Throat-by-Wendy-Barrett.pdf
    • http://unieoooq.linkpc.net/14e04e34e34e04e54e9/Palm-Frond-with-Its-Throat-Cut-by-Vickie-V-rtiz.pdf
    • http://unieoooq.linkpc.net/74e64e04e54e74e9/Gymnastics-and-Yoga-for-a-perfect-body-and-a-strong-moral-30-exercises-to-a-healthy-mind-in-a-healthy-body-by-Roger-Billard.pdf
    • http://unieoooq.linkpc.net/14e14e14e54e94e14e9/Deep-Throat---Traumhafte-Piraten-01-by-Hana-Umezawa.pdf
    • http://unieoooq.linkpc.net/14e14e14e54e94e24e1/Deep-Throat---Traumhafte-Piraten-02-by-Hana-Umezawa.pdf
    • http://unieoooq.linkpc.net/34e04e84e84e84e3/Clean-Eats-Over-200-Delicious-Recipes-to-Reset-Your-Body-s-Natural-Balance-and-Discover-What-It-Means-to-Be-Truly-Healthy-by-Alejandro-Junger.pdf
    • http://unieoooq.linkpc.net/54e34e24e84e14e6/Eye-Sore-by-Melanie-Jackson.pdf
    • http://unieoooq.linkpc.net/74e64e64e94e64e0/Cough-Cures-The-Complete-Guide-to-the-Best-Natural-Remedies-and-Over-the-Counter-Drugs-for-Acute-and-Chronic-Coughs-by-Gustavo-Ferrer.pdf
    • http://unieoooq.linkpc.net

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