Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2e65a5e5245e14…

MALICIOUS

PDF

40.5 KB Created: 2020-10-06 19:21:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 17aeb15f7606aee5355645c8d3177981 SHA-1: 803177b498bb3aae4a00888bedc9dda7cf9abb20 SHA-256: af2e65a5e5245e144df389684b2a871a50ccd92ed43d85a804716fa0bc733d12
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://ggtraff.ru/strik?keyword=behringer+km1700+review In PDF document text
    • https://site-1037152.mozfiles.com/files/1037152/68891583212.pdfIn PDF document text
    • https://site-1036729.mozfiles.com/files/1036729/36087572898.pdfIn PDF document text
    • https://site-1039273.mozfiles.com/files/1039273/84936016947.pdfIn PDF document text
    • https://site-1036713.mozfiles.com/files/1036713/kixutofemigevolilowi.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/fcac82dc-d6b9-4200-994a-cc835f0da8c6/pakodatego.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6378b4bf-c4d9-41b1-a2fa-1aa3cefebd59/83370430742.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b080d9a-ad6e-4167-986d-9fd1aaefb1b6/62477112810.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/051e9779-d994-4856-8f29-2d4b1793815e/31233410779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/2177/5260/files/97922033503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/7720/0793/files/the_night_daddy_went_to_jail.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0371/0104/files/northern_lights_candles_esque.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7693/4042/files/jafoxatetilowuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8531/9332/files/paintball_sentry_gun.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_off00005e16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E16 5220 bytes
SHA-256: f25d187707fbfc9ce941bb7e4e70d1bab7f4cc981ce8bd1ff5be398e3126e37c
font_01_sfnt_off00006fd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD5 10704 bytes
SHA-256: 388e13d026186b3047f5dbec426f7a690e9a54177764a017369218dff48893ff