Malicious PDF — malware analysis report

Static analysis result for SHA-256 8594d284f29d4085…

MALICIOUS

PDF

44.6 KB Created: 2020-08-09 19:54:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 10c89546339034b44468302b461ace88 SHA-1: b4c8b7fb48064fa5daba3a625074d2353d57997d SHA-256: 8594d284f29d40853011f39f4aa87947d5140927556981d7b6f6ff9b932efc84
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure, specifically a redirector at 'ttraff.com'. This is indicative of a phishing or scam campaign aiming to lead users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

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=english+reading+and+writing+skills+pdf In PDF document text
    • http://files.littlehands.org/uploads/1/3/1/4/131407423/1128395.pdfIn PDF document text
    • http://jixogidi.empowerpilates.net/uploads/1/3/1/1/131164250/aa2d325.pdfIn PDF document text
    • http://files.northwaystudents.com/uploads/1/3/1/3/131379732/nudawanobid-rozudazutuxag.pdfIn PDF document text
    • http://files.ignitethejoy.org/uploads/1/3/1/4/131407051/jopazigo_xexesolowewajo.pdfIn PDF document text
    • http://files.interporcspain.org/uploads/1/3/1/0/131070774/sibeterononela-xogozijedukul.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/1/0435/8032/6051/files/58317844956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4718/9670/files/damunamaxupezimuborusor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4105/4105/files/36297668798.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6277/8263/files/12977796833.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6191/9390/files/65935084197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8750/4294/files/74007415055.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1197/9939/files/assistive_technology_in_the_classroom_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9963/4328/files/vomanojeniwagadifikizev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/chapter_43_the_immune_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7053/5318/files/seat_of_the_soul.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_off000070af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70AF 5416 bytes
SHA-256: 3aa23911003bc63eae63b2a3c46dfd8bb1f4692d8f787226d2e059077664d64c
font_01_sfnt_off0000832c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x832C 10024 bytes
SHA-256: 0ea9bd9e4f872345a085a3c21c4735fba0df1c6f453e56f0a5aa75cf356771ca

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