Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd73a0c9055539df…

MALICIOUS

PDF

208.4 KB Created: 2022-03-30 18:07:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: e82d0028c388efe3b62d75e36a02303c SHA-1: c09e9ee7f64381093cbb87273d5b84215ff70b49 SHA-256: cd73a0c9055539df54e515e4582d105cf946f6ae5e66962994c480864a1a282a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8076

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://norin.co.za/XSRYdR1H?utm_term=2k19+shot+meter PDF link annotation
    • https://studybrilliant.online/app/webroot/img/userfiles/file/xejobadonarizadakepuriru.pdfIn PDF document text
    • http://missteenqueenuk.com/userfiles/file/11265064250.pdfIn PDF document text
    • https://sealand-pptc.com/userfiles/file/zejagemuwunulomulonaboluw.pdfIn PDF document text
    • http://studiopignotti.it/userfiles/files/limufogadomukoteb.pdfIn PDF document text
    • https://3territoires.kopro.fr/userfiles/file/14809472844.pdfIn PDF document text
    • http://aallergy.friend-match.com/upload/files/19205893168.pdfIn PDF document text
    • https://mereduje.weebly.com/uploads/1/3/4/7/134751500/1272033.pdfIn PDF document text
    • https://photojet.bg/userfiles/file/zozalafalubutorux.pdfIn PDF document text
    • http://dimensioninteractive.com/WYSIWYGImage/file/13248043660.pdfIn PDF document text
    • https://jinebirusaxigel.weebly.com/uploads/1/3/5/3/135309673/tutiduzunojemos.pdfIn PDF document text
    • http://www.rpv-drachten.nl/files/file/9208353302.pdfIn PDF document text
    • https://wudegilunukoga.weebly.com/uploads/1/3/1/3/131379548/e8c2eddd2.pdfIn PDF document text
    • https://wininivawad.weebly.com/uploads/1/3/1/4/131483201/rezif.pdfIn PDF document text
    • https://avangardsb42.ru/upload/files/pifubosivomidogam.pdfIn PDF document text
    • https://degunosusoteri.weebly.com/uploads/1/3/1/4/131453230/3dc2e2ca15e479.pdfIn PDF document text
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/4eed8044615e4bf2faed31fd04f41e5c/funez.pdfIn PDF document text
    • http://kirilmazbardak.com/userfiles/file/70375434780.pdfIn PDF document text
    • http://antonio-pelella.eu/userfiles/files/63716265450.pdfIn PDF document text
    • https://degitetebumike.weebly.com/uploads/1/3/1/8/131857056/9959f703.pdfIn PDF document text
    • http://szhlfz.net/upload/zuran.pdfIn PDF document text
    • https://pedudevapo.weebly.com/uploads/1/3/4/7/134719514/puwod-geduf-zesuxugorati-timotigarage.pdfIn PDF document text
    • http://kzlo.pl/fotki/fotki/file/62703059456.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/162171477866ee---nanutunagofakala.pdfIn PDF document text
    • https://acv-verdun.fr/kcfinder/upload/files/35717810521.pdfIn PDF document text
    • http://zhihepvb.com/upload/ckimg/files/202203151918468376.pdfIn PDF document text
    • http://win-sonic.com/ck_imgs/files/soxosugetatoladafenosexa.pdfIn PDF document text
    • http://plncse.hu/php_data/file/64786120151.pdfIn PDF document text
    • https://woduberorakemam.weebly.com/uploads/1/3/4/6/134667752/e38e288fc22.pdfIn PDF document text
    • https://radekslodkiewicz.pl/files/file/lonofifetikizifune.pdfIn PDF document text
    • https://e2imgu.ratnatelenet.com/UserFiles/file/penetudebupafepixufakar.pdfIn PDF document text
    • https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/44172dd2125d85b0470b0764dfd42b0e/mavinijomiv.pdfIn PDF document text
    • http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1622f019de0a15---piriforuzuzivebaxobevinag.pdfIn PDF document text
    • https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/f2c3cb10a360ef.pdfIn PDF document text
    • http://shangrilayunnan.com/ckfinder/userfiles/files/62374793517.pdfIn PDF document text
    • http://soskuwait.com/outscapes/admin/ckeditor/uploads/ck/files/96910520725.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_off0002cf39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF39 10304 bytes
SHA-256: 7fd86c5e103a872e936805cc12078e87f98cb76bb6f37326faa2f00665f91514
font_01_sfnt_off0002e693.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E693 20304 bytes
SHA-256: 18dea6036836fee344087aa491b6f0cc5784bc868e5802620898147aa0c49630
font_02_sfnt_off00031b96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31B96 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9