Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5deb34f80808fe4…

MALICIOUS

PDF

330.7 KB Created: 2022-03-21 19:03:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: d37ecf90523925f1639b857bdd90fb8c SHA-1: 8ad23816d02fde9a86da74b8979d23af92bdd99d SHA-256: b5deb34f80808fe49e72f7d05fe59e39c635f4642e212e238ce21ef7c90d1565
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5879

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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://eros-arena.de/eros/userfiles/file/zotutitufodurutusubevaxo.pdf In PDF document text
    • https://www.anep.it/ckeditor/kcfinder/upload/files/98004855190.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fbb93f96b72---pugigesitenom.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161ff617e66792---fovozub.pdfIn PDF document text
    • https://tenfci.net/userfiles/file/gapab.pdfIn PDF document text
    • http://yaan121.com/uploads/files/202202172316006468.pdfIn PDF document text
    • https://agrocare.hu/ckfinder/userfiles/files/28803897375.pdfIn PDF document text
    • https://ducan.knjigae.com/userfiles/file/jugisafedewojebadikane.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20220202163549.pdfIn PDF document text
    • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/5ce5926e4b7923273f6f29ede7cfb1e8/94286865373.pdfIn PDF document text
    • https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/776accbc51ab8828406d94e2e2db5c84/verepadibabipusilozozape.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fd0c07bda9e---jabopo.pdfIn PDF document text
    • http://erdelyironkbutor.hu/admin/kcfinder/upload/files/91294740037.pdfIn PDF document text
    • http://glassinter.de/kcfinder/upload/upload/84988545504.pdfIn PDF document text
    • http://ganteltechnology.com/system/userfiles/file/rimisaxax.pdfIn PDF document text
    • https://decordesign.bg/admin/files/files/gorosubefiniri.pdfIn PDF document text
    • http://apexemergencias.com/images/files/3759953614.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16233f32e97d76---88074509776.pdfIn PDF document text
    • https://www.icfost.org/public/kcfinder/upload/files/51101292200.pdfIn PDF document text
    • https://shreenatharcade.evozonetechnolabs.com/userfiles/file/wewabiw.pdfIn PDF document text
    • https://sporyolu.com/resimler/files/pajevi.pdfIn PDF document text
    • http://sungsam.net/userData/board/file/94828578206.pdfIn PDF document text
    • https://kameno.bg/userfiles/files/rofinizusisofekiza.pdfIn PDF document text
    • http://geometrarontani.it/userfiles/files/27629468019.pdfIn PDF document text
    • https://neurondevelopment.org/userfiles/file/gepenisikuwivosab.pdfIn PDF document text
    • http://topflexsports.com/uploads/98504339553.pdfIn PDF document text
    • http://lakshimi-kaatsu.com/user_data/packages/default/imgfiles/bajuwokopuvisatisifowiji.pdfIn PDF document text
    • http://jnnycc.org/userfiles/file/84227572482.pdfIn PDF document text
    • http://greffe-cheveux-tunisie.fr/ckeditor/kcfinder/upload/files/dumunulilorivekebazimen.pdfIn PDF document text
    • http://laureysnv.be/uploads/files/85483607464.pdfIn PDF document text
    • http://www.perlodrink.com/documents/fevof.pdfIn PDF document text
    • https://mamo-tato.ro/userfiles/file/pekezaje.pdfIn PDF document text
    • http://firegallery.ru/img/upload/nokofiduvasiluguzagetopog.pdfIn PDF document text
    • https://lotte-ppta.net/beta/assets/file/42201803978.pdfIn PDF document text
    • http://likebarcode.com/image/files/20220303_205846.pdfIn PDF document text
    • https://ebmturonet.progess.com/userfiles/file/77539156747.pdfIn PDF document text
    • http://www.pnl.ac.id/asset/kcfinder/upload/files/safowotemipeb.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=single+phase+electrical+wiring+lab+reportPDF 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_off0004b2f4.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004b2f4.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004b2f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B2F4 10956 bytes
SHA-256: d8caf5855015cfeb603152f38f00619e6fd3ae1730def431797c12b39de8edbc
font_01_sfnt_off0004cc24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC24 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004e33f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E33F 20624 bytes
SHA-256: 66850b4361641161d09caa2b7e876ff736da9e8826ba0a3c5369583f81390773