Malicious PDF — malware analysis report

Static analysis result for SHA-256 4505150c9599982c…

MALICIOUS

PDF

91.8 KB Created: 2021-08-17 23:03:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-25
MD5: 97f16a8b525b38d12a51557bf7cbb096 SHA-1: b74e06d77aa7a353274d9f823a34eab273d6e5b5 SHA-256: 4505150c9599982cf9583a4ddc9f81a48a16100013733f6b6cee19d58faadbaa
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160891e509b2c9---wasoriniburo.pdf In PDF document text
    • http://purifoy2020.com/clients/1/11/118d8b7ee1ea4bab8fb19da95c56260f/File/57515829941.pdfIn PDF document text
    • https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075fc3a04f84---56807692939.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ab41d72a19c---tujumikogefukopid.pdfIn PDF document text
    • https://slavica.ru/wp-content/plugins/super-forms/uploads/php/files/5fc2a3f3d12dc1d6b0824fdd3ae47aac/8187937004.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc2da9b3de---modipejomifimu.pdfIn PDF document text
    • http://emke.hu/uploads/ckfinder/userfiles/files/najodemibomasukonod.pdfIn PDF document text
    • https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/fd701ce39d2e3e5ad6abd0e3ea5fa8e4/vowirotonifedusuwodub.pdfIn PDF document text
    • http://www.serenissimaservizi.com//files/zinafonakexujukefakidek.pdfIn PDF document text
    • http://maidnheaven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d20f2b4705---47584563985.pdfIn PDF document text
    • http://ctyrkolky-gamax.cz/data/dokumenty/59951348290.pdfIn PDF document text
    • https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/3ac8672a0b95442f5a12573fe332fbf9/wuputevomazixusaximedafa.pdfIn PDF document text
    • https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/48c9cb4a7c51607d0f644c2adf97f1d1/29113714093.pdfIn PDF document text
    • https://www.colours-of.com/wp-content/plugins/super-forms/uploads/php/files/k36pot72r30h7ef9lqknrpk21j/molep.pdfIn PDF document text
    • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/3c3b34aa9ae291809f58b94559761def/97503947939.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/a4igtlip78qhfli6iarjg01a2s/kigenejiwozila.pdfIn PDF document text
    • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/c148d1279e886e6bab028d82115c1971/74143015859.pdfIn PDF document text
    • http://eakqshop.com/ckfinder/images_store/files/fitufaf.pdfIn PDF document text
    • http://www.amedna.com/userfiles/files/45987367745.pdfIn PDF document text
    • http://ziconiavip.com/uploadfck/file/82725599477.pdfIn PDF document text
    • http://exclusivelimoservice.com/ckfinder/userfiles/files/tigukofekufitigetaxav.pdfIn PDF document text
    • http://longchimvac.net/app/webroot/uploads/files/vutuzefivarobegofatakiriw.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080646c54c5f---rarenojazadajewum.pdfIn PDF document text
    • http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/16072d53348779---zujapafobobos.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=50+sombras+m%C3%A1s+oscuras+de+grey+pelicula+completa+en+espa%C3%B1ol+-+youtubePDF 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_off0000f7d0.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000f7d0.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f7d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7D0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FE2 20000 bytes
SHA-256: f4f53da491cc32405128cf898f9c4344620b7d32b1c0d33d01ddfc85054a8083
font_02_sfnt_off00014275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14275 11792 bytes
SHA-256: b4a30dc4e1ea2808bd0ad8f3ccafe0b279e36cf4d6379f6d6f4a743d97d063ab