Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a89fc3c6882c016…

MALICIOUS

PDF

28.6 KB Created: 2020-05-19 11:05:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2da74e5d6b4f0b3fc382c35f1d316f2d SHA-1: d8bf15fe214663674971fda228a1dc21e79bd498 SHA-256: 3a89fc3c6882c0167cfd6ae889c8b22399663a7850385c3ddea8d4d68b1e70bd
112 Risk Score

Malware Insights

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

The PDF file is identified as a malicious phishing lure due to its structure, which contains an image designed to trick users into clicking a link. The document body, though heavily obfuscated, contains multiple URLs that likely lead to further malicious content or downloads. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a broad phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

Heuristics 4

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 28 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://nrhcd.org/uploads/1/3/0/7/130739956/130739956.html#libro+de+50+sombras+mas+oscuras+de+grey
    • http://jonescleaning.org/uploads/1/3/0/8/130873916/6575335.pdf
    • http://maspc.org/uploads/1/3/0/6/130604048/rivubijas.pdf
    • http://bradleyhartmanbakken.org/uploads/1/3/1/4/131437268/a5a5ac327c30f.pdf
    • http://perceptivepsych.com/uploads/1/3/0/4/130488163/renewevil_timuzevuv_satewirar_goponivop.pdf
    • http://ouressentialstory.com/uploads/1/3/0/7/130775643/bumajejez_nofoxiverokuno.pdf
    • http://carbonauto.net/uploads/1/3/0/7/130738615/360b900965ad7ac.pdf
    • http://shopenb.online/uploads/1/3/0/7/130738727/tarekukago-zenak-mukawef-samirudo.pdf
    • http://threebranch.com/uploads/1/3/1/6/131606395/pikeku.pdf
    • http://eventseatsolutions.com/uploads/1/3/0/7/130775441/2392412.pdf
    • http://freshtatsic.com/uploads/1/3/0/9/130969421/bonutelit.pdf
    • http://iglootw.com/uploads/1/3/0/5/130588757/48953633.pdf
    • http://moonloogo.com/uploads/1/3/0/8/130874086/3d6a61a9f6f.pdf
    • http://terrehautekirby.com/uploads/1/3/1/3/131378993/3e0fbfb410.pdf
    • http://gobioroots.com/uploads/1/3/0/9/130969931/kovilufum.pdf
    • http://adbouwcom.com/uploads/1/3/1/8/131857723/nafasofanakuso.pdf
    • http://robotocelot.com/uploads/1/3/1/4/131437106/jisafumanukesezabete.pdf

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