Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2feaebf5b5dc58…

MALICIOUS

PDF

46.0 KB Created: 2020-10-10 12:52:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: b70643d53b83e1391094016d0f5fbfd4 SHA-1: 94a1cf7cf7a5b4eec8828d94abd1767c16f483e0 SHA-256: af2feaebf5b5dc587268e0f08f8798e2dda8ac0f12f053d9c8ce1f8ec378b83e
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=joshua+luke+smith+christian In PDF document text
    • http://figogi.withoutbordersshop.com/uploads/1/3/1/3/131380942/xowetape-renizij-gujixawefo.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/ef453320-c4d8-4b03-97fb-50e71711e55f/napesunatebogoxip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8a31a77-a08a-4f87-bc1a-cec629e030ba/puranewuzuba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68c5ccfc-d328-4f28-9824-b7fce0f2a0ea/zipije.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4d181de0-021a-42ae-a86e-c47a4485bb9c/govegowiduzumu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2247e9a-bc98-4b48-b3b5-271c31f37bb0/xufefexazesufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa6f71be-4a26-4ff5-9c6e-1e76c56e1397/finitizuvaname.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dfaff21-a75a-4b1a-bbc3-2c89004054c8/55040741520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/3661/8133/files/45844752323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4349/9413/files/elements_of_chemical_reaction_engineering_fogler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/1446/3910/files/alta_vista_school_cheyenne_wy.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_off000076d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76D4 5092 bytes
SHA-256: 4eee74eb67e2a326fea7e65a427eb3bc51c0e98a1d73613a9171ce891be50f14
font_01_sfnt_off000087fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FD 10508 bytes
SHA-256: 04defa2d1d3c223fdb93510d4db4929ee8ac363fb0a6d07666ae74879fc5e1bc