Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b7e8bd1743bdbb…

MALICIOUS

PDF

65.9 KB Created: 2020-11-24 08:52:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 27f82f45be726a18a1f030a9daa66da8 SHA-1: 5b788c38693a47b38dbfb2a6d9f85e93c050964b SHA-256: 72b7e8bd1743bdbb3517e98de23d05c54c8361bac16c416421a0910c55b0d53d
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/strik?utm_term=the+first+spongebob+episode+ever+made In PDF document text
    • https://zipazoraxegav.weebly.com/uploads/1/3/4/3/134325660/visame-vabekodajeso-moxolapekuz-gikesixepamibo.pdfIn PDF document text
    • https://zipazoraxegav.weebly.com/uploads/1/3/4/3/134325660/waxelawakofaxixebe.pdfIn PDF document text
    • https://bizumoku.weebly.com/uploads/1/3/2/6/132681494/fakovitexagazen-nuxaliladovobos-zuxasuru-zileniwijebunab.pdfIn PDF document text
    • https://zupawifotifawe.weebly.com/uploads/1/3/4/4/134480263/0a426b24ce41.pdfIn PDF document text
    • https://wesotapaxo.weebly.com/uploads/1/3/4/4/134488604/rigavifedi.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/c77f8c7d-ee14-4fcf-9120-a03a37d978ff/pafiwepopanox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f90599be-89c6-461c-a656-56387bee3503/kevepad.pdfIn PDF document text
    • https://s3.amazonaws.com/gumagabu/mhw_gunlance_guide_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/lubexif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba9729c9-2a47-44f6-baf5-6ea5634a28d3/hess_law.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/724171e8-d615-4467-813f-403eaffd9201/mororekibixumun.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_off0000c461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC461 5572 bytes
SHA-256: 743e1e2480b5297627995e35a568d8061387f95a98a90cc875ca56e7cd6caf19
font_01_sfnt_off0000d72d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD72D 10508 bytes
SHA-256: c84c4d4ee469d0aa8cc5c9340a6ecd93c4709b789f238e471400d42de808b920

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