Malicious PDF — malware analysis report

Static analysis result for SHA-256 c147c8806a073e28…

MALICIOUS

PDF

82.3 KB Created: 2021-09-05 07:02:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 4d7fe704e8bb5a752a4747296d90019d SHA-1: 2e1aba43b3d98a65ccfb33d86c13a1789170cc19 SHA-256: c147c8806a073e282c8431b438bc5cad591151a71f004f523a9233c6ad4924a5
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://straub-online.ch/userfiles/files/nejafoge.pdf
    • https://basalyemek.com/ckfinder/userfiles/files/59468168475.pdf
    • http://luingpyrex.cz/foto/Image/file/21219503379.pdf
    • https://naucharts.com/ckfinder/userfiles/files/mewomofabobelolawemi.pdf
    • http://epoptavky.com/is/images/FCKeditor/File/ratasisizoboxumuf.pdf
    • http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a19a90a060c---89888076906.pdf
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe50d30576---88727687920.pdf
    • http://bioident.pl/photos_fck/file/74966821964.pdf
    • http://cestovni-postylka.eu/userfiles/file/22715786251.pdf
    • http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c85afd048d6---dunafatiretumezede.pdf
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d98adb0e36---55829951030.pdf
    • http://shinserviceodi.ru/wp-content/plugins/super-forms/uploads/php/files/17e1fa27fc7411c47580bde1c92fb5f3/46533466334.pdf
    • https://www.comperat-89.fr/ckfinder/userfiles/files/serobef.pdf
    • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/86803b734361432cda6b50644e5ceca1/sofilobinow.pdf
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/5bnl4g8kca9joc3sgl0rdtqbq2/29083271416.pdf
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091fd519f099---jetorerapajinexadagetat.pdf
    • http://rzn-house.ru/upload/file/68705279072.pdf
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/o7rbalr429b33tvdeqs6v973k9/derobelonezir.pdf
    • http://brilspa.ro/userfiles/file///papaguxis.pdf
    • https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/2a23122fb69b5a8969a2caf37496b122/14670747954.pdf
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161031097ce3c5---kafusobubukugepuke.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=severiana+ricardo+chavez+casta%C3%B1eda+pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5cc.bin
82c56421856cf5122987ae7a741cc6f7936f9db6e6e9273c77220b88e80718d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5CC 19352 bytes
font_01_sfnt_off000107b1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x107B1 16792 bytes
font_02_sfnt_off00011fc8.bin
28cb8c634a896e5446de538324a232048800f8c5f7a9e48f18bf34871722ed04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11FC8 11076 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.