Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d31a2058893d150…

MALICIOUS

PDF

38.3 KB Created: 2020-08-15 03:01:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9ef4cbdfb86105a9bf0339ca1e3ddd99 SHA-1: 5044fac92f6a07b2eb03c97738d98b300a63a63c SHA-256: 3d31a2058893d15067bff740dd38f5384e558d593b7a8004cb55c4d3bb026e89
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=hipaa+guidelines+2018+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The presence of a large number of external PDF links, many hosted on Shopify, further supports a link farm or SEO poisoning tactic to obscure the malicious redirector. No scripts were extracted, but the malicious link is sufficient evidence of a phishing or redirection attack.

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=hipaa+guidelines+2018+pdf In PDF document text
    • http://files.polesworthpoetrytrail.org/uploads/1/3/0/7/130775001/8c937.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/1/0430/5122/1146/files/wexuvafalupovev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6595/6759/files/toefl_practice_test_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8279/2606/files/vmware_interview_questions_and_answers_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0776/9750/files/wuzefapekekuxoputisuranir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/gold_gym_trainer_420.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6653/0721/files/62450580774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7072/3998/files/wibutozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4856/6933/files/55969634091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73768917897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3048/5915/files/27773780578.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
🗂 Part of campaign: polesworthpoetrytrail.org 3 samples

Related samples 3

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_off000058ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58EF 5592 bytes
SHA-256: de3453d394e71c6a70f73ad20626f91691192c56635820939737b5cc1f0b3059
font_01_sfnt_off00006bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFD 9688 bytes
SHA-256: f1fb6876abffd506ed24e601ec9f786718c90dc59ef450ad8312eb618a6fb39e

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