Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e35e4b0b752e840…

MALICIOUS

PDF

244.3 KB Created: 2022-01-03 09:13:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 202c4b538f95ade10e329262815c6c9a SHA-1: a83be6d65a85c4584483ec0e7a61976da3e62576 SHA-256: 4e35e4b0b752e8405820fa8273e9ee70324035d252992de9d738ffd86449cf21
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8976

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://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161654490b094b---vamalazalod.pdf In PDF document text
    • http://advantagesport.org/kcfinder/upload/files/pupexavonalosod.pdfIn PDF document text
    • http://originalbau.hu/imagesfiles/31121609604.pdfIn PDF document text
    • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1619508ee6616f---94230716268.pdfIn PDF document text
    • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16195231be2374---78850741649.pdfIn PDF document text
    • https://suavitinhtannha.net/upload/files/tafarugetuwitijawuru.pdfIn PDF document text
    • http://oletrans.sk/editor_uploads/files/badeteteteremugisu.pdfIn PDF document text
    • https://deltarents.com/upload/ckfinder/files/52030268529.pdfIn PDF document text
    • http://getvisa.ru/images/File/59906455988.pdfIn PDF document text
    • https://ans5680.preneed91.com/upload/files/rufesipetazavisasutupapu.pdfIn PDF document text
    • https://infotechb2blite.com/bot/ckfinder/uf/files/bivakorizowuvurof.pdfIn PDF document text
    • https://webmanagement.exing.ro/images/file/zibibenawedinabijukowad.pdfIn PDF document text
    • http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/28334913449.pdfIn PDF document text
    • http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161ae250708453---viloxitubu.pdfIn PDF document text
    • http://www.juniorcollege.cl/ckfinder/userfiles/files/34193497060.pdfIn PDF document text
    • http://az-volnycas.cz/volnycas/fckphotos/file/59962852279.pdfIn PDF document text
    • http://yuha.be/_files/file/81005308293.pdfIn PDF document text
    • http://malovanesklomh.cz/images/file/xilabu.pdfIn PDF document text
    • http://ukwoodrecycling.com/userfiles/files/zewobuluxibape.pdfIn PDF document text
    • http://haki.vn/uploads/files/50275105161.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16134b6f43f240---xexuw.pdfIn PDF document text
    • https://sibois.eu/userfiles/file/damivobunolu.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/TxADE9PCSUw/uplcv?utm_term=google+sheets+script+loop+through+rangePDF 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00036447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36447 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00037aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37AEB 10792 bytes
SHA-256: b4340bd4dc759514e92a4e9dc9ca93e4e9a19dde05048ffc1e4cdb2232a0025e
font_02_sfnt_off000393c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x393C3 17968 bytes
SHA-256: 1c1b0e85ec6e562c020161030b44e5be56380a8812c259f6a053ba9a4f27a281