Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b1224e8c5c6698…

MALICIOUS

PDF

41.3 KB Created: 2020-10-12 14:27:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 61332d44d09fb8cc3441addd5a9b14fe SHA-1: f09785fe88fc54b94d8ae1fd59d430f433a80df8 SHA-256: 72b1224e8c5c6698086fbb14e4ecf943554494811544b3fbe176fc81040e9e1d
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ggtraff.ru/strik?keyword=net+tv+apps+for+android In PDF document text
    • https://site-1043248.mozfiles.com/files/1043248/jexikiral.pdfIn PDF document text
    • https://site-1043237.mozfiles.com/files/1043237/31183031105.pdfIn PDF document text
    • https://site-1039346.mozfiles.com/files/1039346/vetukumisiwuxilufa.pdfIn PDF document text
    • https://site-1037827.mozfiles.com/files/1037827/xizotekimutu.pdfIn PDF document text
    • https://site-1038416.mozfiles.com/files/1038416/wusodikawenupuje.pdfIn PDF document text
    • https://site-1043536.mozfiles.com/files/1043536/fefafumuw.pdfIn PDF document text
    • https://site-1042092.mozfiles.com/files/1042092/riferem.pdfIn PDF document text
    • https://site-1038508.mozfiles.com/files/1038508/50037720455.pdfIn PDF document text
    • https://site-1048564.mozfiles.com/files/1048564/31283115972.pdfIn PDF document text
    • https://site-1039283.mozfiles.com/files/1039283/rotagewedakafaj.pdfIn PDF document text
    • https://site-1037275.mozfiles.com/files/1037275/35324732541.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/0334a040-c4b4-4fd2-9eb4-922efff5f618/tujodegafanoduw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3b000a6-30f7-4fd9-9cce-81b94d22ba19/99986579708.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b136039d-0b85-46fd-b864-ab0f9eefe1ce/genaratas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35f3a609-a8e5-471d-aad2-259f73266519/bofotodonum.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_off000065be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BE 5032 bytes
SHA-256: a9c5dbc1e848d4dd4f9f2015b51aa373f6f4a7fca7c84ee4217acf19d531992c
font_01_sfnt_off000076f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76F3 9816 bytes
SHA-256: 37495c3f07c74367accd4736866757cb4c4137e1cf1aae42703ec76f4dbeb436

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