Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8b2c178aa4fcc97…

MALICIOUS

PDF

75.5 KB Created: 2022-04-03 09:36:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 720028eefc8fbf1b1b8394bc6e0c24d0 SHA-1: 810df02c6fe379a15dd60670654d61aab0ea87be SHA-256: a8b2c178aa4fcc97f9faedb78c581aa5c9f6c673e73e047df9338799ac931d0b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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
  • 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.
  • 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.
  • 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://yubit.co.za/YmrXLWy8?keyword=focusrite%20scarlett%2018i20%20manuale%20italiano PDF link annotation
    • http://ty6600.com/userfiles/file/60193716853.pdfIn PDF document text
    • https://fexiragija.weebly.com/uploads/1/3/1/4/131409693/vatoja.pdfIn PDF document text
    • http://heyumpnd.com/userfiles/file///fejire.pdfIn PDF document text
    • https://kuwupixunipava.weebly.com/uploads/1/3/3/9/133986845/314819.pdfIn PDF document text
    • http://ds-dq.com/uploadfile/1644771666.pdfIn PDF document text
    • https://suxasamivozafe.weebly.com/uploads/1/3/4/7/134705269/a88b712ee41.pdfIn PDF document text
    • https://www.transportesoro.com.co/admin/plugins/ckeditor/kcfinder/upload/files/58540107250.pdfIn PDF document text
    • https://sskundal.com/userfiles/file/jerajabasiwipojizujudewi.pdfIn PDF document text
    • https://warasogufav.weebly.com/uploads/1/3/4/4/134440103/zosogeve.pdfIn PDF document text
    • http://hairfibers24.com/upload/file/8067183497.pdfIn PDF document text
    • http://paoladebenedetti.eu/userfiles/files/14452154332.pdfIn PDF document text
    • https://zibividu.weebly.com/uploads/1/3/4/3/134316526/kirewejokut.pdfIn PDF document text
    • http://labsshop.com/d/files/57727281893.pdfIn PDF document text
    • https://truonggiangcompany.com/userfiles/file/lirubevaxaxa.pdfIn PDF document text
    • https://excellencetogether.com/img/files/file/64101502257.pdfIn PDF document text
    • http://ylplj.com/ckfinder/userfiles/files/45703231748.pdfIn PDF document text
    • https://lugijuvumefabi.weebly.com/uploads/1/3/4/7/134761930/jugapodabige-zinovolof-buratid.pdfIn PDF document text
    • https://qfse.co/images/uploaded_files/ckfinder/files/1648613798_1930d9321c.pdfIn PDF document text
    • https://jewelilug.weebly.com/uploads/1/3/4/3/134331877/denupodexeruluni.pdfIn PDF document text
    • https://nghiepvu.udicmanpower.vn/uploads/news_file/jinezogomovibaxulav.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000bff5.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000bff5.bin)

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBFF5 10968 bytes
SHA-256: 4f9da73e28c31bcb5e433ade1658ebde0496ee0b4bfaecab42fe2ec749d17174
font_01_sfnt_off0000d97d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD97D 18120 bytes
SHA-256: 0545b9de859a97c7570a2988dcf656ba1d4fa97597ffc859c65dfac381c8e8d2
font_02_sfnt_off0001088a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1088A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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