Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9d8df13a76f5f0a…

MALICIOUS

PDF

55.8 KB Created: 2021-05-07 03:32:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 698a991796a98837c31ee7213fd62f0f SHA-1: 2ef1414e64edceddb4297eb0195454f17486b0a4 SHA-256: f9d8df13a76f5f0a924392ada5a0a4947c1026ba820861d18b0ed4a208841552
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF that contains numerous links to external websites, many of which are hosted on compromised CMS platforms. The presence of a link farm and the ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggest a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and link farm indicate an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7659

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://garglob.ru/uplcv?utm_term=arafat+dua+arafah+pdf
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160945d3935e71---49405643753.pdf
    • https://www.idahomedia.com/wp-content/plugins/super-forms/uploads/php/files/8da7df5571e50f1f672066c7f9b786c9/18565701124.pdf
    • https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/4e0dcea9fba99c4ad071b0cdc9dacb5c/9724369296.pdf
    • http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbe422242c---radezi.pdf
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/df8e119c1e637d159e319b1ace757a07/lawinuxelevogowelekuzit.pdf
    • http://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16074179c90660---ximuso.pdf
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/6999b79b288f855783c460c547d6815b/fibibadarulanuxesumom.pdf
    • https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/f4c9c2cf8ae2cb8329ba7179329cff4c/forarepuma.pdf
    • https://ahreco.com/uploads/news_file/fezamimopediburiwijuses.pdf
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/bb0b00bcd81f29037ceabf4a8dd22a8c/45842455718.pdf
    • http://al-bandak.com/userfiles/file/84687805034.pdf
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160891bd04affc---fomosarudupedojufofabu.pdf
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e80e238e41---wekizajadobukodupebexezu.pdf
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/97be44f669f9ab48034e585e085aa97f/giwibetidanil.pdf
    • https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/f2c0286178946ea179c4a5991dd6cb90/jevivonejono.pdf
    • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16087ccd775cee---31622700190.pdf
    • http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160819721a9c11---jisanurosozawuba.pdf

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