Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce17f91f8c990338…

MALICIOUS

PDF

41.9 KB Created: 2020-08-12 15:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d80d943f7bcdaaef9f5a7cf2bbb2bb66 SHA-1: ad74fd294cb1702df8e1ee78b8d9c51107c1070d SHA-256: ce17f91f8c990338f31c379d2113531a451fab5af5a0894a8b0308108c0a33b9
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which likely serves as the initial stage for delivering a payload. The ML classifier strongly supports the malicious nature of this document.

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=nsw+maths+syllabus+stage+3+pdf In PDF document text
    • http://files.themindfulchristian.net/uploads/1/3/1/3/131384573/xutumazokisu.pdfIn PDF document text
    • http://nenat.thetorrancecarpetcleaners.com/uploads/1/3/1/8/131855997/3031422.pdfIn PDF document text
    • http://files.vendinova.com/uploads/1/3/1/4/131407144/24352c202aefdb.pdfIn PDF document text
    • http://files.leblancconsulting.net/uploads/1/3/1/4/131482864/3226657.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/1/0435/9729/9869/files/domapoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9702/1854/files/fagadonofaverolex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2639/8888/files/educational_psychology_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2001/6021/files/penalunopavozodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/how_to_clear_all_messages_on_discord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4911/5029/files/ropagexekib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4633/7693/files/win7_hosts_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/7554/6791/files/alcatel_pixi_4_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1992/6679/files/kaxexegepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5850/3584/files/jiraremor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0173/2520/files/cashless_transaction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5095/0041/files/revitevigaragudexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1806/7866/files/mufutaloxurirovadidomus.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_off000061d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D3 5824 bytes
SHA-256: 82df6ae528bd11ee4e1303e5cca3b7bfdcacccf77f3e6819d2183748245e2e70
font_01_sfnt_off000075a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A5 11036 bytes
SHA-256: 4a977b15ec950b0fb93b0ac9113c49092149e0b5f7494c54afce92b11e9292fb

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