Malicious PDF — malware analysis report

Static analysis result for SHA-256 86a1ffcf4a2a43bf…

MALICIOUS

PDF

63.0 KB Created: 2020-08-07 12:46:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a0eafd8bcc2a51ec02aaf9e8cc0a67d SHA-1: 7d49665795a9e2033091981591ed2f99e302f609 SHA-256: 86a1ffcf4a2a43bfb6dba42df63485c7c11c4153bb9fe76ee114d5c4cc72126d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting a phishing or scam attempt. The presence of a link farm and redirector indicates an attempt to drive traffic 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/pify?keyword=canon+5d+mk+iii+manual+pdf In PDF document text
    • http://files.antiaginguniversity.net/uploads/1/3/0/8/130874119/pukemefimodi-fepuka.pdfIn PDF document text
    • http://files.katialubchenko.com/uploads/1/3/1/6/131606674/4148436.pdfIn PDF document text
    • http://nisogu.panagiotisandreoglou.com/uploads/1/3/1/8/131872225/xujupin.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/1/0433/0687/7080/files/62856854762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/nijimowezugotijuzaxuwiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6227/1898/files/terikux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1687/9271/files/ftb_legacy_launcher_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/viborovikumowenaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mowelikuzamutaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9117/9160/files/voltaire_candide_ou_l_optimisme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6704/0154/files/suxajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8144/1181/files/cursive_alphabet_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7976/1061/files/3017337144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8910/6846/files/lumozetofunejukubuvuvinik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0614/8255/files/56122638574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/zonuforanotevagajibisatef.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_off0000aa5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA5A 5004 bytes
SHA-256: f7ada6b8c439494082ee4de88298ccf6ce3c1f67dd3ffaee9b46f137e74d2a0f
font_01_sfnt_off0000bb5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB5D 15916 bytes
SHA-256: e806517e95518db9a34975ae8d52eed83bc74264ae2e2a64877973dfd63d3756

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