Malicious PDF — malware analysis report

Static analysis result for SHA-256 720fc3306a7b70d9…

MALICIOUS

PDF

33.5 KB Created: 2020-08-06 22:05:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d5d61bca00c0cc77eb646418139795fc SHA-1: bc5da8d1ebaab98b9577b042660839577cfcb656 SHA-256: 720fc3306a7b70d98a6c96d84a4aa3fe7801ab1bd8ea80441c8c1ba4fee9c529
194 Risk Score

Malware Insights

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

This PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified as a redirector at 'https://ttraff.cc/pify?keyword=bearing+man+catalogue+pdf'. The document body, though heavily obfuscated, contains references to this URL and other PDF links, suggesting a phishing or malware distribution attempt. The ML classifier strongly indicated maliciousness, supporting the classification of this file as a malicious redirector.

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=bearing+man+catalogue+pdf In PDF document text
    • http://files.connectivityusa.net/uploads/1/3/1/6/131637038/juburevevunexo-kimedinusilir-poluxev.pdfIn PDF document text
    • http://files.jeanisaacson.com/uploads/1/3/1/8/131856158/nopefenelato.pdfIn PDF document text
    • http://files.ccnaacademy.com.au/uploads/1/3/0/7/130739996/77c436.pdfIn PDF document text
    • http://files.speakeasyleather.com/uploads/1/3/1/0/131070611/1018784.pdfIn PDF document text
    • http://files.locomotiveespresso.com/uploads/1/3/0/7/130738951/dipopejazavese-kimidinor-wixesa-datojufoxoj.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/1/0429/5249/1159/files/35157052671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9921/0407/files/74937124326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/64908066248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0729/6163/files/gutetamawedujek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/78547652605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4764/8406/files/30982757579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/sunesukuxivojedo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2875/0234/files/xuxigilufudugi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7806/5055/files/sekuvexorilape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0133/0339/files/40256967141.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 8

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_off00004461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4461 5344 bytes
SHA-256: 8531810b561dda8c1550ea59fd8ebb9378c6115be5779c57ea2cef6b51a31b1f
font_01_sfnt_off0000567e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x567E 10328 bytes
SHA-256: ab3a902657bfbff1fe5d07f9a604dcc3f2a5873fa0242a1b190b2e94b61db723

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