Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff2358ec527d0288…

MALICIOUS

PDF

268.1 KB Created: 2022-03-12 23:13:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-14
MD5: 1486087db03454ac3d203c0eb3780fb1 SHA-1: e2fcd3f7411d4d0a49d6177e9bf9dd0285d65501 SHA-256: ff2358ec527d02889ec18e17407567f4725d5618557c793cc988e55811c36398
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6316

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://cafij.co.za/XSRYdR1H?utm_term=simple+html5+template+one+page PDF link annotation
    • http://linyuepharm.com/upload/files/sivularedalozifo.pdfIn PDF document text
    • http://belcanto-evenements.com/media/files/nifidajopabamabimasa.pdfIn PDF document text
    • http://ez-surveying.com/htdocs/cljr/data/files/7678948345.pdfIn PDF document text
    • http://cadex-forensique.com/app/webroot/kcfinder/upload/files/lojak.pdfIn PDF document text
    • https://gad-elhak.com/userfiles/file/zikopenisojubopiwasori.pdfIn PDF document text
    • https://fanaf.com/article_ressources/file/43977398033.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/19fa26230c1d09ddb37491274af81589/xovukinajera.pdfIn PDF document text
    • http://intertravel.hu/_user/file/43253097554.pdfIn PDF document text
    • https://aiwcecckolkata.org/FCKeditor/file/gumak.pdfIn PDF document text
    • http://appartenvue.net/appart/upload/images/rigal.pdfIn PDF document text
    • http://dulichtantai.com/files/uploaded/files/14125570610.pdfIn PDF document text
    • https://baongochoa.com/upload/file/61374876255.pdfIn PDF document text
    • http://wwm-quanta.com/upload/files/79226704327.pdfIn PDF document text
    • http://iwebcambodia.com/admin/kcfinder/upload/files/60079514794.pdfIn PDF document text
    • http://goansausages.com/admin/ckeditor/kcfinder/upload/files/xururiwef.pdfIn PDF document text
    • http://share-world.tw/userfiles/file/61156729408.pdfIn PDF document text
    • http://myslizdrave.com/soubory/68045716834.pdfIn PDF document text
    • http://cu-hinothai.com/ckfinder/userfiles/files/24505212645.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/cjchm93civ3fu0hu7fonbr0ed1/83145497836.pdfIn PDF document text
    • http://vansuloi.com/uploads/userfiles/file/93341980537.pdfIn PDF document text
    • http://haai.org/upload/file/gipoz.pdfIn PDF document text
    • https://santchavarabed.in/ckfinder/userfiles/files/bifikuva.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/d2960c788a6171c143b6eea846a84c72/26376436178.pdfIn PDF document text
    • http://folhacer.com/cliente/conteudos/files/wepofudijizejufupu.pdfIn PDF document text
    • http://kdsonline.org/userfiles/file/pilufitakuvogisikami.pdfIn PDF document text
    • https://vietnam-pump.com/userfiles/file/20350265193.pdfIn PDF document text
    • http://martonfogtechnika.hu/admin/kcfinder/upload/files/pariperuwur.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161f8d78799196---dowepoxire.pdfIn PDF document text
    • http://limobebe.com/userfiles/files/56842979449.pdfIn PDF document text
    • http://www.binghan.my/userfiles/file/23072763597.pdfIn PDF document text
    • http://amcdach.ox.pl/userfiles/file/63690374417.pdfIn PDF document text
    • http://leviedelsignore.it/gallery/files/zowideru.pdfIn PDF document text
    • https://midlanddevelopers.com/backend/web/kcfinder/upload/files/52848056787.pdfIn PDF document text
    • http://nepallooms.com/imagenes/file/65968237530.pdfIn PDF document text
    • http://healhumanity.foundation/userfiles/file/18610537653.pdfIn PDF document text
    • http://labemweller.medianet-shop.de/userfiles/editor_files/file/vobimupiwunowij.pdfIn PDF document text
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/161fe815521984---9902974726.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_off0003bc77.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003bc77.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003bc77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BC77 20032 bytes
SHA-256: c842df0c4e9fd1045943b7df1888ad48c496f0235b1e8d87c9fe2e0568f5743b
font_01_sfnt_off0003f114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F114 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00040834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40834 10640 bytes
SHA-256: aad56156ebe676266abf3954b2a8bb1438a41b6867e59b9b26f6b7002fa02c27