Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5d3786e9f00d132…

MALICIOUS

PDF

389.3 KB Created: 2022-02-01 03:52:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-06
MD5: dd2c1aba144f65903be5c70854cd0c1c SHA-1: cd018b407151e0d10ad32a4e28c62fa39a61ccdc SHA-256: b5d3786e9f00d132ae71c4598e79c9b1e7e2ca98fac61fc02858132cdd760994
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6037

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://asesorgubernamental.com/images/file/wulipoz.pdf In PDF document text
    • http://nsdadventist.org/FCKData/file/movewo.pdfIn PDF document text
    • http://www.lahealthmarketplace.com/siteuploads/editorimg/file/58757324575.pdfIn PDF document text
    • http://pc75.net/upfiles/file/1636329266.pdfIn PDF document text
    • http://www.satunatc.ac.th/ckfinder/userfiles/files/pevelaf.pdfIn PDF document text
    • http://dogable.de/userfiles/file/jozuguxevuv.pdfIn PDF document text
    • http://www.keizerco.nl/userFiles/file/76463223855.pdfIn PDF document text
    • https://mk-pamyat.kz/uploads/files/51541320097.pdfIn PDF document text
    • https://kujainspectors.com/candyticket/uploads/page_images/files/38353153649.pdfIn PDF document text
    • http://1careglobal.com/upload/files/23148688711.pdfIn PDF document text
    • https://gyogytorna-vac.hu/admin/kcfinder/upload/files/xatodirutufizu.pdfIn PDF document text
    • http://ecohost.ru/pics/images/file/80859889061.pdfIn PDF document text
    • http://unewstoday.com/task/userimages/file/xumajukudupavaxufi.pdfIn PDF document text
    • https://seedcambodia.org/htdocs/cljr/data/files/pezovedipope.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16170d017bfe70---gojuxijivar.pdfIn PDF document text
    • http://rilta.net/userfiles/files/naveladugakemijiropolaga.pdfIn PDF document text
    • https://cafepiolho.com/uploads/assets/jadazemapodovu.pdfIn PDF document text
    • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1619ff9fc9d3ac---77132707915.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/161a398d7e55cd---61422859674.pdfIn PDF document text
    • http://decorstore.eu/upload/file/47329016407.pdfIn PDF document text
    • http://spartaksedlec.cz/spartaksedlec/userfiles/file/8358752299.pdfIn PDF document text
    • http://saoz.sk/assets/kcfinder/upload/files/67817835217.pdfIn PDF document text
    • http://rococosofa.com/files/files/74594134415.pdfIn PDF document text
    • http://gizmakina.com/depo/sayfaresim/file/34507477739.pdfIn PDF document text
    • http://bumsnab.ru/uploads/files/jeleperimu.pdfIn PDF document text
    • http://hanker.ru/web/img/files/vagetidebojobatadit.pdfIn PDF document text
    • http://consonniarredamenti.it/kcfinder/upload/files/wenakowababemuzaz.pdfIn PDF document text
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/bf327a69214407879a05d8a9fcbab197/ridisalegixomudu.pdfIn PDF document text
    • https://szemere-iskola.hu/images/files/42453134511.pdfIn PDF document text
    • https://www.bevillelecomte.com/ckfinder/userfiles/files/wupijimisipetula.pdfIn PDF document text
    • http://gizmakina.com/depo/sayfaresim/file/7512939186.pdfIn PDF document text
    • https://filmari-arad.ro/files/file/85569810772.pdfIn PDF document text
    • http://bjyhyy.cn/filespath/files/20211201002021.pdfIn PDF document text
    • http://www.rua.edu.kh/ad_library/tinymce/kcfinder/upload/files/tezukenuwemopu.pdfIn PDF document text
    • https://kaskad-74.ru/images/uploads/rebidewagivade.pdfIn PDF document text
    • https://www.idd.no/ckfinder/userfiles/files/kevurigor.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=free+email+signature+template+psdPDF 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_off0005a95b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005a95b.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a95b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A95B 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0005bffa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BFFA 16984 bytes
SHA-256: 14a6904ae61b1efaaf0ef8f668249b5abd1a1de199d40dbff93007a10fec0871
font_02_sfnt_off0005ec8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC8A 10692 bytes
SHA-256: 67dcb7c52c4cd932d2a3f657d12980e698aeba2644949b70a0d7cfd392841638