Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d95ba1d1a3748ff…

MALICIOUS

PDF

40.3 KB Created: 2020-08-08 02:47:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 666a02b9e4384018bb98b39445017e40 SHA-1: 2aef61c0929b74a04601d0d5365c3eef2b25f1d1 SHA-256: 8d95ba1d1a3748ffb74eb87e6567488da541eefe6e229f4d5dc527259288da80
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL designed to lure users with a search query for 'Star wars lego instructions pdf'. The document body contains this same lure and a list of numerous external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious URL is https://ttraff.ru/pify?keyword=star+wars+lego+instructions+pdf, which is likely intended to redirect the user to a malicious payload or phishing page.

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=star+wars+lego+instructions+pdf In PDF document text
    • http://files.gettemeiers.com/uploads/1/3/0/7/130738739/2592843.pdfIn PDF document text
    • http://files.sannihirvonen.com/uploads/1/3/1/3/131379060/5394388.pdfIn PDF document text
    • http://files.northwoodswolfalliance.org/uploads/1/3/1/4/131408581/fojiji.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/1/0431/8940/3810/files/wawanizipifevoratar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3224/7457/files/zastone_d9000_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/55713192732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5716/8027/files/60468176890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5042/6787/files/chaim_potok_zebra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5042/6787/files/48438307292.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2485/0842/files/camshaft_parts_and_function.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1659/3312/files/40338201276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9125/5713/files/1986913362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9888/9635/files/zapelubaju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7656/6684/files/11593428511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3170/5238/files/xikazub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1491/3191/files/autoimmune_hepatitis_score.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4291/3952/files/93168797978.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_off00005c69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C69 5520 bytes
SHA-256: c56bc300042cf336d8d3d2c57d0c9c48c15395dc57c1a8129fe7455328595283
font_01_sfnt_off00006f51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F51 10916 bytes
SHA-256: 481d2609e78c412b8f8191ee201f520eb08af0c4a1d9ecc322dd974261784b52

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