Malicious PDF — malware analysis report

Static analysis result for SHA-256 875d451f3685986a…

MALICIOUS

PDF

77.8 KB Created: 2022-04-06 17:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-05
MD5: 19d79720f5197826f162c928aa102ab9 SHA-1: af297288d45aa7aa0e1147dbd8b35d37f6896ed2 SHA-256: 875d451f3685986a59429310156b875b457ecc6c301b4ea558f19894301e32ce
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://folarudivol.weebly.com/uploads/1/3/1/8/131871739/441721.pdf In PDF document text
    • https://nirasiban.weebly.com/uploads/1/3/4/3/134344158/jufer_fazibutumeta.pdfIn PDF document text
    • https://nizakibete.weebly.com/uploads/1/3/4/3/134386075/b1a1b221.pdfIn PDF document text
    • http://sasmedm.com/www/js/ckfinder/userfiles/files/tawikojovajudetig.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621e729d3c9b5---zomiwi.pdfIn PDF document text
    • https://lajutowip.weebly.com/uploads/1/3/7/5/137512408/0b9d2.pdfIn PDF document text
    • http://123podkrovie.sk/editor_uploads/files/10089022362.pdfIn PDF document text
    • https://fomexiterejetax.weebly.com/uploads/1/3/4/4/134435806/3246890.pdfIn PDF document text
    • https://mufaguzesevulet.weebly.com/uploads/1/3/2/8/132814956/8620494.pdfIn PDF document text
    • https://bandloc.com/FCKeditor/file/30095993063.pdfIn PDF document text
    • https://anotera.kopro.fr/userfiles/file/17858691492.pdfIn PDF document text
    • https://sadusobagobazep.weebly.com/uploads/1/3/0/7/130776682/gasitokamaf.pdfIn PDF document text
    • http://villapastello.com/admin/data/files/files/mazanidusav.pdfIn PDF document text
    • https://tanibabinilez.weebly.com/uploads/1/3/4/0/134018029/tewojomo.pdfIn PDF document text
    • http://longbienco.com/js/ckfinder/userfiles/files/wirudogozowuwutabojasa.pdfIn PDF document text
    • http://lavender-farm.ro/app/webroot/js/kcfinder/upload/files/60751582977.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/cjkg7bg8jjb0e86p3qnjfjbl93/57610352375.pdfIn PDF document text
    • https://sisikirores.weebly.com/uploads/1/3/4/5/134529142/3632e5d3.pdfIn PDF document text
    • https://euronet.stonavka.cz/webpagebuilder/ckfinder/userfiles/files/zonikagupif.pdfIn PDF document text
    • http://vrieshorst.nl/images/uploads/file/64922596771.pdfIn PDF document text
    • https://wemuwenaxi.weebly.com/uploads/1/3/5/2/135298044/sarewotu_pijoso_woporutime_xixujefaxa.pdfIn PDF document text
    • https://loheb.co.za/YmrXLWy8?keyword=how%20to%20do%20the%20wim%20hof%20breathing%20methodPDF link annotation
    • 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_off0000caf3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000caf3.bin)

Related samples 8

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_off0000caf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAF3 10804 bytes
SHA-256: 238cfa86bb01be2f984b7169826dfba0a83ddb5e6730e91bd4e5ea67556e3b22
font_01_sfnt_off0000e369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE369 16616 bytes
SHA-256: e47f4ca50e7d5e85e95cd2985a38fbae5c4662aed814ca30d06ba6c6555e9ea3
font_02_sfnt_off00010ed6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ED6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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