Malicious PDF — malware analysis report

Static analysis result for SHA-256 60d4328bfd91c505…

MALICIOUS

PDF

42.0 KB Created: 2020-10-08 23:43:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: eec428f9607bbf7dcde7a34cdfc04843 SHA-1: 96b7f5d450ff11b74040b83e155385560a2e004a SHA-256: 60d4328bfd91c5059c00bde7bac627ad0bd72ca156367ef1436ebb7c6e1f9845
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://gettraff.ru/strik?keyword=framo+anti+heeling+system+manual In PDF document text
    • http://files.breathmark.org/uploads/1/3/1/3/131379590/1916023.pdfIn PDF document text
    • http://laxivimeb.nickosharizanos.com/uploads/1/3/0/7/130775209/7bedc64609.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e72df24-6054-4a31-8c33-96c7044cb4cd/90607350529.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/17f68995-d42b-4700-b53b-ed4aa2067a8c/zotuxesedajelukemam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b4cc629-63cc-4309-84c8-028bcc60b76e/45075238875.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8e20224-6b57-46e9-99f0-6c64bc9b3b61/4016362039.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98892bb4-c9e4-4a11-87a5-ec9eecfad2ba/tawozawunewilukojav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa332328-ff8b-4e79-b2f2-fcf35180f713/latigupalorupenoru.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f4a6936-a44d-424f-97ca-54c3e4232a04/47385151169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/6908/3299/files/kuduzef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1516/3032/files/bomagosirilapodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4764/8406/files/mupobunezil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/0813/0981/files/minecraft_fps_boost_1.8.9.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F3 5156 bytes
SHA-256: 90b316ffead41c249f5067d052cb0345eaa79f9108c7d5e4ccba80ba5b886cc3
font_01_sfnt_off0000795c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x795C 9844 bytes
SHA-256: 7b97ac28dace62826a6282ac7542432543f463188a88c6971aa71a896a8e0bbf

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