Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4f5f23bc6349c59…

MALICIOUS

PDF

335.9 KB Created: 2022-01-05 08:42:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-01
MD5: 63049a42a004c51f71935fa390961ed6 SHA-1: 83db20a789a635bc3a2356c059f82e1f1f37d0af SHA-256: a4f5f23bc6349c59142e7b935fd4b68587ffb21a66d60d46e773ebcf80b19b41
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6933

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://nextgenship.net/upload/file/20211105163615103096.pdf In PDF document text
    • https://pacientes.quiroser.com/UserFilesQUI/file/niwurososew.pdfIn PDF document text
    • https://dutchhaves.com/uploads/files/202110131945523702.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161665e320e46c---jimedonetiwe.pdfIn PDF document text
    • https://apoiotelecom.com/imagens/img_fckeditor/file/67481999020.pdfIn PDF document text
    • http://theexplorerthai.com/userfiles/files/lunokefojebisijexun.pdfIn PDF document text
    • http://dj-maily.com/uploads/pages/files/senazorafolulutud.pdfIn PDF document text
    • http://henzefashion.com/userfiles/file/71057722579.pdfIn PDF document text
    • http://weddingdove.tw/uploads/files/202110161208308249.pdfIn PDF document text
    • https://reha.bg/content/upload/file/pabefimesolatiloxa.pdfIn PDF document text
    • http://glassinter.de/kcfinder/upload/upload/jabizifeloxiwutoze.pdfIn PDF document text
    • http://www.bash.cl/media/file/xudenatinopiruseripib.pdfIn PDF document text
    • http://archicakedesign.com/upload/file/2662742256.pdfIn PDF document text
    • http://chornakorn-packing.com/ckfinder/userfiles/files/sifimaxu.pdfIn PDF document text
    • http://avvocato-callegaro.it/public/file/27998726881.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/739a1decb002dac8257f2134b11c3ff6/46366396872.pdfIn PDF document text
    • http://esistore.be/userfiles/file/20099154341.pdfIn PDF document text
    • http://iberryhomemade.com/userfiles/files/lopepuxemupidibiwumisa.pdfIn PDF document text
    • http://horizonpestservices.com/userfile/fufolugo.pdfIn PDF document text
    • https://gancza-yacht.pl/userfiles/file/lawikorex.pdfIn PDF document text
    • https://meganimal.pt/site/upload/file/remaxuriduju.pdfIn PDF document text
    • http://artpolinakuzina.ru/pict/file/68026045636.pdfIn PDF document text
    • http://a899.net/userfiles/file/62736418091.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/69431649224.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/u-9XGpgKpwY/uplcv?utm_term=helping+verbs+examples+sentences+pdfPDF 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_off0004d494.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d494.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d494.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D494 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0004eb38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4EB38 11144 bytes
SHA-256: 6e7a3e1dfa81293b8fa6ba1221d8e754d40a997fe9e7e32738fe3d83d3a6f321
font_02_sfnt_off000504cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x504CB 17040 bytes
SHA-256: 1dc60969303c786aae9c8ceaee91f694f175a85e66e919f771e2e8c0f707cf7f

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