Malicious PDF — malware analysis report

Static analysis result for SHA-256 224149eec5fa62bc…

MALICIOUS

PDF

44.7 KB Created: 2020-10-09 01:18:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-23
MD5: 2e44a9fcb6258c833cd7a1112f36bd48 SHA-1: 22b0702184d84dad5ce1f3f2f87d4b3e69712920 SHA-256: 224149eec5fa62bc95177fc81d8eb45c7444b511c17ff1b435ce3be7b21ba8a7
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=organic+chemistry+brown+8th+edition+pdf In PDF document text
    • http://revin.rasrimarketing.com/uploads/1/3/1/3/131379874/54a022cdf4.pdfIn PDF document text
    • http://files.gillettehandyman.com/uploads/1/3/1/3/131398428/koduza-zesenedafate-xawunalisiwado-bofifumisow.pdfIn PDF document text
    • http://files.odcc.info/uploads/1/3/2/6/132682879/9310098.pdfIn PDF document text
    • http://lenaxetoj.sdohschoir.com/uploads/1/3/0/8/130874175/tivafitufemesox.pdfIn PDF document text
    • http://files.paulallenhill.com/uploads/1/3/0/7/130775701/c0d81cf4ff85.pdfIn PDF document text
    • http://turuxob.mgss.com/uploads/1/3/0/7/130739344/dabagadogifovodip.pdfIn PDF document text
    • http://files.moanalipopo.com/uploads/1/3/2/6/132696323/4a12ec30.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off000062ff.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off000062ff.bin)
    • https://cdn.shopify.com/s/files/1/0432/3924/3944/files/area_under_curve_formula_roc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7192/2591/files/funny_no_coffee_memes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/7557/0326/files/navy_federal_credit_union_wire_transfer_cutoff_time.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6879/0686/files/zofepazuwifefawapasiduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9675/0742/files/ikea_low_cost_structures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0067/6003/files/microlife_blood_pressure_monitor_manual_bp3mc1-pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0488/1062/3141/files/45315964748.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_off000062ff.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62FF 6092 bytes
SHA-256: 516780130da6c170434b7cc0870a820e231ecdd4643f0cc5e32b6e5ffe04071e
font_01_sfnt_off0000779b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x779B 14784 bytes
SHA-256: be15f31db721bd90480a5eaf5c5185c3de11d3e5683973abca1c23e3f8a938c1