Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6ef4fa80f4ae435…

MALICIOUS

PDF

474.3 KB Created: 2022-03-16 22:52:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-17
MD5: afb63e36dec0ef925787e54b93e4dbce SHA-1: 93118252aa218a29f6ecd7854e37d751759b1ae4 SHA-256: b6ef4fa80f4ae435ff9c8193f10600b6ffc5acc25ffa44fca2f1f88bebeba7fe
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4372

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://mifuj.co.za/XSRYdR1H?utm_term=scary+halloween+eyes+template PDF link annotation
    • http://retrievers.su/ckfinder/userfiles/files/wawexazoguxexok.pdfIn PDF document text
    • http://aviatechinform.ru/sadm_files/jegukuxazilepaviwokobu.pdfIn PDF document text
    • http://parkingparts.com/Upfiles/file/satigezabixovuditolu.pdfIn PDF document text
    • http://ros-audit.com/i/up/file/10041464447.pdfIn PDF document text
    • http://veraschwemmle.de/fckdata/file/12399158871.pdfIn PDF document text
    • https://www.ojchamber.com/ckfinder/userfiles/files/tefuvigaronewubid.pdfIn PDF document text
    • http://medicaldistri.com/ckfinder_files/files/puledezazomafuzuzanimirib.pdfIn PDF document text
    • http://olivetheater.com/userData/board/file/nebufuwevenuvosivo.pdfIn PDF document text
    • http://beiwendq.com/data/attachment/file/58021497504.pdfIn PDF document text
    • http://tat.tatagrohimservis.ru/files/11609620275.pdfIn PDF document text
    • https://antiquites-opio.com/kcfinder/upload/files/mosap.pdfIn PDF document text
    • https://verdadeon.com.br/kcfinder/upload/files/matimun.pdfIn PDF document text
    • https://www.rapn.ru/ckfinder/userfiles/files/10688333195.pdfIn PDF document text
    • http://xn--80aamwn.xn--p1ai/userfiles/file/fuvuxisafavulijunivo.pdfIn PDF document text
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/162073dde2e870---pitop.pdfIn PDF document text
    • http://krattenreiniging.nl/media-upload/files/difipami.pdfIn PDF document text
    • http://m3hotels.com/userfiles/file/nefuxazekapifabamudewerat.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1622e59c248906---81641752007.pdfIn PDF document text
    • http://jurabos.nl/include/editor/file/futakabazolopakopo.pdfIn PDF document text
    • https://suavitinhtannha.net/upload/files/65157716781.pdfIn PDF document text
    • http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1621847a3ce4a8---39717137305.pdfIn PDF document text
    • https://pensiuneaselina.ro/userfiles/file/85813332632.pdfIn PDF document text
    • https://cmsmda.neotebet.de/uploads/all/70536368605.pdfIn PDF document text
    • http://puebloexec.com/userfiles/file/81439564374.pdfIn PDF document text
    • http://program-pro.ru/userfiles/files/31424619610.pdfIn PDF document text
    • http://blpest.com/UserFiles/file/zinurimazub.pdfIn PDF document text
    • https://relaxbotanika.cz/ckfinder/userfiles/files/99465897888.pdfIn PDF document text
    • http://everestsherpatravel.com/demo/public/ckeditor/kcfinder/upload/files/bajopesalegepubisug.pdfIn PDF document text
    • https://bc2000.order-pro.com/ckfinder/userfiles/files/babutivejoxixi.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_off0006f912.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0006f912.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0006f912.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F912 10820 bytes
SHA-256: 63b1444a9e69e1feecd8fb59d368d34104a1ec47af9a9c39f31c876701254dd9
font_01_sfnt_off000711f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x711F8 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00072913.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72913 18576 bytes
SHA-256: 848447583f08dd057722510bcfea7bec39d406ba2d690f914b395a74a3da9d0f