Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee799c5ceccaefd4…

MALICIOUS

PDF

40.5 KB Created: 2020-08-05 02:20:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46b44b5a14fe3e3dcfb36e32eaba023f SHA-1: 9c96f7c9705b91b715fbeec70d76010934e2dcdb SHA-256: ee799c5ceccaefd4d6a73c98a333b1ce792e1a378d5aa63d973fefbe316d33dc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The presence of numerous links, many pointing to Shopify domains with numeric slugs, suggests a link farm or SEO manipulation tactic. The primary malicious URL is https://ttraff.ru/pify?keyword=relative+clauses+exercises+pdf+1+bachillerato, which is likely used to redirect users to further malicious content.

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=relative+clauses+exercises+pdf+1+bachillerato In PDF document text
    • http://files.openhouseeducation.com.au/uploads/1/3/1/4/131410747/wituzubilitivi.pdfIn PDF document text
    • http://files.mollystreasuretrove.com/uploads/1/3/1/4/131407980/widev-sokikovafisibus.pdfIn PDF document text
    • http://files.camera1.ca/uploads/1/3/1/3/131380413/pizixejawij.pdfIn PDF document text
    • http://files.gordonmilneart.com/uploads/1/3/1/4/131452958/2101215.pdfIn PDF document text
    • http://files.landscapeservicenassaucounty.com/uploads/1/3/0/7/130775229/a82743db68.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/1/0428/4507/7660/files/67047793834.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/47047559009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/core_and_advanced_java_mcq_questions_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1103/0683/files/sofevekipuxoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/ruxere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1671/5429/files/77114872422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/6351/4012/files/lowes_terre_haute_indiana.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3577/0532/files/popevomojabosexiru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1588/9305/files/17682508989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/88831890760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0802/4985/files/18501591186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20597849085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0505/1029/files/wewevubelamedujatogixovo.pdfIn PDF document text
    • http://wwwedu.ge.ch/cptic/prospective/projetIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECD 5568 bytes
SHA-256: 0946e8f2f764181955c1b6c168e91343765772b11c1dfc3891a1cb1a6326e52f
font_01_sfnt_off000071c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71C6 10296 bytes
SHA-256: a2aea625bb76911c962c455f997d206497964fb39fe65bfce26f6c88b79239c7