Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d87651a44e937aa…

MALICIOUS

PDF

261.0 KB Created: 2022-02-06 19:09:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 9b7ed941806ac260b7e29b6d26453f2e SHA-1: f6e1fed1bcd0029946e86595e36334b1ae4fe588 SHA-256: 5d87651a44e937aa90c40bd824c33988d9a2cb08f177136e058d6eb3f2e029cc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7863

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://tevav.co.za/XSRYdR1H?utm_term=consumer+reports+external+vacuum+sealer PDF link annotation
    • https://ckmusicdesign.nl/userfiles/file/43634970427.pdfIn PDF document text
    • http://sbairs.com/datas/files/putolelegi.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1615842cb18e1a---34937107291.pdfIn PDF document text
    • http://worldcar.jp/userfiles/files/2583195514.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16103099adf54f---kuzemimixisoviragituxugaf.pdfIn PDF document text
    • http://beauty214.com/uploads//files/202108110543218379.pdfIn PDF document text
    • https://dolphinsolutions.net/ckfinder/userfiles/files/vozapamat.pdfIn PDF document text
    • http://lignumweb.com/site/webroot/uploads/files/43627236347.pdfIn PDF document text
    • http://asia-test.informacittadino.net/media/files/vezun.pdfIn PDF document text
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/8c551bc8b2829020579d5cc8cdc24308/lewugibebenexuwupilo.pdfIn PDF document text
    • http://17njl.com/userfiles/files/somomus.pdfIn PDF document text
    • https://inflexi.com/kcfinder/upload/files/17675239169.pdfIn PDF document text
    • http://mebel-moscow.com/content/xuploadimages/file/betoxevemujogovopimig.pdfIn PDF document text
    • http://gostinica-domodedovo.ru/files/mefivi.pdfIn PDF document text
    • http://alzinda.fr/ckeditor/kcfinder/upload/files/4739568617.pdfIn PDF document text
    • https://remont-bez-zabot.ru/files/file/luvilaxavudufetegamim.pdfIn PDF document text
    • https://groupekheidri.com/ckfinder/userfiles/files/podovurivodagudarirosit.pdfIn PDF document text
    • https://ltssinternational.com/res/wysiwyg/file/69542362812.pdfIn PDF document text
    • https://lawweb.info/mycms/admin/userfiles/file/76131227682.pdfIn PDF document text
    • http://ms-krmelin.cz/app/webroot/files/files/55599514652.pdfIn PDF document text
    • http://vhs1962.com/clients/b/b9/b967f936f519796c2a696a6ed1da67f9/File/tolorimakogumevajuromumo.pdfIn PDF document text
    • http://klimagra.pl/images/wysiwyg_img/file/66603004052.pdfIn PDF document text
    • http://gps-tw.com/CKEdit/upload/files/75983681673.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619da95cc485e---1775500943.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 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_off0003a8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A8AE 17116 bytes
SHA-256: 107cd483b7e093026c7330e6380405f0b67f7b17219cb598e20adf8a1e8a9113
font_01_sfnt_off0003d568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D568 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003ec88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EC88 10740 bytes
SHA-256: cd0571ef2a0255099b0dec826d5f8f002b2985c7eeafba65515a6a1d58612510