Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f1be9488a23317f…

MALICIOUS

PDF

49.8 KB Created: 2020-07-28 03:51:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fe090a0b0d9134449d783d980d865a7f SHA-1: 22aa4a176a03f01053b0daafec2e9199c81dcf0b SHA-256: 6f1be9488a23317f79f09967f331756662e4b5acda40b6ef4631830df3831bd6
194 Risk Score

Malware Insights

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

The PDF file contains embedded links that redirect to malicious infrastructure, specifically a redirector at ttraff.com. The document body, though heavily obfuscated, suggests a lure related to 'letterhead template word format'. The presence of numerous links, many pointing to Shopify domains hosting PDF files, indicates a link farm designed to obscure the malicious redirector. The ML classifier strongly flagged this PDF as malicious.

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=letterhead+template+word+format In PDF document text
    • http://files.emmadcohen.com/uploads/1/3/1/0/131070525/36493ddcec45.pdfIn PDF document text
    • http://files.jagartsupply.com/uploads/1/3/1/4/131453990/17c8b2832.pdfIn PDF document text
    • http://files.kimballstjosephs.com/uploads/1/3/1/4/131453494/bitoligogavadesunir.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/1/0436/0696/6429/files/51128280538.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3503/2737/files/fazade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/poxavugebazitobazige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6356/6755/files/20439124806.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7618/2426/files/zokopufipadod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8546/3713/files/xetomozorowibufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9998/5822/files/43020025822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xatet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/11993778599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1682/2692/files/zabop.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 4

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_off000087a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A1 4768 bytes
SHA-256: 480cb4bca1e46b24c06b7014165b6349ae7656db9a7e6e3a4a03918b49c1848c
font_01_sfnt_off000097e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97E4 9940 bytes
SHA-256: 90a6141e9fb74eb68a56880706168f92a31ae13e125f92fe066d5546affb9366

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