Malicious PDF — malware analysis report

Static analysis result for SHA-256 44516ff5e8d46c50…

MALICIOUS

PDF

66.2 KB Created: 2020-11-23 13:05:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-12
MD5: c455afc3f8b6f81ba3d93a668b3a510e SHA-1: 8238bf524a57280529c01002d69ca68cd9d927ed SHA-256: 44516ff5e8d46c50f4352a33e13f7f3980e7ae6fdaace0f7b0e716d241a0f564
136 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it's a phishing lure, specifically using an image to redirect to a URL associated with 'free-download phishing'. The embedded URL 'https://traffnew.ru/wb?keyword=crusaders%20quest%20berry%20guide' is the primary indicator of this malicious activity. ClamAV also detected this as a phishing trojan.

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://traffnew.ru/wb?keyword=crusaders%20quest%20berry%20guide PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384160/normal_5f95499a88f4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424689/normal_5fa408eb84713.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459784/normal_5fb9e0638db00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455684/normal_5fb88af57e57f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365636/normal_5f8b9923db61b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366311/normal_5f8770f7323e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370074/normal_5f88c281d1be9.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/gafedupeba/verbal_ability_test_with_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d579da81-45df-410c-8571-fdf3ff9487b8/libro_de_logistica.pdfIn PDF document text
    • https://s3.amazonaws.com/sosupejuxofedo/bollywood_movie_songs_free_website.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_off0000c7b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7B8 5232 bytes
SHA-256: ac5875987e0fcf12f213003724953940c10244f33453f2b0619d592ac81e3f92
font_01_sfnt_off0000d985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD985 10268 bytes
SHA-256: c8f333ae32b92a2bfabf2ccc2b6a4c9df4408f3faf61436cb6dfb6b0122aaad4

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