Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1e428a668fdf978…

MALICIOUS

PDF

65.7 KB Created: 2021-09-18 11:17:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 06b709135fdbc3a48b2a8f350a3f2ec7 SHA-1: 86e70b75fa0e145b9dc50825d301ebde6af0238e SHA-256: f1e428a668fdf97812175bd79bd2d9619f89c514674fe7bd566ab78f98cb7226
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which are hosted on disposable domains or compromised CMS uploads, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7281

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://crysiq.ru/uplcv?utm_term=realistic+sex+games+android PDF link annotation
    • http://vhshf.de/File/12014652519.pdfIn PDF document text
    • http://youzedu.com/ckimages/files/20210917015744501467.pdfIn PDF document text
    • http://wedding-box100.com/uploads/files/202109090644298190.pdfIn PDF document text
    • https://dellrein.ru/content/file/tulisevulizufe.pdfIn PDF document text
    • http://htwy.com/upload/file/nexiniketuka.pdfIn PDF document text
    • http://aow.infogestnet.it/ckfinder/userfiles/files/6162892346.pdfIn PDF document text
    • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/79d33e4777bc5eace1ee10c98195f967/jagarinisil.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f17544b26c---70393644863.pdfIn PDF document text
    • http://wajl.net/img/file/202191122032.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/764158b08eca8ab786c3e500c3c5cb02/pijilimujafefeke.pdfIn PDF document text
    • https://livbiopharma.com/userfiles/file/tujoxivulototamopakifani.pdfIn PDF document text
    • http://chipmax.in/chipmax/ckfinder/userfiles/files/56324849110.pdfIn PDF document text
    • http://wittymall.com/multimedia/userfiles/file/34153658325.pdfIn PDF document text
    • http://konferencii.org/js/ckfinder/userfiles/files/39933665441.pdfIn PDF document text
    • http://vo23.ru/upload/file/72063959472.pdfIn PDF document text
    • https://monographie.com/ckfinder/userfiles/files/fenojedesoviparesanozib.pdfIn PDF document text
    • http://adgroup.co/userfiles/file/durunozumujiga.pdfIn PDF document text
    • http://santamariamikado.com/uploads/files/tusome.pdfIn PDF document text
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/c6a4e82c363c11a6c520c274a9d98810/78154316927.pdfIn PDF document text
    • http://ping-property.com/user_img/files/22243676092.pdfIn PDF document text
    • https://martan.es/cenavarra_userfiles/files/xosulepe.pdfIn PDF document text

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