Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd73f5f4d92d96dd…

MALICIOUS

PDF

450.0 KB Created: 2022-03-22 15:38:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 16564411f1a2b3ecb793bcdf56b261d0 SHA-1: b91194c42d103572f59940646bfb0993c2f96d09 SHA-256: cd73f5f4d92d96dd711b59edcee4811e7e539428693e1f3db42593e595642d41
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4712

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://loheb.co.za/XSRYdR1H?utm_term=yugioh+jack+atlas+deck PDF link annotation
    • http://twfbs.com/ckfinder/userfiles/files/jizajuxikuku.pdfIn PDF document text
    • http://scuderieverdina.it/scuderia/userfiles/file/putegedulipusomukano.pdfIn PDF document text
    • https://noble-program.site/js/ckfinder/userfiles/files/zadetewoxos.pdfIn PDF document text
    • http://carrozzeriabosini.net/userfiles/files/66044610915.pdfIn PDF document text
    • http://i-tos.com/userData/board/file/venupivezezidoweforabida.pdfIn PDF document text
    • http://www.pavimentosyreformasferlu.es/ckfinder/userfiles/files/85049566466.pdfIn PDF document text
    • https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/162220079765f6---22180647581.pdfIn PDF document text
    • https://noitiethoc.com/userfiles/file/91597208638.pdfIn PDF document text
    • http://avanti.pl/userfiles/file/76574270692.pdfIn PDF document text
    • http://erex.hu/upload/file/kapogisise.pdfIn PDF document text
    • https://communicationscharlevoix.com/admin/kcfinder/upload/files/87645036109.pdfIn PDF document text
    • http://soeurs-scjboran.fr/soeurs/upload/files/lididapuzuzimojojigomopen.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621d83a02b11a---61093382207.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623330309d96c---lidivepufuzowipo.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16236c02ea64c1---xiraguvinebogesopofubadog.pdfIn PDF document text
    • https://pmayassam.in/assets/kcfinder/upload/files/81236327942.pdfIn PDF document text
    • http://ankamet.com/userfiles/file/wanabetekabujuwugolofebi.pdfIn PDF document text
    • http://laxycoffee.com/upload/files/83651440531.pdfIn PDF document text
    • https://www.studioline.ie/ckfinder/userfiles/files/xolozovebasujo.pdfIn PDF document text
    • https://antonyfashion.sk/_upload/files/sawelile.pdfIn PDF document text
    • https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/5g8sirq2b9tlckbj9qh5e00s64/samajusola.pdfIn PDF document text
    • http://osmanbeyfidanligi.com/kcfinder/upload/files/takefoligevafim.pdfIn PDF document text
    • http://easy-maker.biz/upload/files/25741367620.pdfIn PDF document text
    • http://webbuilders.com/files/file/99926886850.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe0f3a65dd7---42614244792.pdfIn PDF document text
    • https://quangtriasianwindow.com/uploads/image/files/xewolegikavig.pdfIn PDF document text
    • https://empezo.xyz/js/ckfinder/userfiles/files/gugamutesokeri.pdfIn PDF document text
    • https://planbmedia.hu/files/42798778821.pdfIn PDF document text
    • http://0470caipu.com/data/upload/File/paposotesilirizi.pdfIn PDF document text
    • https://nyig.com/files/file/pigozulonazinabetuduwis.pdfIn PDF document text
    • https://ceb.lk/assets/js/kcfinder/upload/files/kirimomam.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_off0006973c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6973C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006ae57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE57 18880 bytes
SHA-256: 5c58dae3f36521bb5e0c56f8fa5fed84716a6114547490f671fa2b686db443cf
font_02_sfnt_off0006dfe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DFE9 10748 bytes
SHA-256: 60770252ae6e994efd7bb651c68a3396517b5cffb22d7f02949a7bf1abe65b8d