Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8713b05c530b42…

MALICIOUS

PDF

83.1 KB Created: 2020-10-07 17:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-06
MD5: 1d785a5dee8ac690d8b69c9116f98fe2 SHA-1: 3b96a0c16b8fb6a83b8d04ea49d989ccc977dca2 SHA-256: aa8713b05c530b42bdd15b9b212931717af08f4ad857fff7d0332321c217814b
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=treantmonk+wizard+guide+5e In PDF document text
    • https://site-1038725.mozfiles.com/files/1038725/xidona.pdfIn PDF document text
    • https://site-1043262.mozfiles.com/files/1043262/fakuwifiba.pdfIn PDF document text
    • https://site-1039328.mozfiles.com/files/1039328/36342638650.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/1/0486/0733/0464/files/67836641886.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5398/1589/files/godojokabobeju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1570/8573/files/80432451283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8940/3810/files/29928717520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9361/2949/files/alphabet_position_reverse_in_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6221/3273/files/kebemomekelazo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/890d4ea7-ec86-4772-a8e8-226075a0a658/66541079463.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/04cd7171-3ea9-40c8-9f47-c97061e39c1f/nijowixemelojapobuxadijuz.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_off0001096a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1096A 5212 bytes
SHA-256: 6db3c81dd3e96bb848cb20ae8de19d58553ae357119afc5c43922141a73edfc5
font_01_sfnt_off00011b2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B2F 10668 bytes
SHA-256: 052a202eb73b51a23f263bf64674dd07070795380bdb3e6c0f61d34478cea754