Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e379389de63ddd3…

MALICIOUS

PDF

80.6 KB Created: 2021-11-25 14:00:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 2947e6ca230785fb730c2f427ad3b7b0 SHA-1: 75e4cce613bac01ab82b3df1fe3f50b0a95559c6 SHA-256: 4e379389de63ddd32c3fc00e06da89b29ae18dd4ad612debb0c87ccc98d27c6b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9911

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 http://kriosispl.com/cote_dor_import/admin/ckfinder/userfiles/files/lisogapolijasedixil.pdf In PDF document text
    • http://hoteldanang.com/uploads/images/files/reresavuvekugovus.pdfIn PDF document text
    • http://fatimaartwork.com/userfiles/file/zanonebudobutotibap.pdfIn PDF document text
    • https://kolkataangikar.org/ckfinder/userfiles/files/bawib.pdfIn PDF document text
    • http://ristoranteibucanieri.it/userfiles/files/kutovipekure.pdfIn PDF document text
    • https://bushregenerators.info/userfiles/files/kidasogasef.pdfIn PDF document text
    • http://gospel-pour-100-voix.com/fichiers/newsletter/file/76841209356.pdfIn PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619448c9da18c---lizes.pdfIn PDF document text
    • http://fasson.vip/images/editor/files/90427058787.pdfIn PDF document text
    • http://kondicionery-ivanteevka.ru/upload_picture/file/67650124458.pdfIn PDF document text
    • http://jinwoosmc.com/userfiles/file/1123429748.pdfIn PDF document text
    • https://travelinnsuites.com/nbloom/fckuploads/file/bizuwusavinodizidakos.pdfIn PDF document text
    • https://thepainter.asia/upload/files/rejunoduriwozubebag.pdfIn PDF document text
    • http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/161812ec9d49b1---jebibavaravap.pdfIn PDF document text
    • https://fminterativa.net/cms/plugins/ckfinder/userfiles/files/numasonumif.pdfIn PDF document text
    • https://webmedcentralplus.com/userfiles/file/nubonatakexutixodisovelox.pdfIn PDF document text
    • http://cathugo-catamarans.de/res/wysiwyg/file/dopawawelabopafelulimugu.pdfIn PDF document text
    • http://abwjefferson.com/uploads/files/24107993232.pdfIn PDF document text
    • https://blagoustroystvo24.ru/ckfinder/userfiles/files/84688757709.pdfIn PDF document text
    • http://ancient-theater.gr/media/file/29832649382.pdfIn PDF document text
    • http://azs-szermierka.pl/zdjecia/fck/file/jajiboseporebasizedodez.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/1gug4e8pvuunj73c9m7rl0fkd0/josuwubadebamife.pdfIn PDF document text
    • https://dodomacnosti.net/data/file/kijixorelufofaru.pdfIn PDF document text
    • http://mikailang.com/userfiles/file/20211007114913_244608810.pdfIn PDF document text
    • http://www.fishandcosolicitors.com/uploads/files/90994551242.pdfIn PDF document text
    • https://mimpishio2bet.net/contents/files/forerodejakawe.pdfIn PDF document text
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615e758b877df---73574944145.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/xPAns0MRe5M/uplcv?utm_term=each+one+tree+one+essay+150+wordsPDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD729 10820 bytes
SHA-256: 0e704e5216298280f93c3d6ed95822ca2ebe7c35b03e2ae8943f4d4b5e76e00f
font_01_sfnt_off0000f04a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04A 17528 bytes
SHA-256: 767fc622eb07586bbd42d2c3169f9b32a88c8a4817ae62f48f007bf434b94dad
font_02_sfnt_off00011dd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DD0 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336