Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf78c078014df27c…

MALICIOUS

PDF

45.8 KB Created: 2020-08-10 05:12:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a46ece915f4a375e81e01e8835f0475 SHA-1: 9addbbe592cf10352ca337bd8bbf6b8bc23a0fa8 SHA-256: bf78c078014df27c8f7fe94ac1c82facd5742de321ca9b235864180dcec1881e
194 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many pointing to Shopify domains, but one critical link redirects to `https://ttraff.ru/pify?keyword=genetic+algorithms+and+genetic+programming+pdf`. This indicates a link farm or redirector used to obscure the final malicious destination. The document body itself is largely unreadable binary data, but the presence of the malicious redirector URL is a strong indicator of malicious intent.

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=genetic+algorithms+and+genetic+programming+pdf In PDF document text
    • http://files.volunteerconnectnow.org/uploads/1/3/1/3/131379578/298450.pdfIn PDF document text
    • http://files.johnjosephhayes.com/uploads/1/3/2/6/132682295/gujif.pdfIn PDF document text
    • http://files.scratchartedinburgh.com/uploads/1/3/0/7/130740458/norefiliguwox.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/1/0434/0292/0086/files/free_bradygames_strategy_guides.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6384/files/selagamez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0744/2072/files/46248288297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2537/5130/files/espn_wnba_scoreboard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4479/8613/files/sutopazogaxenab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6787/4207/files/53604051542.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2182/0313/files/94018742304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1304/5398/files/mobile_plans_microsoft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6248/0296/files/southwest_confirmation_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/31293453693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8775/5432/files/hangman_game_java.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6622/8898/files/12334504746.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2109/8408/files/cours_sur_l_afficheur_7_segments.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2136/8482/files/69362685744.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 8

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_off00007481.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7481 5600 bytes
SHA-256: 2cda783a4746a51e0d48d738d8968f14e12b9bfe00eef2a09b019a3eb7288baa
font_01_sfnt_off00008767.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8767 10084 bytes
SHA-256: 492d0f72d6aaada0b7eda9b73b2225a11c81c2549fc0c1d5b2f5434e40a642df

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