Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3e83a3bb8d704a4…

MALICIOUS

PDF

41.8 KB Created: 2020-10-14 04:57:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: fce7e4e80ca0b0db3942112caccfef7a SHA-1: 69b5ed3609552078db69c6056ad10f7f407b0b28 SHA-256: d3e83a3bb8d704a44f7b0a427c6b6944919ea3a437cdccd5dc9e71a25399600c
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=area+and+perimeter+of+polygons+worksheets+pdf In PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/4041939.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/tifuxasorelav-sunagutigu-gikisifexixabot.pdfIn PDF document text
    • https://mogilifus.weebly.com/uploads/1/3/0/7/130739831/8347111.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/3355978.pdfIn PDF document text
    • https://genigudepa.weebly.com/uploads/1/3/1/0/131070712/4e0d994f.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/1/0499/8660/1120/files/gsu_spring_break_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/9773/9430/files/jesus_playing_basketball.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4079/5555/files/vibimutivona.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/3755/8437/files/67980226283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1734/6965/files/stephen_colbert_band_tonight.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4695/9261/files/68703237001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9612/8153/files/jinikonevume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2230/3911/files/36449364189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8881/9864/files/does_quicktables_get_mailed_to_your_house.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8206/3777/files/dinozumenawilunolivus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0476/8360/0550/files/moss_verbena_plant.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_off00006445.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6445 5700 bytes
SHA-256: 93888ab971177257f1a285cd4c9c90814e760fe39d2ad6f5b699ada39f5ce7fb
font_01_sfnt_off0000779c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x779C 10032 bytes
SHA-256: 18bab0468922246227ca207ce972b95f821acf20dec4abefc5b33212112d21a4

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