Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2255a37158f239…

MALICIOUS

PDF

44.0 KB Created: 2020-10-29 09:01:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: f102ea447c31231673c5d6bcca0d33be SHA-1: fc65c3688db7e8dc309013a9e834c6bb5e680299 SHA-256: af2255a37158f23906d3500bbe3dc5b677f05a257e5b597e9b84b8418ff79a78
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/123?keyword=rug+doctor+deep+carpet+cleaner+instructions In PDF document text
    • https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/fukavatajosaxa.pdfIn PDF document text
    • https://karezolakep.weebly.com/uploads/1/3/1/3/131398125/713190361fa484a.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/lafaletalelugivefa.pdfIn PDF document text
    • https://vopevejefed.weebly.com/uploads/1/3/1/6/131606133/dovones_davazulaw_garufivotada.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/6347600.pdfIn PDF document text
    • https://sisodiwitamusoz.weebly.com/uploads/1/3/2/6/132681746/nomuxafag-gufogerelitipuv-rozixitifudagaf.pdfIn PDF document text
    • https://dirigesibujov.weebly.com/uploads/1/3/0/9/130969991/votedojodages.pdfIn PDF document text
    • https://palozemoxapido.weebly.com/uploads/1/3/4/3/134366311/lilurewazematijimofi.pdfIn PDF document text
    • https://fobedixosofano.weebly.com/uploads/1/3/4/3/134377241/kijevixujodagufo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/xuzuvalekudofinozobovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0040/3880/files/nifidivapadis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8199/7717/files/livro_gestalt_terapia_explicada.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f56675db-989f-4fb7-bd89-8a3cd616d4b1/lerogowifejos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4082/3706/files/retraction_cord_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/7829/6746/files/the_great_gatsby_chapter_9_quiz_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dujepav/40751625104.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba06a657-ba2c-450e-a9d7-40240c4e4b53/nokapexudajofid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/19bf5267-64d0-40d1-93c7-2ad9dce1d42c/veganunapamefakisore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b81ce9cf-b1f6-43d4-a110-b273b2cf8ff1/38857876976.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/22f3224d-957a-4b65-939e-73292fa12ca9/mitsubishi_colt_cz3_service_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kulinisokakewi/enteric_nervous_system_review.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2394/8719/files/semupukefararimifas.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_off00006b67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B67 5248 bytes
SHA-256: 72ae81b1e65724b181eb68217d44318f3dc95e4a54779591cc5931cbefba2d60
font_01_sfnt_off00007d59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D59 11348 bytes
SHA-256: ce8cde672d32f90e5a71cfee0def7da74bf91f4262039f774f6ce10c2b330331