Malicious PDF — malware analysis report

Static analysis result for SHA-256 7487eaf7bf4ea213…

MALICIOUS

PDF

68.6 KB Created: 2021-01-06 12:30:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 77534663a407cef89e976a489a0bbf54 SHA-1: 3b2163e076cdbc3181f6b9422ffd2a72bc8c04f7 SHA-256: 7487eaf7bf4ea2137c76b93d15f3cc0627daa8ded1709857b21e7aa90147541e
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains heuristics indicating it's a phishing lure, specifically using an SEO redirector with a deceptive filename. The embedded URL points to a suspicious domain, likely serving as a download or redirection point for a malicious payload. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffset.ru/aws?utm_term=japan+guide+osaka+train PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4490739/normal_5fc7e4aa8e4b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380545/normal_5f98be3f8344f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402486/normal_5f9109aee2341.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ace985a-5294-442e-abcd-fb2df3bf34be/lara_croft_relic_run_full_mod_apk_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2869a138-231e-4fbe-bc88-d39c92b28cb1/z_nation_season_5_episode_12.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/bajrangi_bhaijaan_full_movie_hd_pagalworld.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bce6f53f-3700-4995-b24c-0c2517fc39e9/15530753112.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/eal_worksheets_ks3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2f83881-d912-4966-aa03-8007ddd58c4a/92366171761.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/ziwawebelepexalim.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0C9 5148 bytes
SHA-256: 9d00217b287e865f1b4b561b53604b0de189fae489d3ef7d087f799761365465
font_01_sfnt_off0000e25f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE25F 10696 bytes
SHA-256: eefc05d5f609f352fe9ffc83dfcfb738c1d059c3737f4afb340af676cc4248c4

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