Malicious PDF — malware analysis report

Static analysis result for SHA-256 806296e1437614d1…

MALICIOUS

PDF

57.4 KB Created: 2020-07-31 00:47:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd8801dbba22399bf1ec763f8ca38c3d SHA-1: 42f66531006c3a87810484e30e665b9b11713f77 SHA-256: 806296e1437614d15eff949953cfe554bc710fbd5aed36f82a5d2fb38be4ba34
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it is a malicious redirector, specifically linking to 'ttraff.ru' which is flagged as malicious. It also hosts a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The ML classifier strongly supports the malicious verdict. No scripts were extracted, but the embedded URLs and redirector behavior are strong indicators of a phishing or malware distribution attempt.

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.ru/pify?keyword=concerning+the+spiritual+in+art+pdf+download In PDF document text
    • http://files.winstonawilson.com/uploads/1/3/0/7/130776267/zolovojidum.pdfIn PDF document text
    • http://files.happinessandenlightenment.org/uploads/1/3/0/7/130775758/9b8e09ae44.pdfIn PDF document text
    • http://files.dawn2duskhomeinspection.com/uploads/1/3/0/8/130874671/nobatoto.pdfIn PDF document text
    • http://files.wyndlestrawdesigns.com/uploads/1/3/1/6/131637273/5829540.pdfIn PDF document text
    • http://files.mrseitner.net/uploads/1/3/1/0/131070934/fe6c9.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/1/0434/6436/0100/files/41710814539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0019/1387/files/dalefefebeno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/41690972757.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7868051279.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/97356821243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2642/3708/files/jarobedizexilano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/99619827009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6988/8920/files/webiwexogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2121/9493/files/551158932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4074/1275/files/97623771780.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/59935761057.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 5

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_off0000a24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA24A 5416 bytes
SHA-256: def6713ca810cc75e8c0a57de2debaccc72e3829204b0319636fe76c46b58fcd
font_01_sfnt_off0000b4be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4BE 10240 bytes
SHA-256: 34e53c3165fd894877329014bea0849784c0d6a4138abc3e318c3a972e83d99e

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