Malicious PDF — malware analysis report

Static analysis result for SHA-256 215926864ec13270…

MALICIOUS

PDF

61.0 KB Created: 2020-10-13 21:10:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: e6aa411063c1523ee8b40fd94439396e SHA-1: fd74c23513e675d192e189e593f75d7ce2c1038a SHA-256: 215926864ec13270d8f5abf18bbc11c79c6f629dae22c2882e662a2eb313904d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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 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://cctraff.ru/strik?keyword=un+mundo+feliz+pdf+aldous+huxley In PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/wovexofek.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/3250b5961ed1.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/0cbd7f35736ab.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/7285/2646/files/mr_lindens_library_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7005/5090/files/72464241168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/7503/1206/files/pibebawuvexidipurot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/0723/3181/files/detewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9945/4628/files/88538826643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9266/3702/files/92912957355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4313/4362/files/insinkerator_56_repair_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/334c8736-0bf3-40a0-882a-c248f4f9b19a/59843286514.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fce6419-ffc1-48c5-966a-34b04ef4777c/puxifopixib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b8edd4b-207b-48d6-b7ad-7fcf46e0eac7/gedewiwesatuvukit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f9db3a7-5d67-4e30-b887-6ad639d10056/jasazakepovabo.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB186 5396 bytes
SHA-256: b0991a2b41df1da2078f1bf67e3fecc0de96fc19ffdc8318b24fbe381671c2ab
font_01_sfnt_off0000c3ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3CE 10332 bytes
SHA-256: 5705b07827e8c99cb08012a9f8c26a1f5f0539eecfad902e89e6c3b1c04770d0

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