Malicious PDF — malware analysis report

Static analysis result for SHA-256 552c538e7062465b…

MALICIOUS

PDF

338.1 KB Created: 2022-01-05 08:02:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 9bbccf5ebae0b2f861536cf298bca920 SHA-1: 36b30046cc5c9a16af041d02857bd502aed1473a SHA-256: 552c538e7062465bb6323dc710929ea73698eb9aecd89195f90e9a20ff5d9a48
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7167

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://samuelben-horin.com/userfiles/file/keluginis.pdf In PDF document text
    • http://redactron.com/userfiles/file/12058368634.pdfIn PDF document text
    • http://cascinamana.it/userfiles/file/paxofup.pdfIn PDF document text
    • http://24hnbc.com/assets/ckfinder/core/connector/php/uploads/files/85297786995.pdfIn PDF document text
    • http://fundacjahfg.pl/upload/file/1377213907.pdfIn PDF document text
    • http://www.hkimm.hk/_bin/ckfinder/userfiles/files/43069901742.pdfIn PDF document text
    • http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617733f28eafb---91042027946.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/rdg93nn64gpvl4e6b71qoqoiv8/lajofigaselubaditibi.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161b10f5cc464d---doxalujuzinoxuboforivok.pdfIn PDF document text
    • https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/161a498a4a8cae---nepenas.pdfIn PDF document text
    • https://tonymusic.se/UserFiles/files/gorelak.pdfIn PDF document text
    • http://j-club.eu/userfiles/file/bilaxonolizekigimaxitu.pdfIn PDF document text
    • http://apartament-krokus.pl/userfiles/file/63584673744.pdfIn PDF document text
    • http://potolokomsk.ru/ckeditor/kcfinder/upload/files/70651861058.pdfIn PDF document text
    • https://confidence-ist.com/ckfinder/userfiles/files/vatigoveboj.pdfIn PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1615c2665915a4---47022560765.pdfIn PDF document text
    • http://jngf.cn/files/file/detajokagosoxotoxuve.pdfIn PDF document text
    • https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161a04c1bec30a---pibepapizoxetudimeteno.pdfIn PDF document text
    • http://darstin.com/userfiles/files/donoxoz.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3b0f2e4e9cc1b25081bb821d3b95a8a4/jowilinowivewa.pdfIn PDF document text
    • http://www.socfertenviron.org/cmsfile/contentfiles/66961235314.pdfIn PDF document text
    • http://footstepfloor.com/upfiles/files/21251584997.pdfIn PDF document text
    • http://lightofislamonair.org/uploads/files/javepetafafajax.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/RhDyTiV0TgQ/uplcv?utm_term=samana+dominican+republic+travel+guidePDF 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_off0004d437.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004d437.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004d437.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D437 11068 bytes
SHA-256: 324b33d94d49d54ee651e28242fa8e5e8304ec2a5e49443da1de8628f60bf38f
font_01_sfnt_off0004ed8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ED8D 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0005042c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5042C 19836 bytes
SHA-256: d963810bb4bc2b60927fcb8fa630a067e498bcd6f752aa0920df13db685f1d73