Malicious PDF — malware analysis report

Static analysis result for SHA-256 71f0045473491d52…

MALICIOUS

PDF

39.3 KB Created: 2020-08-24 16:47:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 038862dfcaf36a06bdd105dfc45cebf0 SHA-1: a23a7b4b76f364b485301c3664e2fbc0044527af SHA-256: 71f0045473491d528e40bd3784bf4f8aa78b0cca79500964d25c52153b53564c
194 Risk Score

Malware Insights

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

The PDF document contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though partially obfuscated, includes the same redirector URL and references a 'vacation trip planner template', suggesting a lure. The presence of a large number of external PDF links, including those hosted on Shopify, indicates a link farm strategy to potentially distribute malware or conduct phishing. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=vacation+trip+planner+template In PDF document text
    • http://files.ameliakatjohnson.com/uploads/1/3/1/3/131379325/wamijudop_semeto.pdfIn PDF document text
    • http://files.spinaespresso.com.au/uploads/1/3/1/6/131606630/nesuwi.pdfIn PDF document text
    • http://files.themealsmaven.com/uploads/1/3/0/9/130969204/xopaturuwiz.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/1/0435/6138/6147/files/fepaxozovexulod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/6916/4968/files/suzonoxuturewegiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6141/files/jeliduwalogam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9056/5537/files/nhie_home_inspection_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3638/5175/files/4177109436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4977/7312/files/dafujagewefozebolitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3957/1616/files/54708918329.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: ameliakatjohnson.com 5 samples

Related samples 5

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_off00005f0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F0C 4868 bytes
SHA-256: 5c20af318a0d6b4dc77d021aecf4d7cbb9229ece6cf6f6f52b1c504b54501def
font_01_sfnt_off00006f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7F 9776 bytes
SHA-256: 1e37c73755817a012fc14e395e291847f74ea162ef3dff865979640793b486e6

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