Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0e413a628f30021…

MALICIOUS

PDF

43.5 KB Created: 2020-08-09 04:44:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a4d9bac937b383925fc95721e98319c9 SHA-1: f9d883d3e1f74bf17300809225dcce9275340f4f SHA-256: d0e413a628f30021bbb73d6745c609bdf575cdc8b4e945f2e89297a19c8b02f4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.ru/pify?keyword=adductor+strain+protocol+pdf'. The document body, though heavily obfuscated, contains references to the same URL and other PDF files hosted on Shopify, suggesting a link farm or redirection scheme. The ML classifier strongly indicates maliciousness, supporting the conclusion that this PDF is designed to redirect users to malicious content.

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=adductor+strain+protocol+pdf In PDF document text
    • http://files.vitalbalanceonline.com/uploads/1/3/1/4/131409761/ad58f3616.pdfIn PDF document text
    • http://files.oilfieldfrclothing.com/uploads/1/3/1/4/131412558/2830019.pdfIn PDF document text
    • http://latobum.aleksandragwardiak.com/uploads/1/3/1/6/131637309/9344566.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/1/0427/8019/7031/files/30529821952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7086/6079/files/geankoplis_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/complex_numbers_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9148/3041/files/44424532842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/34039775749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/doluwewozopawezomofizavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/atago_abbe_refractometer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1415/2607/files/xebabes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7052/1495/files/wikupegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/lusizotin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4089/7184/files/sophie_s_world.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9617/7816/files/methow_valley_bulletin_board.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0886/0065/files/que_son_los_riesgos_psicosociales_en_el_trabajo.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_off00006d4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D4C 5140 bytes
SHA-256: 021f5eefe891b3b691b56ecab3c2b3f57b46f3cd07bb8ddf30b47b2e6e950d6c
font_01_sfnt_off00007edb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDB 10140 bytes
SHA-256: 0ff3d297fb72d2d13aa31fd365943116f240a01f532cac4c3887cfc814ca844a

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