Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bca778df4a1150b…

MALICIOUS

PDF

348.4 KB Created: 2022-02-12 01:11:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: 551faa4fc0e41d001fc9343edf3ecec8 SHA-1: cdb837aa8a009812ee1c171dcf450e287b4fde33 SHA-256: 3bca778df4a1150bc439daa471a4a95b478de050b7f30cd71fc866241fd75c9f
226 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6782

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
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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 http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ef5cdf16f5---75119549782.pdf In PDF document text
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/fa06e93308002f1c0ee70ddfd06cab3c/tajipixapudugelugunava.pdfIn PDF document text
    • http://fueandhair.com/userfiles/files/tugilitapavutatumu.pdfIn PDF document text
    • http://zamdq.com/filespath/files/20211225184355.pdfIn PDF document text
    • https://campfun.myhost888.com/upload/ckeditor/files/wipexipepusikipika.pdfIn PDF document text
    • http://blackshirts1961.com/clients/7/71/7137ee3fbd99c17d296746b31d66a47b/File/28403320319.pdfIn PDF document text
    • https://franchiseharbor.com/files/files/86990205795.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/lbuq5e7oacvmd1vaui1t98vf14/76704451311.pdfIn PDF document text
    • http://valifyrepapillon.com/clients/6/68/68e1c6a84db99a04c21676ff826d6e37/File/58090076787.pdfIn PDF document text
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/ecf101ad9c132d5459cd90d89e1106d6/tupulogamebidisivufes.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f494a57066f---34068124646.pdfIn PDF document text
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160e034add300a---roretusapexut.pdfIn PDF document text
    • http://tractortools.cz/ckfinder/userfiles/files/86832171160.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/96899076238.pdfIn PDF document text
    • http://sergeisurzhin.ru/ckfinder/userfiles/files/52310430734.pdfIn PDF document text
    • https://protectname.xyz/whoisprivacy/userfiles/files/mumularelopazugasojen.pdfIn PDF document text
    • https://the-was.org/kcfinder/upload/files/xefolew.pdfIn PDF document text
    • https://balaji-technology.com/userfiles/file/vemupafigomeja.pdfIn PDF document text
    • http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/161c400ff114c8---zelolanimadavo.pdfIn PDF document text
    • https://thegmsbihta.in/userfiles/file/funeziruguzujakur.pdfIn PDF document text
    • http://schuetzenfest-hemeringen.de/ablage/userfiles/files/73073793927.pdfIn PDF document text
    • https://www.rapn.ru/ckfinder/userfiles/files/jopizogenekeluzer.pdfIn PDF document text
    • http://altamedia.hu/files/file/penekafez.pdfIn PDF document text
    • http://rcot.by/pics/files/82583500849.pdfIn PDF document text
    • https://hkparkkonutlari.com/image/files/resoxavogutudolalomig.pdfIn PDF document text
    • https://alaskaproauto.net/nbloom/fckuploads/file/gatujululanof.pdfIn PDF document text
    • http://lidaoxc.com/upload/files/wofexejezolodovirapurevu.pdfIn PDF document text
    • https://hilanguage-com-tw.triangle-design.com/files/65085751138.pdfIn PDF document text
    • https://pensiuneavalentina.traditionalart.ro/app/webroot/file/setanolizafufibelejovap.pdfIn PDF document text
    • http://dvg.asia/ckfinder/uploadfiles/files/favukolomobotojoxosibame.pdfIn PDF document text
    • http://autoscuolecasetta.it/userfiles/files/nuvomixuxeremifurasez.pdfIn PDF document text
    • http://mawratanews.com/armedia/uploads/files/96481141096.pdfIn PDF document text
    • http://seasonsblinds.com/uploads/ckfinder/userfiles/files/gexined.pdfIn PDF document text
    • https://aiwatopup.com/ckfinder/userfiles/files/60063404759.pdfIn PDF document text
    • https://lovig.co.za/XSRYdR1H?utm_term=facebook+video+audio+onlinePDF link annotation
    • 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_off0004fc39.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004fc39.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004fc39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FC39 10372 bytes
SHA-256: 860223fe966fa730cd9b93678c6561c5bd350b7f86f1ff674718ffb4e20b729f
font_01_sfnt_off000513bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x513BF 21060 bytes
SHA-256: a00137187b526df104cbbdefdb1fbc6a34dc201682f9018c5663c7b8b4b9108c
font_02_sfnt_off00054afb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54AFB 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9