Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df4956afef855c4…

MALICIOUS

PDF

272.8 KB Created: 2022-02-03 06:44:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-18
MD5: 7ca7ef9d0f0536153ca6b2bf4495dedc SHA-1: 36a39ec9ce6c56bb240a846d785257637a1e7b78 SHA-256: 6df4956afef855c48a1b708c2136250ba65678beb423f29b5985d5314af2ba7b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7170

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://yubit.co.za/XSRYdR1H?utm_term=gopro+fusion+guide PDF link annotation
    • http://naturallabs.de/userfiles/file/28758988264.pdfIn PDF document text
    • http://brukbet.com/user_images/file/tureposoraligexubaxaj.pdfIn PDF document text
    • http://graficaeformazione.it/userfiles/file/65050238039.pdfIn PDF document text
    • http://rc-saty.cz/gais/image/file/94001337549.pdfIn PDF document text
    • https://akgoz.zemta.com/uploads/files/96768280495.pdfIn PDF document text
    • http://kibunajcc.com/ckfinder/userfiles/files/63718462121.pdfIn PDF document text
    • http://giraf-tour.com/kcfinder/upload/files/29477864234.pdfIn PDF document text
    • http://ferramentabelleggia.it/public/file/68817498149.pdfIn PDF document text
    • http://www.aportecnica.com/imagenes/editor/file/fokirelibumopot.pdfIn PDF document text
    • http://geasit.it/userfiles/files/17050346170.pdfIn PDF document text
    • http://nikolabartakova.cz/files/file/bapogikugizepab.pdfIn PDF document text
    • http://goodslib.com/userfiles/file/guwexad.pdfIn PDF document text
    • https://www.playitdirect.ca/ckfinder/uploadfiles/files/33193478079.pdfIn PDF document text
    • http://afghansolar.com/userfiles/file/buseganurejis.pdfIn PDF document text
    • http://www.finanzanlagen-honorarberatung.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e86d8a8ce34---lebawububixufiremi.pdfIn PDF document text
    • http://www.asap-recruitment.net/upload/file/bibugerexatuvegodekagosaf.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16137598841f46---wuweregagan.pdfIn PDF document text
    • http://tks-forever.com/upload/2021/07/08/file/33971901431.pdfIn PDF document text
    • http://thanhtamgia.com/ckeditor/kcfinder/upload/files/19445089972.pdfIn PDF document text
    • https://doublehaircenter.com/upload/ckfinder/files/jarufivaborusizukivigerol.pdfIn PDF document text
    • https://www.krenzle.sk/editors/ckeditor/plugins/kcfinder/upload/files/66767505949.pdfIn PDF document text
    • http://cesishotel.com/res/wysiwyg/file/masudalebetofaraze.pdfIn PDF document text
    • https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/31a6fa5349ee325534e257f2eb75081a/nupekuwajatoxogamaremit.pdfIn PDF document text
    • http://metrocars.london/survey/userfiles/files/safozejizudalawifadapap.pdfIn PDF document text
    • https://sme.bankai.lv/ckfinder/userfiles/files/sujeger.pdfIn PDF document text
    • http://boldogelet.hu/media/jadasexumafosadobu.pdfIn PDF document text
    • http://wjvanderheidedienstverlening.nl/uploads/file/libalufaloxibilo.pdfIn PDF document text
    • https://0a3exp.com/upfiles/editor/files/67454318875.pdfIn PDF document text
    • http://zwickerfoto.hu/_user/file/8924515745.pdfIn PDF document text
    • http://mtlebanon62.com/clients/5/5e/5ee551a8be14a26d7d76bc5e90dd1372/File/28790927585.pdfIn PDF document text
    • https://agri-mal.pl/userfiles/file/70292811881.pdfIn PDF document text
    • http://ivelinabozilova.com/userfiles/file/birorav.pdfIn PDF document text
    • http://bwemfjhjk.friend-match.com/upload/files/74248473374.pdfIn PDF document text
    • http://dkmmotor.com/files/userfiles/file/nunev.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_off0003d633.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003d633.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003d633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D633 17776 bytes
SHA-256: 45ffe4d22e4c043aa401658ddb6e1cf2b6d8b999f5baf7955a7673c155b42638
font_01_sfnt_off00040505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40505 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00041c25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41C25 10508 bytes
SHA-256: 257347034257e2a3f5910b670aae081cc5b8fbacd9ef415e779da2aa2833ad80