Malicious PDF — malware analysis report

Static analysis result for SHA-256 279303edc7175a38…

MALICIOUS

PDF

80.3 KB Created: 2020-12-27 22:59:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7039e58ab6de57d367079b3f76941f42 SHA-1: 5409b7662e8e305897c438cf1ae8a30f2126d604 SHA-256: 279303edc7175a38d73ee8f7f6f82f389c6c59d667d99b40775bfc8c4534a294
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing document, specifically using a lure related to a train simulator game. It redirects to the URL https://trafficel.ru/strik?utm_term=train+driver+train+simulator+driving+game+2018, which is flagged as a redirector for free-download phishing. The ML classifier and ClamAV detection strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafficel.ru/strik?utm_term=train+driver+train+simulator+driving+game+2018 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4414358/normal_5fb6cfd363626.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473654/normal_5fe63617d8a3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496404/normal_5fb563dd34cf5.pdfIn PDF document text
    • https://cdn.sqhk.co/mixenezir/izyibJy/mind_games_offline_games_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/xojoweva/cjbheha/65442133083.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459479/normal_5fa519cbd66de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378830/normal_5f8f74168f31b.pdfIn PDF document text
    • https://cdn.sqhk.co/wetilusogaki/hcjagfu/root_board_game_expansion_list.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477637/normal_5fb49d3d10ed0.pdfIn PDF document text
    • https://cdn.sqhk.co/peluxisomex/1Amuvij/xagalaku.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380869/normal_5fad3834db670.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/outward_tsar_stone_duplicate.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/45253004164.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/puvesuxudimivozapumabeg.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/sole_custody_agreement_template_ontario.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/62272616577.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e629.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE629 5676 bytes
SHA-256: 099b8053db98f8123bc7343e7430137065f5711df02a04a883d9db21c25bf4bb
font_01_sfnt_off0000f970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF970 11292 bytes
SHA-256: 493a69a9b03f7664290022e1fc68ad3ec5f46f2917b72d85a9fcb61e24882291
font_02_sfnt_off00011f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F25 16060 bytes
SHA-256: d8a1a34de14a7b8fce5e51635835121d353d188f9ac9ce1e11538509fd4c5cdc

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