Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ec86b6eb2cac7a…

MALICIOUS

PDF

61.4 KB Created: 2020-12-10 02:50:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-21
MD5: 51ca8d188a79afc34d89bdff3d1aa9d6 SHA-1: e1b2a994ea95b578a6c952ff962fa19ef6a0aa02 SHA-256: d3ec86b6eb2cac7a25d33464cfe849f8b98bd6263645cbd7eaf02f90ca986bfc
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://cctraff.ru/strik?utm_term=out+in+spanish In PDF document text
    • https://kakoxisowi.weebly.com/uploads/1/3/4/3/134358665/divotuluvasananada.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/juliziwojatige/jupepejixixixenilevem.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1d3b3f9866f3fd2dadad4/t/5fc3192f4f98375720455045/1606621488330/72573066484.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8eb0722c-65b9-4b6c-9d55-ac7292af3295/toro_sprinkler_controller_manual_greenkeeper.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/ezreal_build_guide_lol.pdfIn PDF document text
    • https://s3.amazonaws.com/tinezedu/1500334110.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/942bd0df-4a27-4996-9de2-bf91ce0fa93d/71390680424.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13993c3a-060d-4c13-8f96-88bcd036f9b8/kebujikejitarefiwu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73784456-599b-4a8f-856b-88a64c44816f/marcus_junius_brutus_the_younger_facts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/51916819-89da-4c02-82af-7779a19ccea8/boxukilibi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/891a53f1-82fd-42fc-b053-6acf1e2a9bc1/stickman_badminton_2_unblocked.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_off0000b673.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB673 4808 bytes
SHA-256: 3ff9395ae795ec67a03a1ca57414f0d3158d687d50d80ad8aded634072c95b27
font_01_sfnt_off0000c6c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6C8 10244 bytes
SHA-256: 6d51b716767d9c343863b390f5243c72b6c6d922eab5a208ef240e3bc7eaafbb

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