Malicious PDF — malware analysis report

Static analysis result for SHA-256 98ff05f5797af1b6…

MALICIOUS

PDF

303.6 KB Created: 2022-02-09 19:36:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-08
MD5: 48a0c460fdd8f671efde40ac68b54bbb SHA-1: 01b372b59236d847bf4c51719f7c2741bcc1c481 SHA-256: 98ff05f5797af1b67413fe9e4316b5d4d6270ec9a8939b58d752d252fe183272
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6797

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://cesvil.it/filesUploads/file/6249622019.pdf In PDF document text
    • https://paymentor.nl/uploads/file/1346680386.pdfIn PDF document text
    • https://shop-ecobati.com/medias/upload/files/xadokutofudebazovor.pdfIn PDF document text
    • http://acevina.com/webroot/img/files/kajofamujujiwoxase.pdfIn PDF document text
    • https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d2761be7ab1---pakupemaxubawetexozepim.pdfIn PDF document text
    • http://karikatura-kovarik.cz/files/file/fujosalibaxibukezosipi.pdfIn PDF document text
    • https://milosislandrooms.gr/userfiles/file/febesuxikosokirupatalise.pdfIn PDF document text
    • http://professionalcsali.hu/admin/ckeditor/kcfinder/upload/files/60708664029.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161efbc80ed787---kugefigawov.pdfIn PDF document text
    • http://milkexim.ru/imgeditor/file/zilefepiru.pdfIn PDF document text
    • https://latvanysport.hu/upload/files/wirit.pdfIn PDF document text
    • http://omgmediatank.com/userfiles/files/60763800556.pdfIn PDF document text
    • http://csc0731.com/userfiles/file/20210710082423_zc28g4.pdfIn PDF document text
    • http://contextuae.com/resimler/files/96537777507.pdfIn PDF document text
    • https://newsale.linyn.mobi/upload/ckeditor/pages/files/nivinoxilifojeril.pdfIn PDF document text
    • http://pokewaveanaheim.com/uploads/files/88034352645.pdfIn PDF document text
    • http://www.serge-valentin.net/ckfinder/userfiles/files/bevikekin.pdfIn PDF document text
    • http://chanakol.com/ckfinder/userfiles/files/nepegebagerarodo.pdfIn PDF document text
    • http://ergo-logo-bamberg.de/userfiles/file/75859509829.pdfIn PDF document text
    • https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16200d0c384f70---wozigirusubu.pdfIn PDF document text
    • http://busangh.com/attfile/fckimg/file///20211109143033_225981013.pdfIn PDF document text
    • http://wirtualnekorepetycje.com/Upload/file/timorudikatumo.pdfIn PDF document text
    • https://selispin.net/calisma2/files/uploads/mevotupu.pdfIn PDF document text
    • http://thementalhealthadvocates.org/files/userfiles/file/32798241990.pdfIn PDF document text
    • http://bjzjygj.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/pusosafixan.pdfIn PDF document text
    • http://heathrowairporttaxi.website/userfiles/file/ludibowuxadatujo.pdfIn PDF document text
    • http://toszegisuli.hu/userfiles/file/21287286974.pdfIn PDF document text
    • https://www.naturecare.com.au/kcfinder/upload/files/wajavamuwevakitad.pdfIn PDF document text
    • http://muacuoi.vn/Pictures/files/mixozawutobukutased.pdfIn PDF document text
    • http://spc1991.com/ckfinder/userfiles/files/murizate.pdfIn PDF document text
    • http://interroadholland.nl/userfiles/file/29851760701.pdfIn PDF document text
    • http://ngocphuocjsc.com/public/default/ckeditor/files/70880089703.pdfIn PDF document text
    • http://alessandrobelleseveterinario.eu/userfiles/files/rizomatasimedamike.pdfIn PDF document text
    • https://quatden.vn/webroot/img/files/89142386773.pdfIn PDF document text
    • http://johnmichaelharrisonlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/38465121228.pdfIn PDF document text
    • http://karat-dobremiasto.pl/userfiles/file/79070646563.pdfIn PDF document text
    • https://woodfur.in/userfiles/file/kenaxefogirisiserabevi.pdfIn PDF document text
    • http://totoumi.jp/upload/file/641597737.pdfIn PDF document text
    • https://ragaz.co.za/XSRYdR1H?utm_term=chakram+video+songs++3gpPDF 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_off00044ff6.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00044ff6.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00044ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44FF6 17196 bytes
SHA-256: 1cb925f3618fe8154f762c77315984df23bd57b46af1be7355155c24c29e7476
font_01_sfnt_off00047ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x47CE2 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00049402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49402 11056 bytes
SHA-256: 2e427b347ce2cec572574af226b0292b20231637ed39c511bfa55612ff5aefd7