Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8be95ae34f5f85b…

MALICIOUS

PDF

248.9 KB Created: 2022-03-28 01:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 41fb444ed04a3d23eb13894959896703 SHA-1: bf788d5af3597fe3263bc0138aa8770c20918475 SHA-256: a8be95ae34f5f85b004c6ff0b5c071a7d3660dcb03a3896b20a40e65945c209f
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8531

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 https://dagvandearchitectuur.be/_files/file/86426823927.pdf In PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa48c22d20f---wifavusibizidam.pdfIn PDF document text
    • http://asr-net.ru/uploads/files/25478941466.pdfIn PDF document text
    • https://magnanerie-cazilhac.com/userfiles/file/vazevudowujanazexe.pdfIn PDF document text
    • http://riverside.tw/user_upload/files/wuxifevadojami.pdfIn PDF document text
    • http://forcedainik.com/dbros/public/ckeditor/kcfinder/upload/files/minivevuba.pdfIn PDF document text
    • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/162241c345953f---sigatuvebotakevuka.pdfIn PDF document text
    • http://coffeexclusive.com/kcfinder/upload/files/68483066070.pdfIn PDF document text
    • http://karmakonnect.org/DrumiBhatt/karmakonnect.org/Final/ckeditorimage/files/39094842936.pdfIn PDF document text
    • https://nvsrolko.org/ckfinder/userfiles/files/75177153480.pdfIn PDF document text
    • http://nagymester.com/admin/kcfinder/upload/files/13106008861.pdfIn PDF document text
    • https://maintenancebazaar.com/userfiles/file/99898909910.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/002f4a3c5dbc8bf922b808a0676ae1ec/11561345042.pdfIn PDF document text
    • https://www.apgicl.com/public/files/assets/ckeditor/kcfinder/upload/files/dagivejifikoniposinuvomo.pdfIn PDF document text
    • http://pk.mo/userfiles/file/netewokitafibifetoxojoxu.pdfIn PDF document text
    • http://energywork.pl/userfiles/file/25004226222.pdfIn PDF document text
    • https://alhouti.com/userfiles/file/fogejajekulatin.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/xereduzinakinituf.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16234e583e8cb3---87648908619.pdfIn PDF document text
    • http://vinarstvi.webra.cz/userfiles/file/15872116617.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/161fb5a205b5c2---90362946609.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=atube+catcher+3.8.9000PDF link annotation
    • http://s292376414.onlinehome.fr/datas/imgmail/file/26013807986.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_off00036d1c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00036d1c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00036d1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36D1C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00038437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38437 22332 bytes
SHA-256: 785dd61c79f7b44f1b5a3536d071848d9a5689417ff158d6b6c54b13c263a8ab
font_02_sfnt_off0003bc37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BC37 10756 bytes
SHA-256: 203cb3f1d53579258399f499dc13b413c9954cef2768aafc7fa42c311d7f315d