Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d61e5a463f6ea6…

MALICIOUS

PDF

401.7 KB Created: 2022-03-02 22:54:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 40c30c8debfc82c87e8c71432cfb2984 SHA-1: 37a97584c6a4080f7c417b220c6b5db073e4bfdb SHA-256: c7d61e5a463f6ea6c868a4220e983eb46e2329ba6fdb1de7a8fb8a6433a1ec25
191 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7848

Heuristics 7

  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=best+pdf+reader+with+annotation+for+android PDF link annotation
    • http://borsasetelsis.cat/admin/kcfinder/upload/files/13152221524.pdfIn PDF document text
    • https://jamisonfurnace.ca/userfiles/files/33943700960.pdfIn PDF document text
    • https://sluganarodu.org/userfiles/files/67104844272.pdfIn PDF document text
    • https://maggies-handmade.com/UserFiles/files/kumewasekusurosudarobebu.pdfIn PDF document text
    • http://program-pro.ru/userfiles/files/bonazupuvuvodoz.pdfIn PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16209dfa15cfe2---fafimobuvomipojugox.pdfIn PDF document text
    • https://web-dev.ethioapp.com/websites/lightyearsahead/code/userfiles/files/77021193902.pdfIn PDF document text
    • https://wonwon.taipei/photo/file/9394571320.pdfIn PDF document text
    • https://bluetact.com/locktactyuma/userfiles/file/17023542476.pdfIn PDF document text
    • http://medob.org/SITE/files/editor/file/jelef.pdfIn PDF document text
    • http://nelly-design.ru/upload/files/gapiwakarumu.pdfIn PDF document text
    • https://unitytradecapital.com/ckfinder/userfiles/files/11869267651.pdfIn PDF document text
    • http://ediljolli.com/userfiles/files/75058179443.pdfIn PDF document text
    • https://www.jnvhardoi.org/ckfinder/userfiles/files/22974296075.pdfIn PDF document text
    • http://thecpg.org/kcfinder/upload/files/95191462109.pdfIn PDF document text
    • https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/818687082a7a99f4e1a621df032dc0a4/81667876057.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/16218108d243aa---86732703387.pdfIn PDF document text
    • https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/161fd82a2a0d72---21499706419.pdfIn PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620ee348cf836---18906053356.pdfIn PDF document text
    • http://prasiddhakhabar.com/assets/kcfinder/upload/files/remijopijifibafepozebizax.pdfIn PDF document text
    • https://bursakaynak.com/userfiles/file/pemidan.pdfIn PDF document text
    • http://pollibox.com/assets/uploads/files/xafoworiwuf.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620572e0e8897---83423398628.pdfIn PDF document text
    • https://www.cvr2021.scrs.in/kcfinder/upload/files/kowabuvejegiwaxaporanul.pdfIn PDF document text
    • https://schneider-rozetki.su/kcfinder/upload/files/49762522439.pdfIn PDF document text
    • http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16200043717198---43655644679.pdfIn PDF document text
    • http://scoutpate.de/userfiles/file/vavuzit.pdfIn PDF document text
    • http://patp1ryb.ru/media/file/suxinemujafaf.pdfIn PDF document text
    • https://lalicorne-hotel.com/userfiles/file/femuledodeja.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_off0005d6d8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005d6d8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005d6d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D6D8 18016 bytes
SHA-256: 132782096b686c55044db6a770c5fdf6b86e7c72d379d7f84dfb893069cb80ff
font_01_sfnt_off000605fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605FD 10688 bytes
SHA-256: 4455f8c59bc8e8ba582518fedb3c7aa3c2e0ac9faac3cbb8ec23796d9df0ffe2
font_02_sfnt_off00061e8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E8D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9