Malicious PDF — malware analysis report

Static analysis result for SHA-256 8470febc597f50e7…

MALICIOUS

PDF

368.7 KB Created: 2022-01-30 16:48:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: b79cf8d230518e5b867b90d8cade239f SHA-1: 09f625549de5e4ba4d5848fc58b2b63d693bcc03 SHA-256: 8470febc597f50e727c4fdc0abb8de19ef0ee59f8e38d4b2323ab00baddee6dd
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5964

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://sunuf.co.za/XSRYdR1H?utm_term=abhiyum+naanum+cut+songs PDF link annotation
    • http://karczma-zaborow.pl/userfiles/file/61444838196.pdfIn PDF document text
    • http://peneleos.pl/userfiles/file/peguleziserim.pdfIn PDF document text
    • http://gz-chengeng.com/uploadfile/files/fawawakaxudo.pdfIn PDF document text
    • http://werkschoenenverkoop.nl/images/docman/files/46246232589.pdfIn PDF document text
    • http://asbu.net/uploads/FCK_files/file/davogekot.pdfIn PDF document text
    • https://conf.uml2.ru/kcfinder/upload/files/45481589089.pdfIn PDF document text
    • https://taybaite.com/userfiles/file/23565776403.pdfIn PDF document text
    • https://www.southdownscellars.co.uk/ckfinder/userfiles/files/84861738950.pdfIn PDF document text
    • http://dieterheich.de/images/uploads/file/koloseragesu.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/b32510fdbf6f5a67cf6ce7b85ed12d9a/44444122879.pdfIn PDF document text
    • https://kettosallampolgarsag.net/imagini_ws/xusali.pdfIn PDF document text
    • http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161f3aa430e7bb---94418107404.pdfIn PDF document text
    • http://unipsyclinic.com/userfiles/file/20211026015649.pdfIn PDF document text
    • https://allmassage.net/upload/file/20211009190923.pdfIn PDF document text
    • http://graficaeformazione.it/userfiles/file/36202089385.pdfIn PDF document text
    • http://hoteldanang.vn/uploads/images/files/52000999988.pdfIn PDF document text
    • http://bestorkate.com/uploads/ckeditor/files/mekosejoku.pdfIn PDF document text
    • https://smarttactic.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161f080bd2127e---49134988033.pdfIn PDF document text
    • https://oncetrabzon.com/resimler/files/93532731857.pdfIn PDF document text
    • http://zaun-produzent.de/userfiles/file/vimipujotibugekafiku.pdfIn PDF document text
    • http://arbigaz.com.tr/panel/kcfinder/upload/files/wumazalu.pdfIn PDF document text
    • https://www.propertymegamart.in/admin/ckeditor/kcfinder/upload/files/bunimebomulatir.pdfIn PDF document text
    • http://rideabikenews.com/user_img/files/xipagiseben.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/161dd1432b07d1---zonarisabize.pdfIn PDF document text
    • https://easb-bd.org/public/files/assets/ckeditor/kcfinder/upload/files/xunavinevumadawop.pdfIn PDF document text
    • http://stoka-saarlouis.de/userfiles/file/tamenakumikawimen.pdfIn PDF document text
    • http://ahkkpcm.org/userfiles/bajotedoxosepapokip.pdfIn PDF document text
    • http://www.sloepverhuur-debiesbosch.nl/upload/files/10124186144.pdfIn PDF document text
    • http://nsfeed.com/_UploadFile/Images/file/kesuwusabagitudirarogirod.pdfIn PDF document text
    • https://truongdongkinh.phapluatvietnam.com/upload/ckupload/files/98987238165.pdfIn PDF document text
    • http://rld-carbon.ru/file/kagemijodato.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d74bad72d46---12113532094.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 (stream_005_off000572ff.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_005_off000572ff.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off000572ff.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x572FF 23356 bytes
SHA-256: 8c6d9d7037433f950b5c350108a0682292f0079cde3aacadc1c54f1cb3f57630
font_00_sfnt_off00052b27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52B27 18008 bytes
SHA-256: 0e9728a90a2951532d341b0e28feb0195f2741d03264566a81f448568d8d9d28
font_01_sfnt_off00055a6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55A6B 10736 bytes
SHA-256: a3db4d564ac2b21c71b494043937ea5a7f04c02c8fb148d0739366f1139a310c
font_03_sfnt_off00059c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59C73 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336