Malicious PDF — malware analysis report

Static analysis result for SHA-256 4505f686db26c3fe…

MALICIOUS

PDF

238.6 KB Created: 2022-02-27 13:34:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 188f703a04d53e97a3f53926a1b84505 SHA-1: 4306c6676eabb44ab6f5d4a60e70f73d433dc2c9 SHA-256: 4505f686db26c3fed52ae0d96672217b071be1052467e77f9506ffb34af348ee
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7988

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://fecuq.co.za/XSRYdR1H?utm_term=simple+sql+tutorial+pdf PDF link annotation
    • http://dgjst.com/upfile/file/70756776472.pdfIn PDF document text
    • https://granitabrasive.hu/editor_up/vanajujutulutozekasukipo.pdfIn PDF document text
    • http://veedik.com/assets/admin/kcfinder/upload/files/mabixega.pdfIn PDF document text
    • http://www.ooodkx.ru/ckeditor/kcfinder/upload/files/puduxesukemefekutafuda.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161fda9589cdb9---2420765464.pdfIn PDF document text
    • https://lecachet.fr/docs/files/napudupikile.pdfIn PDF document text
    • https://centralnanaimo.gocascadia.com/images/cms/file/vuvobobiwaluferib.pdfIn PDF document text
    • https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/6acf61698d5a9ea1b6c96618bc95aa44/rulunomixuzanivivetuzu.pdfIn PDF document text
    • http://harposwebdesign.nl/app/webroot/files/userfiles/files/461479440.pdfIn PDF document text
    • https://www.osteopathe-montpellier-sud.fr/ckfinder/userfiles/files/lowaxajenosupi.pdfIn PDF document text
    • http://grupa-energia.pl/attachments/file/24926110417.pdfIn PDF document text
    • http://e-kva.ru/admin/ckfinder/userfiles/files/mabukiwusiwikoxexade.pdfIn PDF document text
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1619036f95cc5b---laburemavuduk.pdfIn PDF document text
    • http://thegioidahoacuong.com/uploads/image/files/diwalazisujiw.pdfIn PDF document text
    • https://unitytradecapital.com/ckfinder/userfiles/files/16574080900.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/22108dd7c58657ea6d7e8b5adb78a8dd/79238751960.pdfIn PDF document text
    • http://zjleiou.com/images/upload/File/59846467206.pdfIn PDF document text
    • http://office-tommy.com/images/file/82526035218.pdfIn PDF document text
    • http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161eb8c46c66c4---rapab.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/161b3faac684f9---42424695504.pdfIn PDF document text
    • http://ncfc.com.tr/ckfinder/userfiles/files/xixorujolafemazononedabi.pdfIn PDF document text
    • https://ms01bet.net/contents//files/35272308529.pdfIn PDF document text
    • https://qfse.co/images/uploaded_files/ckfinder/files/1625343737_7b34aa1219.pdfIn PDF document text
    • http://fotosvatba.net/userfiles/file/8626561815.pdfIn PDF document text
    • https://wiltech-hk.com/editor_upload/file/70190889147.pdfIn PDF document text
    • https://www.hosotte.com/ckfinder/userfiles/files/befokuvuze.pdfIn PDF document text
    • https://hospvetcentral.pt/site/upload/file/pobebedovetiwazodi.pdfIn PDF document text
    • https://www.trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/31475816714.pdfIn PDF document text
    • http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/161ee4bacd8de5---lavoluzurofepefuvikizi.pdfIn PDF document text
    • https://doanhnghiepvietnam.niengiamdoanhnghiep.vn/img_duhoc/files/39914568716.pdfIn PDF document text
    • http://emekyesiltepe.net/images_upload/files/luluwedafezapeturaj.pdfIn PDF document text
    • https://stonemasonscottage.com/upload/files/69871820174.pdfIn PDF document text
    • https://silverlabpupsforsale.com/userfiles/files/mitetu.pdfIn PDF document text
    • https://xuanhongkhang.com/upload/files/32934869720.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e560d10b681---fifupivabonuma.pdfIn PDF document text
    • https://promoform.coreform.it/uploads/file/56972105049.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_off00034efd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00034efd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034efd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34EFD 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00036618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36618 17076 bytes
SHA-256: 27cb511e0803e2d85d8ad7164c3bc72c5aa9a4329e144fa276037bacbbf8b181
font_02_sfnt_off0003925d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3925D 10876 bytes
SHA-256: 546bc07b5f90bfd16333efcb2490214dfc8f2a2029727ede2990a4c54c77a48a