Malicious PDF — malware analysis report

Static analysis result for SHA-256 29c57339f19fd6e5…

MALICIOUS

PDF

321.7 KB Created: 2022-04-01 23:24:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-18
MD5: 0ad71f476b0ec50b1b77cc1ce74fc68c SHA-1: 958766a7c244baffb015944cc48533ba31d4af00 SHA-256: 29c57339f19fd6e58933a682d762fbcd8bd2c109771a5888ac6a75effca32337
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7501

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://mitcostruttori.it/userfiles/files/51316695553.pdf In PDF document text
    • https://pelozaxuji.weebly.com/uploads/1/3/2/6/132680784/7185815.pdfIn PDF document text
    • http://labellebeaute.com.hk/ckfinder/userfiles/files/6454279735.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1623172d42e9d3---48063644369.pdfIn PDF document text
    • https://evpersoneli.net/ev-personeli/file/gebumekowakepifo.pdfIn PDF document text
    • http://kef.org.pk/kcfinder/upload/files/74167864897.pdfIn PDF document text
    • http://myapartment.de/web/editor/files/90170361139.pdfIn PDF document text
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/48775f31cd10d16a15f5c6ebd1c05b1a/5587078950.pdfIn PDF document text
    • https://kafutejitiripil.weebly.com/uploads/1/3/4/6/134625984/webuxafepesum_zatavovimudubor_gesoj_pufavoterotof.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/melorutadinonitamoguza.pdfIn PDF document text
    • https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/e547853cc58c0743b0e076f56f754951/73545067678.pdfIn PDF document text
    • http://indcms.testingmachines.com/images/file/suzavuxotedos.pdfIn PDF document text
    • https://nivagevap.weebly.com/uploads/1/3/1/4/131438423/17b9f33c8fe40.pdfIn PDF document text
    • http://zhjpharm.com/upload/files/45821404463.pdfIn PDF document text
    • http://daiichilogistics.com/uploads/news_file/wizenefizarerugipo.pdfIn PDF document text
    • http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16222543f45ce0---41665071196.pdfIn PDF document text
    • http://chanhbon.vn/media/ftp/file/lakeraw.pdfIn PDF document text
    • https://wotuvinuvokotar.weebly.com/uploads/1/3/5/3/135330473/gagosijiliwu_guzadilupi_tuwunusatab_xunedoxinexuger.pdfIn PDF document text
    • http://mtkshop.com/images/uploads/file/zubosibavitiburi.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/65739356913.pdfIn PDF document text
    • http://indecomavo.pl/userimg/inc/semubekafapevufusababaves.pdfIn PDF document text
    • https://www.ttmagazin.com/assets/admin/js/plugins/kcfinder/upload/files/xaxararujibiwavitasonamoj.pdfIn PDF document text
    • http://naasschoolofmotoring.com/fckeditor/userfiles/file/tuziw.pdfIn PDF document text
    • https://ochronaskory.pl/pliki_user/File/89679008425.pdfIn PDF document text
    • https://takarasushimn.com/userfiles/files/majuvefanofonegilubak.pdfIn PDF document text
    • http://formanwoman.ru/userfiles/files/sulezezewigejawu.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/4lp7qhk6pnhcjnrbh84vtlro91/53901399373.pdfIn PDF document text
    • http://kiko168.com/UploadFile/file/20220306124748848.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=lg+hbs+900+user+manualPDF link annotation
    • http://www.barczyk.plwww.sgpm.krakow.pl/aanewsysn/kcfinder/upload/files/belavofineguxib.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_off00049569.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00049569.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00049569.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49569 10732 bytes
SHA-256: 9c5f86fb0af983a4d46a41697e37c278ad6af34192ff53c2b8186f7dad57b95f
font_01_sfnt_off0004addb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ADDB 18696 bytes
SHA-256: 3d07710d02f25fb726aa1ed92493d1d137c7dee632b6ef32ae21d03e708c082a
font_02_sfnt_off0004de68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DE68 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1