Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6d787a555cbb87…

MALICIOUS

PDF

339.1 KB Created: 2022-02-04 22:37:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-30
MD5: 90b28cb638d77ab70a72b167383bf19a SHA-1: 91ab66daddf119042e6f822489a33475ca2fa885 SHA-256: 8f6d787a555cbb872a527247dca1b686f71f09a787f9e6fc9ef2be7d0dcd940c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6817

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=axis+and+allies+online+free+no PDF link annotation
    • http://liavanhaeringen.nl/userfiles/files/bitudodorunetam.pdfIn PDF document text
    • https://www.ojchamber.com/ckfinder/userfiles/files/988963381.pdfIn PDF document text
    • http://maroba-zirndorf.de/file/wuxebonusazasamazeverut.pdfIn PDF document text
    • https://qfuse.it/images/uploaded_files/ckfinder/files/1639505194_895051638d.pdfIn PDF document text
    • http://hoteldanang.com/uploads/images/files/34614069048.pdfIn PDF document text
    • https://huaku3c.tw/uploads/files/202111262006363046.pdfIn PDF document text
    • https://digicpictures.com/downloads/90040513095.pdfIn PDF document text
    • http://fikszo-whc.com/userfiles/files/lewep.pdfIn PDF document text
    • http://affordableadobe.com/ckfinder/userfiles/files/ligudirifudilof.pdfIn PDF document text
    • http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/588eb6457a28e8f34a6f9c76f59ff38c/xikeputusaxudubadelukoteg.pdfIn PDF document text
    • https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/161c43889360c9---wanefapolurum.pdfIn PDF document text
    • https://shirbandifelt.com/userfiles/file/dufoxisotuvibono.pdfIn PDF document text
    • https://univerosg.com/ckfinder/userfiles/files/83165859759.pdfIn PDF document text
    • https://acethamessecurity.co.uk/wp-content/plugins/super-forms/uploads/php/files/3c590aafa9d320ad62bb3c203cd3ced9/22097983750.pdfIn PDF document text
    • http://nuovartea.eu/userfiles/files/84715548759.pdfIn PDF document text
    • http://sportsclinicwest.ie/media/contents/file/52223896054.pdfIn PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/hkovg0gkvpejs7i8vifpe9l2b0/fifutijiliwodekowipuj.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161894b5385329---21226012763.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/161f9e566f37f4---5853687477.pdfIn PDF document text
    • https://linlinline.biz/js/ckfinder/userfiles/files/317597846.pdfIn PDF document text
    • http://vaithun.net/upload/files/rixuludesilulo.pdfIn PDF document text
    • https://segurodegranizo.ar/noticias/fckeditor/file/99643530172.pdfIn PDF document text
    • https://bio86.net/userfiles/fichiers/45197826092.pdfIn PDF document text
    • http://rjbmachinery.com/d/files/miwofejaruzufenuxigu.pdfIn PDF document text
    • https://rajakeempat.com/contents/files/revajofutabagamawoverob.pdfIn PDF document text
    • https://i-chat.tw/js/ckfinder/userfiles/files/bateju.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130612097264---zabavufafedusulebex.pdfIn PDF document text
    • http://chhattisgarhsanskritboard.in/sharpinstitute/images/files/72507455325.pdfIn PDF document text
    • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/71e7e673cd9c6ed8e9f8b2b73d8d0f87/fabazufuwavulib.pdfIn PDF document text
    • http://wok4all.nl/newerac2c/userfiles/file/50437464834.pdfIn PDF document text
    • https://goodmix-psc.com/userfiles/files/61010183505.pdfIn PDF document text
    • http://urbanelect.com/userfiles/file/vilusidux.pdfIn PDF document text
    • http://www.easemyloan.in/assets/kcfinder/upload/files/potabixanusabepaw.pdfIn PDF document text
    • http://neoneofytou.com/ckfinder/userfiles/files/15494480728.pdfIn PDF document text
    • http://transchem-tech.com/Uploadfiles/files/tabukovabajinusus.pdfIn PDF document text
    • http://speed-r.com/js/upload/files/rugojaxizipiso.pdfIn PDF document text
    • http://isspskola.lv/userfiles/files/xexetivutejenujo.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1617cc68805df2---1561040319.pdfIn PDF document text
    • https://laval.gatr.ca/img/etablissements/files/siwiwojujaveve.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/298f5c7vepu47n5vcjqst9ms86/wukibemabexemizodabe.pdfIn PDF document text
    • http://dentistturkey.com/image/files/81636202772.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_off0004dfc7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004dfc7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004dfc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DFC7 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004f6e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F6E7 10332 bytes
SHA-256: 0d4f3d8a56730bf732be0f8e3b8af1cd5a86aa9eec4277fcad3b9dd4f5ed12f9
font_02_sfnt_off00050e4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E4C 17172 bytes
SHA-256: 956d9c0b47ac7878a740d58c4dc19e0d9d005ae22bbbc369cf7e7295466236d8