Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed351a4c35a4dced…

MALICIOUS

PDF

236.7 KB Created: 2022-02-07 09:08:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: 1b174278cd278c4ac7b3aaa994785cc2 SHA-1: 8b7a9f1115d42ea2602664a8561d289a6d1b82fe SHA-256: ed351a4c35a4dced9d500fcaa63db0b305717264867431ecbe06d5d6df2c556b
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7243

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.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161f7af7b39fcf---30110097927.pdf In PDF document text
    • https://www.afsti.org/admin/kcfinder/upload/files/fiwejepeporala.pdfIn PDF document text
    • https://digireg.it/upload/pupalabosaxamekima.pdfIn PDF document text
    • https://ebal.ro/app/webroot/files/userfiles/files/35640211013.pdfIn PDF document text
    • https://bohemiamaestro.com/webpagebuilder/ckfinder/userfiles/files/7491322928.pdfIn PDF document text
    • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/3e86790ed6ed78090de25d315709298a/fufimebunowo.pdfIn PDF document text
    • https://ludifrance.fr/userfiles/file/befarivuwolu.pdfIn PDF document text
    • https://aluvioneschicamocha.sinecsas.com/ckfinder/userfiles/files/pekijewaz.pdfIn PDF document text
    • https://sabagdasarov.ru/upload/file/ranaxibuta.pdfIn PDF document text
    • https://viessmannboilers.ca/fck_upload/file/vuzolupemebe.pdfIn PDF document text
    • http://rassadaspb.com/new/files/file/fowaxobovajimu.pdfIn PDF document text
    • http://77owship.netsociality.com/upload/files/11990193338.pdfIn PDF document text
    • https://penmypoem.com/new/admin/uploadfiles/file/68554293878.pdfIn PDF document text
    • http://technestudio.eu/userfiles/files/serekevumigibofa.pdfIn PDF document text
    • https://glamweddingdesign.com/userfiles/file/gafojidojenamekemole.pdfIn PDF document text
    • http://medical-1669.com/userfiles/files/96005977594.pdfIn PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/37d363110609d7b977022ff252625745/25155045890.pdfIn PDF document text
    • http://xzass.org/ckfinder/userfiles/files/duvufifajonedopojonakobil.pdfIn PDF document text
    • https://tradingphrases.com/userfiles/files/16054450184.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3f043e02f3d02057163f934e3f83011a/lajeg.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/40754510063.pdfIn PDF document text
    • http://urs-certification.com/gais/image/file/44150451657.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161c68d701cd6b---xatixamatudegasapola.pdfIn PDF document text
    • http://ailin.kz/js/kcfinder/upload/files/pelipowesupotetedokulim.pdfIn PDF document text
    • https://houseofwax.eu/kcfinder/upload/files/17304671101.pdfIn PDF document text
    • http://smwiarus.pl/ckfinder/userfiles/files/52813883308.pdfIn PDF document text
    • https://umiyawoodworks.com/fckdb/userfiles/file/31863608546.pdfIn PDF document text
    • https://www.beltiar.by/css/assets/plugins/kcfinder/upload/files/lamamesidiwasugogo.pdfIn PDF document text
    • http://tecs4.com/intranet/ckfinder/userfiles/files/23956899344.pdfIn PDF document text
    • http://kingswaytyres.com/project/kingsway/uploads/file/40654220924.pdfIn PDF document text
    • https://sunuf.co.za/XSRYdR1H?utm_term=pulse+secure+vpn+client+linuxPDF link annotation
    • http://polipadel.com/userfiles/file/56718212340.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_off00034a0d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00034a0d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034a0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34A0D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00036128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36128 16404 bytes
SHA-256: 8950f6fa9239e2cf576f7110fd12ed4827b07b9e0b68db92105f0ab22fa0e8a4
font_02_sfnt_off00038bba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38BBA 10352 bytes
SHA-256: 78db8cc77fa5e374c20748abcddff15fa773af1ccc56df587b741084d1efe986