Malicious PDF — malware analysis report

Static analysis result for SHA-256 5621ae5d7c5a13ed…

MALICIOUS

PDF

38.9 KB Created: 2020-08-08 06:16:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 729462861a08c4b7d7de6a1fc242b6f2 SHA-1: 414f64e9760c79251b4a140b66ca4d0c9aa67f81 SHA-256: 5621ae5d7c5a13ed02decf1e83eebe30c92762548394bd29a108ed95400a11a7
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.ru. The document body also contains this URL, along with numerous other links to Shopify domains, suggesting a link farm or SEO poisoning attempt. The primary malicious URL is likely used to redirect users to a malicious site, potentially for phishing or malware delivery.

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=the+bedford+reader+13th+edition+pdf+free+download In PDF document text
    • http://files.ljcosmetics.com/uploads/1/3/1/6/131607522/namusix-naxekopawasudow-pemebisakolino.pdfIn PDF document text
    • http://files.thewarriorsrosary.com/uploads/1/3/0/7/130739060/jatibuferixiv.pdfIn PDF document text
    • http://files.drgnflybotanicals.com/uploads/1/3/1/4/131411024/7838156.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/1/0433/6815/3239/files/xenarijaxuzadirudiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3668/0098/files/tagope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0089/7440/files/delowofawafezasawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9403/2025/files/sajajaxetesizajasupusara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5654/6467/files/pebipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/bicc_cable_lugs_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7491/files/wastewater_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8298/files/59428762857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1750/6716/files/latin_american_revolution_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1832/0034/files/22249021113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3672/0808/files/50909230131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pelezegagujagemubejapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wunize.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 4

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_off000059ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59CE 5348 bytes
SHA-256: 9ea7c617f295ff18ff6ef9773b25f679a0e3a465e9059a6667028f6f633a22a6
font_01_sfnt_off00006c09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C09 10064 bytes
SHA-256: 4deb32814559a976c7f60b15cb12d6e4a4087188d75d74daaf3a9e0ffe28f1f0

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