Malicious PDF — malware analysis report

Static analysis result for SHA-256 3499caa68abf95aa…

MALICIOUS

PDF

39.9 KB Created: 2020-08-23 06:30:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6ebc7fa7e7d91e3a47dbeed9fad0dbf SHA-1: e8815640392b3165e4996a0f1fffab74ef282308 SHA-256: 3499caa68abf95aaff2bcd4dd23217ac13ba8bdeeecbb33fc5715a18608deb15
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to other PDF files hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=cudgel+crossword+puzzle+answer', is identified as a known malicious redirector. This suggests the document is part of a link farm designed to distribute malicious content or lead users to phishing sites. No scripts were extracted, and the document body is largely unreadable binary data.

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.cc/pify?keyword=cudgel+crossword+puzzle+answer In PDF document text
    • http://nopuvamo.mcgeeair.com/uploads/1/3/1/1/131164439/81674bc160f00.pdfIn PDF document text
    • http://wijop.acedhh.net/uploads/1/3/1/1/131163635/6471192.pdfIn PDF document text
    • http://kavemu.alissamschmidtphotography.com/uploads/1/3/1/3/131398020/wanemapiw.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/1/0428/3544/3875/files/winaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7839/3762/files/dungeon_master_s_handbook_5e_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/xigaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/1204/6230/files/iso_9001_version_2008_quality_manual_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9524/2392/files/mezosufejakekag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9293/2763/files/bleacher_report_manchester_united_vs_psg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/82037539406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3125/7510/files/analog_and_digital_electronics.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_off00005ec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC6 5288 bytes
SHA-256: d45d79eb74a486c7e476774658e700b0a88b70d0e8e0a5d1ef74411e6ecbc6dd
font_01_sfnt_off000070e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E9 9948 bytes
SHA-256: 4f7f92bdebf7d4f6eb4d8f21a32bdad2f7ad05ab690817f05f99afbc870a77ff

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