Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed40ad64293df4b…

MALICIOUS

PDF

75.6 KB Created: 2021-02-26 13:49:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 39d70a8b79376ebdeb6e7d38eeffd445 SHA-1: cd646458811f298c39e70b31591021d1a30a0bf7 SHA-256: 3ed40ad64293df4b23e79fc834b116928af4cad2d29438373434698c9a2e1f59
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a lure related to 'fiasco tabletop how to play' and links to an SEO redirector, indicating a phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to lead users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://golowaki.ru/award?keyword=fiasco+tabletop+how+to+play PDF link annotation
    • http://setofexperience.site/all_ireland_football_championship_2019_finalgr4o3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446287/normal_5fcb8ed476980.pdfIn PDF document text
    • https://cdn.sqhk.co/jonimaze/ohjghgI/usa_dating_site_free_chat.pdfIn PDF document text
    • http://help-lnstagramcopyrights-verify.com/linux_kernel_networking_implementatiois3t.pdfIn PDF document text
    • http://passive-income.ru/geometry_proofs_quiz_with_answerstmua2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413973/normal_5ffdf3d9c1760.pdfIn PDF document text
    • http://beautysss.site/zujomugonafemw1wrt.pdfIn PDF document text
    • http://koreanluxe.com/zulagamibekozelpj7ld.pdfIn PDF document text
    • https://cdn.sqhk.co/tigixexaxi/fiEhggh/wevebefamonaxifij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476146/normal_601db34bc800d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443799/normal_6025708d79d27.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/nemafu/android_one_que_significa.pdfIn PDF document text
    • https://s3.amazonaws.com/lebejos/5602787871.pdfIn PDF document text
    • http://dufogatate.epizy.com/77415881893.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/topaz_alfred_hitchcock_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/rofaxafer.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/28044865936.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_off0000ec7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC7F 5212 bytes
SHA-256: 12cfb22eb19e7376df680eaad5c55c7ae78fc6fa8f708b5503f3192cbd9c09a4
font_01_sfnt_off0000fe55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE55 10344 bytes
SHA-256: dc5c21376050740d85a9b7ed4dbc13edd8a923a94130e736dc9f3939c08b0da6

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