Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f08b7a0e689ea64…

MALICIOUS

PDF

35.1 KB Created: 2020-08-14 03:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 819fb8d45b9b8185bff1a892ad8def4f SHA-1: bbf4e33bf71e9008a0410e9fe016258b4fda387a SHA-256: 7f08b7a0e689ea64eab986dd4baf6d26028c1b19116e30f82db9afdf17e691c0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external PDF files, many of which are hosted on Shopify domains and appear to be part of an SEO link farm. The primary link redirects to a known malicious redirector infrastructure, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the target URL and references to educational material, indicating a lure to trick users into clicking the malicious link.

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=temperature+heat+and+thermal+energy+worksheet+answers In PDF document text
    • http://files.rautiaguitars.net/uploads/1/3/0/7/130740211/pumex-rokaponaxije-tufimejaretu.pdfIn PDF document text
    • http://files.ryannrase.com/uploads/1/3/2/7/132740499/3999358.pdfIn PDF document text
    • http://vujukez.jukkahuitila.com/uploads/1/3/1/4/131438759/153919.pdfIn PDF document text
    • http://files.goldtouchhair.com/uploads/1/3/0/7/130739544/neboluzejuxoxa-xufubuvuxojita-zirumij.pdfIn PDF document text
    • http://giperuziz.thecultivatedclassroom.com/uploads/1/3/1/4/131453540/mudot.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/1/0438/5194/0000/files/221072551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4098/7543/files/vozekudinuwiduz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7100/5082/files/82526802815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2067/3433/files/71469564899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/60942192743.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8576/5535/files/kupejegeruvaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8094/1729/files/vonekitezoxop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6746/files/adobe_reader_offline_installer_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6350/8121/files/94099162903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/lasovakuki.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 4

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_off00004c01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C01 5580 bytes
SHA-256: 8182d4fbf1e71a03de32faeb2acc0a18e75c56f50c33cb459ececef93f4c037a
font_01_sfnt_off00005eec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EEC 9452 bytes
SHA-256: 60fb771f15b9d01b301ee6f9e2a74b6fff93be80e9fca64f684a61a9ec7bb68b

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