Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df481f12204a241…

MALICIOUS

PDF

348.8 KB Created: 2021-12-29 13:08:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 7340154adfe1b46aed0f0bc3ba4c8a41 SHA-1: 85e2336c510703cdb60893bc866a8951f1c29715 SHA-256: 6df481f12204a241a43bb469ad416f2387a307f4936aaa3bde9484b0d4637f86
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6763

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://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/l684998nvcqfcbo91acllb08pl/zugew.pdf In PDF document text
    • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161612257162f7---20346305403.pdfIn PDF document text
    • http://amghanoi.com/images/ckeditor/files/47023195646.pdfIn PDF document text
    • http://limfashions.com/assets/ckeditor/kcfinder/upload/files/zazufiponogenevo.pdfIn PDF document text
    • http://shopcloud.cloud/ckfinder/userfiles/files/bobaponasarewu.pdfIn PDF document text
    • http://napiarsaigh.com/images/gajed.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161407a603b37e---dakelasiwakixufuru.pdfIn PDF document text
    • https://bcbc3399.com/upload/files/sobinakilapopakofe.pdfIn PDF document text
    • https://miet.hu/kepek/lewirenelebabuzosarezal.pdfIn PDF document text
    • http://tolaniprojects.com/userfiles/file/rutezazusileloj.pdfIn PDF document text
    • http://25630638.kad.tw/kads/ckfinder/userfiles/files/18684051643.pdfIn PDF document text
    • http://revize-elektro.info/UserFiles/File/83825159158.pdfIn PDF document text
    • http://udokutscher.de/gfx/userfiles/files/nadupemofimesekigoperedub.pdfIn PDF document text
    • https://2b3la571ga-70p.com/contents/files/22725122753.pdfIn PDF document text
    • http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/161779624e00cf---19563712290.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/fe4ced154802f25db3915b4c543a4eab/befuderozuketaxikoxilal.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619499ec22ed3---31210630071.pdfIn PDF document text
    • http://mstreatmentadvances.com/userfiles/files/59166228564.pdfIn PDF document text
    • http://chi-kara.net/userfiles/file/zanajefu.pdfIn PDF document text
    • http://benthanhsgfarm.com/images/uploads/files/sotetezonosevobipesavuw.pdfIn PDF document text
    • http://splhardware.com/UploadFile/file/2021110913030173499.pdfIn PDF document text
    • http://opgzvh.hr/upload/file/91188312901.pdfIn PDF document text
    • https://kingwaterpure.com/ckfinder/userfiles/files/biribaxabirametako.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a9d9a881aae---nokivulesomategaduz.pdfIn PDF document text
    • http://sloplast.com/userfiles/files/84174826923.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1619184eedcde4---1248961014.pdfIn PDF document text
    • https://unicorn.mn/js/ckfinder/userfiles/files/tanebotidebi.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/RC0zOYPQW8A/uplcv?utm_term=amarasilpi+jakkanna+audio+songs+freePDF 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_off00050378.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00050378.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50378 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00051a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51A1C 11044 bytes
SHA-256: feefd91fcbe165a1ef4a2d872a84c8142569e35df393cd33cc2c5e5b2a386be9
font_02_sfnt_off00053379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53379 18792 bytes
SHA-256: e949f517847b62a0503152ff7251bccb05a05533f2d41c36bc5f91a27c304b6f