Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d06510213d250d5…

MALICIOUS

PDF

62.6 KB Created: 2020-12-22 20:27:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 4fdef936c884323b61c1d91f2b77418b SHA-1: 7ec5c32b2eba7537ded4a4054d292cb619acb74c SHA-256: 6d06510213d250d537b5dff7b55c64b6f45d3347498e770df4f7988a0a44625d
136 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as phishing. It contains an external URI and an SEO redirector link that points to 'https://trafftec.ru/strik?utm_term=kit+logo+chelsea+dream+league+soccer+2020', suggesting a phishing lure disguised as a free download. No scripts were extracted, but the PDF structure and heuristics strongly indicate a phishing attack.

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://trafftec.ru/strik?utm_term=kit+logo+chelsea+dream+league+soccer+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4457311/normal_5fdc4a94213c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492880/normal_5fdf2749f3073.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368976/normal_5f8bd0fdb685d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404755/normal_5fc45d9c15509.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/feseni/wolubenarot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00e06472-88ac-4f85-a7ac-6f82ea151cd8/porofasoluwebabaw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6ad4cbc-6c91-4d9b-91ae-46da9a04515c/geruji.pdfIn PDF document text
    • https://s3.amazonaws.com/tojabixefova/dvd_games_to_buy.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/297f88f1-18eb-4fae-b3be-838b1195abf9/remote_jobs_from_home_nj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70b63a61-de28-464c-bb23-032e5925d4b6/wokoperawukofa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f47c845-f30c-4713-b2a9-22508b7a212b/nijawurisoruker.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/bioshock_2_strategy_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/smallest_island_in_the_world_size.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_off0000b757.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB757 5596 bytes
SHA-256: be545ca63235c5f26cd84ac1f3897d934465df5b188307933c4b710333f1d77e
font_01_sfnt_off0000ca39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA39 10552 bytes
SHA-256: 6a2f14a243a98d3943dbe6c3e82bf3925573968ef9934ba85c39cc293de4ae46