Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d3744808e61088…

MALICIOUS

PDF

42.9 KB Created: 2020-10-11 08:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-28
MD5: c25fbc24dd4f168b03df19d3392694ec SHA-1: 82a8ed3e51ea4f05a0d532ddb6ea053d991291a5 SHA-256: c7d3744808e61088cdabd591f153dac59f46304972b304acc6b596861812e2c0
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://gettraff.ru/strik?keyword=civilization+5+campaign+edition+mac+free+download In PDF document text
    • http://files.jenniferhelenadams.com/uploads/1/3/1/6/131606069/1991b25899d.pdfIn PDF document text
    • http://dewola.eyecandybyliz.com/uploads/1/3/0/9/130969153/nukezojatozeb_gutasudonim_bedasoxu_pevibefa.pdfIn PDF document text
    • http://zujima.kariccohairdesign.com/uploads/1/3/1/4/131483065/3fc71fe17.pdfIn PDF document text
    • http://files.usautoandfleet.com/uploads/1/3/1/4/131437149/zoligono.pdfIn PDF document text
    • http://pivido.kinggdouble.com/uploads/1/3/0/8/130814085/6898662.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000667a.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000667a.bin)
    • https://uploads.strikinglycdn.com/files/a1d2a1f9-a84a-49ea-83f8-ceddc54b238e/34527362375.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e491698-c160-4bd8-b3ba-637dc8c4930e/54674686922.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/caf0f606-9b43-4c00-b129-1eb1b66ecdec/81940609150.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/067aef50-f8fa-4053-bfb9-72d81de9b4ed/45726494890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/5589/2630/files/32039588359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/2203/2285/files/satobawosexojopuwot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/6290/6017/files/fowulapuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7446/1594/files/evergreen_school_district_job_openings_vancouver_wa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8320/2711/files/significado_de_los_emojis_en_espaol.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 extracted file (font_00_sfnt_off0000667a.bin)

Related samples 2

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_off0000667a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x667A 5528 bytes
SHA-256: 64a5dd42ffe1f5bee3b8486ab891e88a10b142b6a6201eacd9b73cda1cff17f2
font_01_sfnt_off00007954.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7954 11016 bytes
SHA-256: ff6a6edeb272e8d97e0d265b8bff93a98c2517ee29cd6bbdcf7a09b9bb7def42

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