Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd44faf8bf3f7610…

MALICIOUS

PDF

35.1 KB Created: 2020-08-18 14:27:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4628cdb095b90ff237a221e0a70626e SHA-1: 0942449297522abf7fe04e26649832d19b6f3214 SHA-256: bd44faf8bf3f7610f0d6149f4395af8950213814740306b2bf55bc344870d10a
202 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a known malicious URL, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text referencing a 'pirate hat template' and the malicious URL, suggesting a social engineering lure. The PDF_SEO_LINK_FARM heuristic indicates a large number of outbound links, many hosted on Shopify, which are likely part of a link farm to improve search engine ranking for malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=pirate+hat+template+for+adults In PDF document text
    • http://files.lifewithpetsgci.com/uploads/1/3/1/3/131380480/nasitawomekefaforepo.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/1/0440/5651/0616/files/turutesideferegepifovudil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/lovoxeviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mefopevepal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3474/6781/files/monster_manual_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3433/7695/files/8801061674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/mekugepolosotomor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8652/0224/files/38758947842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1163/7401/files/ford_vs_ferrari_movie_rating_parents_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7832/8224/files/vazoresimibuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4711/5157/files/pressure_points_in_human_body_with_pictures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1607/7991/files/juzevo.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_off00004ca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CA9 5280 bytes
SHA-256: e9043653dae2af8cf43ec54fa76c79a3448840a3aaa4bd02011f4bf73cf98271
font_01_sfnt_off00005e70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E70 9756 bytes
SHA-256: d043b8644d8b117e4ce1bd3b215489599efdb9cf486d822bec40d7452a3587f6

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