Malicious PDF — malware analysis report

Static analysis result for SHA-256 3424afb398d46b67…

MALICIOUS

PDF

54.4 KB Created: 2020-08-18 18:47:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ea7ee2a879d43aa2118c4b7868e60b0f SHA-1: f36a5b3abf1cc5430dfa21027a69712b7ba66237 SHA-256: 3424afb398d46b67da2fdb2ffbb7bab539e968282658239f0966a6e74992e79a
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to an SEO redirector infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=functions+of+essential+fatty+acids+pdf, which is flagged as malicious. The document body and embedded link structures suggest a phishing or scam attempt, masquerading as a free download to entice users to click malicious links.

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=functions+of+essential+fatty+acids+pdf In PDF document text
    • http://files.acyouthsoccer.net/uploads/1/3/1/3/131379296/sajanoxozowimuto.pdfIn PDF document text
    • http://files.vivifymultimedia.com/uploads/1/3/0/7/130775033/4bd9120.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/1/0437/0402/5242/files/vocabulary_games_and_activities_peter_watcyn_jones.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/4354793395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7663/3247/files/adhesive_vinyl_sheets_joanns.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6678/5949/files/mowagakesipej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1979/6643/files/misuman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/vujaxalesolavukepolebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/vapulerefavowasezep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4147/0117/files/delivery_manager_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6498/3703/files/90319054577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/58451530868.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 3

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_off00009839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9839 5112 bytes
SHA-256: eaa66a7c2f5559331f34322c4ad15e7a3f3a9abfe4472e3ee43a04e84b201faf
font_01_sfnt_off0000a9bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA9BC 10336 bytes
SHA-256: 79b0ca6322b373fa0d7fdded75ac47e60b9a957ff121672f56d083715a513806

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