Malicious PDF — malware analysis report

Static analysis result for SHA-256 78218e449510e4d9…

MALICIOUS

PDF

423.7 KB Created: 2022-02-24 08:17:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 3b18f5ce125e1199afafe9644851092e SHA-1: 5fc78c4120cd02df142a9cb5cac77f2ecfc71929 SHA-256: 78218e449510e4d926d1e19eba048f03017829a0986ea9460f6f45963593dc5b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5156

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://lazav.co.za/XSRYdR1H?utm_term=adjectives+worksheet+pdf+grade+8 PDF link annotation
    • https://www.pianoeg.de/admin/ckeditor/kcfinder/upload/files/rutixipenazuvurusuke.pdfIn PDF document text
    • http://gotween.com/userfiles/file///gubol.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1610afd5a135a9---86712884995.pdfIn PDF document text
    • https://texasbordervolunteers.org/userfiles/file/jaboranuvamep.pdfIn PDF document text
    • http://apvn.info/userfiles/file/lemokefurizofasagulo.pdfIn PDF document text
    • http://xaydunghoangthanh.com/img_duhoc/files/buxotedinimefu.pdfIn PDF document text
    • https://recapress.com/ckfinder/userfiles/files/74093763543.pdfIn PDF document text
    • http://maxgear.cz/webpagebuilder/ckfinder/userfiles/files/daxugikurokuba.pdfIn PDF document text
    • https://1000fdep.talenzsoftware.fr/upload/files/76892077044.pdfIn PDF document text
    • http://secretinvitation.net/images/files/45867101797.pdfIn PDF document text
    • http://ipmarketing.net/FCKeditor/editor/filemanager/connectors/userfiles/file/kuletagivujowoforituvados.pdfIn PDF document text
    • http://afgesproken.nl/kcfinder/upload/files/memutinemarafidona.pdfIn PDF document text
    • http://www.childofafrica.org/media/userfiles/file/50417302924.pdfIn PDF document text
    • https://suma.ca/upload/editor/file/57675865650.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/c74b0304e6b8497016dab0d5cafac897/fimefakak.pdfIn PDF document text
    • http://solarhomepage.ch/fckeditor/editor/images/file/56309730083.pdfIn PDF document text
    • https://t2sc.me/userfiles/97898208443.pdfIn PDF document text
    • https://uncme.org.br/Gerenciador/kcfinder/upload/files/futukuk.pdfIn PDF document text
    • http://irinaburmistrova.ru/files/wuwubisorejebike.pdfIn PDF document text
    • https://smilewax.tw/uploads/files/202202110102197643.pdfIn PDF document text
    • http://mictrogiang.com/userfiles/files/24539592660.pdfIn PDF document text
    • http://candientushinko.com/images/file/ruzogek.pdfIn PDF document text
    • https://dejavuruse.com/userfiles/file/90016714407.pdfIn PDF document text
    • http://oks.urmon.uz/kcfinder/upload/files/fixuposubop.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/a19a73738bf8d35f3ca487d8ec6b51de/goxugizesewuta.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_off00062e11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E11 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00064531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64531 11312 bytes
SHA-256: b16b05b934262b0009578d71ac403dae75316b2b1bd6adc51a55a07bc101c8da
font_02_sfnt_off00065fca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65FCA 18244 bytes
SHA-256: 84b3c95f8bf649e4f95f0452e5fc75c709b60ec8367f773925f74c2cfd685cb8