Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8bfd071bd6c2298…

MALICIOUS

PDF

225.0 KB Created: 2022-02-11 18:04:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-06
MD5: 7ee38552274ad2ab9f515185cf6af42f SHA-1: e452ae43ff9caf62d03a46b72b9d943fd36ad61a SHA-256: a8bfd071bd6c2298d05696ad72cb3c10154efcae741fd62673b02170543b8f7b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8390

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://loheb.co.za/XSRYdR1H?utm_term=forecast+sheet+in+excel+2016+for+mac PDF link annotation
    • http://talk200.com/admin/admin/uploadfiles/file/dezutowasoja.pdfIn PDF document text
    • https://iskoruma.com/upload/ckfinder/files/widurigolusapewinubaso.pdfIn PDF document text
    • https://ru-tech.interspeedia.com/userfiles/file/51054328801.pdfIn PDF document text
    • http://dreamsurgeryen.net/ckupload/files/pofave.pdfIn PDF document text
    • http://smartvoicecom.com/userfiles/18527056335.pdfIn PDF document text
    • https://dtcm.meetingmindsexperts.com/multimedia/userfiles/file/14900083058.pdfIn PDF document text
    • https://sieseam.org/userfiles/files/4171041063.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e92c1248dc6---54772386051.pdfIn PDF document text
    • http://www.verneteco.com/ckfinder/userfiles/files/36034046855.pdfIn PDF document text
    • http://bean2beenefamilytree.com/clients/60578/File/6946683653.pdfIn PDF document text
    • http://timebymtm.com/upload/files/86079377711.pdfIn PDF document text
    • http://www.scea.edu.mn/ckfinder/userfiles/files/dagubatagekawu.pdfIn PDF document text
    • https://dongcohonda.com/userfiles/file/87972787324.pdfIn PDF document text
    • https://enilubricant.hoakhanh.vn/uploads/image/files/33193160832.pdfIn PDF document text
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1617652ea912b9---revugaligalex.pdfIn PDF document text
    • https://vinacoma3.vn/userfiles/file/14323253829.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/161ccb0ddbc137---luvamosakaxepefa.pdfIn PDF document text
    • http://artin-intranet.com/ckupload/files/nolobuzufotoguf.pdfIn PDF document text
    • https://petandpuppies.com/userfiles/file/wevapebevubadate.pdfIn PDF document text
    • http://andreuma.madteam.net/ckfinder/userfiles/files/logorukijenawaso.pdfIn PDF document text
    • http://faurerom.com/userfiles/file/zojet.pdfIn PDF document text
    • http://villalapinetafavignana.it/userfiles/files/sepisavedezanusopepejoda.pdfIn PDF document text
    • http://digivideos.net/ckfinder/userfiles/files/84680691985.pdfIn PDF document text
    • http://urgentcarepb.com/userfiles/file/gapatugazadetuno.pdfIn PDF document text
    • https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/2t6ud1q4dibvbdf6mkfmpfs86a/pitigajorowutumuxiri.pdfIn PDF document text
    • https://volnynaklad.cz/data/file/56388117630.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_off00030e20.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00030e20.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00030e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E20 11140 bytes
SHA-256: 427aa4df2cdb9a08b994a3f3936fbeee82afaceafb4d12310fb23e4db6529bde
font_01_sfnt_off00032808.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32808 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00033f23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33F23 20608 bytes
SHA-256: f3750bf228cac93a675994e3163e6b39c99102c0dbe829175369f5391e4c3b2c