Malicious PDF — malware analysis report

Static analysis result for SHA-256 487d8d5d5ba8c6c5…

MALICIOUS

PDF

275.5 KB Created: 2022-01-04 21:46:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-21
MD5: 0e9e564833940f9bb9f544f9e75ed790 SHA-1: 8f1ce2a99795874f3ad7c5df85a5c7eae247a7d7 SHA-256: 487d8d5d5ba8c6c54a2727011dae75ce0558534e7a59c56ed346d90a0acbe594
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8053

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://sloplast.com/userfiles/files/durapi.pdf In PDF document text
    • http://talleresjpg.es/img/file/91698302318.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136b6f2e4027---58398861812.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161b665afe550a---wezixegen.pdfIn PDF document text
    • https://serka.com/serka/upload/files/25045265801.pdfIn PDF document text
    • http://studioingtassinari.eu/userfiles/files/41334315996.pdfIn PDF document text
    • https://allesoverhr.ccinteractive.nl/nieuwsbrieven/berichten/falutuvapevereradixuzik.pdfIn PDF document text
    • http://clerus.hu/files/file/59801942899.pdfIn PDF document text
    • https://mygenius.ru/admin/ckfinder/userfiles/files/bamopazik.pdfIn PDF document text
    • https://g-mtcc.com/motakamel/Ups/files/gonobejifoliripa.pdfIn PDF document text
    • http://lachina.cn/upload/file/49886148487.pdfIn PDF document text
    • http://synagoge-stommeln.de/ckfinder/userfiles/files/gozaparunelafuroperiradot.pdfIn PDF document text
    • http://iswii.net/ckfinder/userfiles/files/1790950971.pdfIn PDF document text
    • http://lso-msm.com/userfiles/file/91075305544.pdfIn PDF document text
    • http://inlocoodontologia.com.br/assets/kcfinder/upload/files/sezedime.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/fbdc21962185368de5d52809f173a6b1/46244024132.pdfIn PDF document text
    • https://unixsensor.com/uploads/files/202112131504125763.pdfIn PDF document text
    • http://viajaconsciente.com/imagenes/userfiles/file/zexetavojovima.pdfIn PDF document text
    • https://comillaspostgrado.es/userfiles/file/mofekalapepupopemefe.pdfIn PDF document text
    • https://spandoekland.nl/userfiles/file/mozezapeposuxejone.pdfIn PDF document text
    • http://cardealer-space.com/js/upload/files/58558407214.pdfIn PDF document text
    • http://yepuco.com/uploads/files/degepuxefodukifado.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/KGDyd8lM0uI/uplcv?utm_term=antrenmanlarla+matematik+1.+kitap+pdf+indirPDF 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_off0003e304.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0003e304.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003e304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E304 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003f9a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F9A3 18432 bytes
SHA-256: c9e10dbcd741e9cf8e89c1d63713ad4e8d3dcccdc560cdc6f7df8a249831e3ad
font_02_sfnt_off000426ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x426CA 10560 bytes
SHA-256: d1118ab876123d948861352a790fd485a7f0effb235b0bd743f187ce72945ee9