Malicious PDF — malware analysis report

Static analysis result for SHA-256 863263ac9fb27ac9…

MALICIOUS

PDF

44.8 KB Created: 2020-08-27 17:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 97de24db2494f99837808afc7824d2f0 SHA-1: b3d2035212491fe3fc1014ff46f526604b81086f SHA-256: 863263ac9fb27ac987f6a2bc923831ccc7049438b3c896970f991ca6b04afb1f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links, many of which point to a redirector infrastructure. The primary malicious URL identified is https://ttraff.com/pify?keyword=invention+of+television+pdf, which is flagged as a malicious redirector. The document's structure suggests it is part of an SEO link farm designed to lure users with seemingly legitimate PDF titles, ultimately directing them to potentially harmful 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.com/pify?keyword=invention+of+television+pdf In PDF document text
    • http://files.lizziehobbs.co.uk/uploads/1/3/1/3/131380777/2c651caee9.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/1/0431/0066/8065/files/pewirabekaka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0332/2261/files/story_book_to_learn_english.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2848/7072/files/bronson_2008_full_movie_480p.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xasojikunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5461/files/tefof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8787/8549/files/german_story_books_for_beginners_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4603/4843/files/suffolk_county_police_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/xameg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/xotepulixemukenaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/bakers_cyst_nhs.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 2

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_off0000720d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x720D 4728 bytes
SHA-256: e6492cfd38cb847e42cf9b7ebf896e4f28acd3945843064a47133e42df6ca879
font_01_sfnt_off00008242.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8242 10564 bytes
SHA-256: ecf8c05497eda811b21b568ab1d9721af9f24671e9f57ffe004415b85a6896fc

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