Malicious PDF — malware analysis report

Static analysis result for SHA-256 28df208654e4a76d…

MALICIOUS

PDF

45.6 KB Created: 2020-08-07 19:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4cfc5bd9071207320886474688e0291f SHA-1: 94f7306201abd73c621fe18e931c45177aea41b0 SHA-256: 28df208654e4a76d8a28e9458f1b3a1c750a7767e4fc19f006d7bc5c9f73552b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a deceptive title and body text related to 'Cholesterol lowering foods list pdf' to entice users. It embeds multiple links, with a critical heuristic identifying a link to a known malicious redirector at https://ttraff.com/pify?keyword=cholesterol+lowering+foods+list+pdf. Another critical heuristic indicates a PDF link farm, suggesting the document is part of a larger SEO manipulation scheme to distribute malicious content. No scripts were extracted, but the primary attack vector is the malicious link within the document.

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://ttraff.com/pify?keyword=cholesterol+lowering+foods+list+pdf In PDF document text
    • http://files.crazyartmama.com/uploads/1/3/1/4/131407823/juwugerazosudakevonu.pdfIn PDF document text
    • http://sugewefo.potlatchfundcohorts.org/uploads/1/3/1/4/131482995/317d517c32a4752.pdfIn PDF document text
    • http://files.jspublishing.org/uploads/1/3/0/7/130776590/tateratenaxejagezuda.pdfIn PDF document text
    • http://files.connieandcoopercatering.com/uploads/1/3/2/6/132682989/fanuwafedilobo.pdfIn PDF document text
    • http://files.ukcamperhire.uk/uploads/1/3/0/7/130739883/513520.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8497/0139/files/vovebilodebevorogefukuduf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1202/1657/files/65111182340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/a_breviary_of_seismic_tomography.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/josene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8853/files/gavapoguzinojurodir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9932/4580/files/felun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/wikolisivob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pekazojifedabefotekufof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/62114329075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xawifakupubegezixezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3190/3902/files/52970285131.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

Related samples 8

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_off000074ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74CE 5092 bytes
SHA-256: 90a263784e7c3ad7094f17b3e4bca5cc8e821e0bc3ef21b2466f99107affbe21
font_01_sfnt_off0000862c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x862C 10256 bytes
SHA-256: 585a23fc92b903ff4b6cf8d19dc434829e0c448776790de5dfda0dbf152af5ed

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