Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcafc824a15a2b9e…

MALICIOUS

PDF

62.5 KB Created: 2020-08-18 19:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e79460431db00d816a6983967fc9b91 SHA-1: 1c4f7515550f05d0a695181b2a7f92ec3f9d6386 SHA-256: dcafc824a15a2b9ea6310b39bc3c4dd3b497ef5a62629911ba5e0bd3809a93e4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL `https://ttraff.com/pify?keyword=catahoula+cur+dog+information` is identified as a malicious redirector. The document body contains numerous links, many pointing to Shopify domains, but the primary malicious intent appears to be the redirection through the ttraff.com URL.

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=catahoula+cur+dog+information In PDF document text
    • http://files.virginiateacompany.com/uploads/1/3/2/7/132741339/2aea96.pdfIn PDF document text
    • http://files.aniasorganics.com/uploads/1/3/0/7/130775588/suwekekazove-riroxiv-notekaji.pdfIn PDF document text
    • http://files.missycampmusic.com/uploads/1/3/1/0/131070851/wibozow-tozatuli-dibisujovus.pdfIn PDF document text
    • http://fabogoze.clearlightastrology.com/uploads/1/3/0/8/130874330/39ea36bd2fd8b7.pdfIn PDF document text
    • http://files.gvramigos.com/uploads/1/3/1/4/131408772/xadipimusomi-rimejiwimot-mubewe.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/1/0439/9765/9294/files/osteoporosis_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/48618015626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/cabala_calculo_del_arbol_de_la_vida.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84407481133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2108/6368/files/adverse_reaction_to_metformin_icd_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dojedeteremedadedarovir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/12894884620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4889/3606/files/miguel_de_cervantes_don_quixote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/zotivijipenojod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5549/5833/files/70755860745.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 7

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_off0000b87d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB87D 5164 bytes
SHA-256: 0f88c36d620a69dfbc65904e49b4fc05f49fd0dc8cb9de56c697554dcd4300e1
font_01_sfnt_off0000c9de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9DE 10420 bytes
SHA-256: dea9143a73e4aa9445c4fd8f38799e4ea629e5af994c9d562456722c185d155b

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