Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c694bb3de8e7d58…

MALICIOUS

PDF

82.1 KB Created: 2020-10-03 23:04:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-06
MD5: c28c8824c7e71949bc5b361394ea3d9e SHA-1: 43d282ccaade284be1da1e25df31b7b86b976ab1 SHA-256: 6c694bb3de8e7d5899229ab82f66c109158a5dbd1ae5b361062c46b9eb16cae4
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://gettraff.ru/strik?keyword=modelos+de+intervencion+en+trabajo+social+comunitario.doc In PDF document text
    • http://files.mrfrausto.com/uploads/1/3/1/3/131380175/79bce9b6b.pdfIn PDF document text
    • http://files.hennamaiden.com/uploads/1/3/1/4/131409090/vorofo.pdfIn PDF document text
    • http://wodig.lapakumroh.com/uploads/1/3/1/3/131383297/tewemewek-wasijog-kupuvimu-vixijazikale.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000fff6.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000fff6.bin)
    • https://uploads.strikinglycdn.com/files/38aef3ac-3ddc-4d63-977c-7153d5369dea/51484047604.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95f903cc-1d7d-40e0-94ad-84c38097393f/52365369283.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a4e59da4-06e8-43b4-83d5-43aef8a66115/99184754282.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7bbccf3-768b-4925-b560-88f65fb9be62/66388448418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3908/7002/files/animal_crossing_new_leaf_cafe_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2828/7127/files/simms_injection_pump_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/4310/6197/files/balancing_redox_reactions_using_half_reaction_method_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3943/8486/files/71410332471.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8215/files/lusezamazemurivapedopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3121/5774/files/cool_wazoo_net_worth.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0740/9310/files/55089745979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/3961/6935/files/45182964556.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 extracted file (font_00_sfnt_off0000fff6.bin)

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF6 5396 bytes
SHA-256: b3fe9d53dfcfb2b1d1d60ef3ea02833dc4ee2d1dcf3075d744e48421483ffb0d
font_01_sfnt_off0001124f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1124F 12128 bytes
SHA-256: ae7bd1adae00539eac1588a7080a7c51306baeab147a6b5e25ad63d800634375

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