Malicious PDF — malware analysis report

Static analysis result for SHA-256 65b7fa447c81c3e1…

MALICIOUS

PDF

33.7 KB Created: 2020-08-05 15:43:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c6653bb334a43ac668e5ef3c7745599d SHA-1: bcfb13835182b87b67459097f67a7851f93c134f SHA-256: 65b7fa447c81c3e106b9930e831e4cda477cdd30140b0806e837dc5fd528488a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO manipulation tactic. A critical heuristic identified a link to a known malicious redirector, ttraff.com, which is also present in the document body. This indicates a phishing or scam attempt, likely using the lure of a manual download to redirect users to malicious infrastructure.

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/wb?keyword=apc%20back%20ups%201500%20manual In PDF document text
    • http://files.mingcha.com/uploads/1/3/1/6/131606115/3153331.pdfIn PDF document text
    • http://files.crystalriverpublishing.com/uploads/1/3/1/1/131164351/ead0e48eccb5.pdfIn PDF document text
    • http://files.wavehogsurfshop.com/uploads/1/3/1/1/131163601/terikefejidibe.pdfIn PDF document text
    • http://files.jrsamshoes.com/uploads/1/3/1/4/131453054/7372303.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/1/0449/3528/2856/files/1989_ford_f150_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/3012717594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/96243237546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/zetagugon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3012/6490/files/soxotesufapumusewasadig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3415/6967/files/88845337085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/simoun_episode_1_english_dubbed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7977/8979/files/wasewili.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0762/2824/files/nosokisuridapetojamope.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_off00004496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4496 5492 bytes
SHA-256: 4a105cd00dcebe2eae4192357cd91807d2578d1445e4d743e3cf5cb0971f0afd
font_01_sfnt_off0000573d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x573D 10264 bytes
SHA-256: 00362d9213fd99ae4128c7306f449ccaacd9e9915a379b082be961eacfd6a701

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