Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6e0a37da242f090…

MALICIOUS

PDF

285.6 KB Created: 2022-03-10 02:51:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-16
MD5: f0dd4263e21d68c3d0e2f200e651dab9 SHA-1: e962725ad72e84212bcf8f58324d3323daedb3c2 SHA-256: b6e0a37da242f090f86dff8b0e76afa3a0fd8efabe821b7df9597b71465bb5a3
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7234

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 http://oreoltour.ru/sites/default/files/file/75683676980.pdf In PDF document text
    • https://cgb-echafaudage.fr/upload/files/vexobedelomixepasopi.pdfIn PDF document text
    • http://www.elstar.ru/uploads/files/dumufevejonejapapisiwi.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16206f09c542df---89793802142.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621e6d17a84b8---pazav.pdfIn PDF document text
    • https://n-zvuk.ru/upload/file/kuwimelawojib.pdfIn PDF document text
    • https://krantiservice.com/ckfinder/userfiles/files/feweditewoso.pdfIn PDF document text
    • https://brahmagnanam.org/fck_uploads/file/poxubek.pdfIn PDF document text
    • http://datavincity.com/uploads/ckfinder/files/11888907210.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa6f7f60593---lavamafewagege.pdfIn PDF document text
    • http://influences-vegetales.eu/assets/Image/files/53966655305.pdfIn PDF document text
    • http://www.acs-pack.fr/kcfinder/upload/files/38233721121.pdfIn PDF document text
    • http://cmorshomecareassociates.org/uploaded_files/userfiles/files/9989608267.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/15635331754.pdfIn PDF document text
    • https://vida.posilatko.cz/files/wswg/file/88462141043.pdfIn PDF document text
    • http://auto-berles.oldalunk.hu/userimages/files/80496105142.pdfIn PDF document text
    • http://denetimmusavirlik.com/userfiles/file/17887786129.pdfIn PDF document text
    • https://www.ibbfvhn.org/recursos/kcfinder/upload/files/jezebofevoxada.pdfIn PDF document text
    • http://el-master.ru/userfiles/file/31762806640.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1620301f30f469---rugeruxijovikarasut.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/fegikafiv.pdfIn PDF document text
    • http://av72-reklama.ru/userfiles/file/1645545603b4c06f3a5caffab2c078.pdfIn PDF document text
    • https://hamzakocakoglu.com/userfiles/file/lofigekomubitizit.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=image+formed+by+concave+mirror+tablePDF 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_off00040978.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00040978.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00040978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40978 17720 bytes
SHA-256: d5e5ff71b76165d1ba59fb34a999f2242c74a8d017624ce8c4c471df7e9f5ff5
font_01_sfnt_off00043752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43752 10920 bytes
SHA-256: ab7daea715dda58f89ac3d7855b4c85eed822eb097e85060ee04f695261c02ec
font_02_sfnt_off00045066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45066 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9