Malicious PDF — malware analysis report

Static analysis result for SHA-256 717fe138e2f9de0c…

MALICIOUS

PDF

46.5 KB Created: 2020-08-12 02:33:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f107c32e335555c27bb9ecc08e151ac SHA-1: 7520307a49a5d12c30290bfe138c82aefc0920e5 SHA-256: 717fe138e2f9de0c9189312e24928efe096b0f7ff4b50918392b0bd86ab2fce7
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, many of which point to a redirector URL associated with malicious activity. The document body, though heavily obfuscated, contains references to the redirector URL and other benign-looking Shopify URLs, suggesting a link farm or SEO spam tactic. 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=clasificacion+de+las+empresas+y+sus+caracteristicas+pdf In PDF document text
    • http://files.flurryoffun.com/uploads/1/3/1/8/131871416/5044465.pdfIn PDF document text
    • http://kosamu.geralynmontano.com/uploads/1/3/1/3/131380600/508cba9ffd0e9a.pdfIn PDF document text
    • http://zarezazi.waisolutions.com/uploads/1/3/1/3/131398097/1888499.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/1/0430/5757/8137/files/jozuropija.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9480/2581/files/monenevigodajokofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9835/6392/files/turevoxegugosupavepinexid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8011835234.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9808/7328/files/90059460684.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6215/6702/files/jawiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5594/6655/files/advanced_stroke_life_support.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1488/0405/files/kuputaxunikuxovafeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ketotojugidumirazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1642/files/bitcoin_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5723/3576/files/fefidasekufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0809/7436/files/89636391265.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_off000075e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75E7 5308 bytes
SHA-256: 91b825bf911c98f7b457d1baca2127e57e43cbc0f375afbb64280d29ff217416
font_01_sfnt_off000087df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87DF 10688 bytes
SHA-256: 7b1e111c097f109d1ddc9868e6b7ecc550d3a7559c34cd45fc04eeb4ee0b51c2

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