Malicious PDF — malware analysis report

Static analysis result for SHA-256 17f7e75730cd3988…

MALICIOUS

PDF

54.7 KB Created: 2021-06-05 14:28:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4658e6f80036e5abf73ec84efc4de738 SHA-1: d18a903c6344ac2ec18a87c31b9a1d1060437681 SHA-256: 17f7e75730cd39889a83b7feb3d622ef12ebfd33aa85d78246b3f8f6d8f67cac
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to external websites, many of which are hosted on compromised CMS platforms. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using disposable hosting for link farms, suggesting an attempt to distribute malicious content or phishing lures. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or malware distribution vehicle.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7323

Heuristics 5

  • 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
  • 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://archism.ru/uplcv?utm_term=bentley+bmw+e90+service+manual
    • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/3774eee5e1d3c7dddf83ac70dd6acbf2/43857760315.pdf
    • https://teenvolunteer.org/wp-content/plugins/super-forms/uploads/php/files/0b0ea0c64af5d3ed1378627fde4bc468/xipewefudogixofexusagog.pdf
    • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/n8reo4fktps2qt4agl1u5b14oh/62250970553.pdf
    • https://aimhc.com/userfiles/file/67893991158.pdf
    • https://www.marvistasales.com/wp-content/plugins/super-forms/uploads/php/files/30329cf3a81c7aae086caca56e577906/82694084552.pdf
    • http://aldo-ins.com/userfiles/file/60218450422.pdf
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/be509ab3e1408880d49429a742548d42/14415757714.pdf
    • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081c8fe0856d---pekogameguxowifovu.pdf
    • http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bda3d3c540---87264637813.pdf
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/defm2h5i692cjqs4djp3cfdg08/xamapuwikuvawefasixoxo.pdf
    • http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609911c4a05de---womawijud.pdf
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fc57025800---wikovijaru.pdf
    • http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a99e5ce89e7---kigitisexikuvipovukop.pdf
    • http://stolizstekla.ru/userfiles/file/katonaxokekivozu.pdf
    • https://businesslife.com/content/file/suxikoxajoxupipij.pdf

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