Malicious PDF — malware analysis report

Static analysis result for SHA-256 33375d7c6c9e47bd…

MALICIOUS

PDF

51.2 KB Created: 2021-07-30 20:17:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: afe2147741b7367a71f1210ac0e714cd SHA-1: c2f827cfa5c5503b219ada9f4fe088194d4854e8 SHA-256: 33375d7c6c9e47bda8ab63d400a614a5c3ded7a1458b9910979ff6f23e57172c
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a link farm pointing to compromised WordPress upload storage and other disposable hosting. These elements suggest the document is designed to trick users into downloading further malicious content, likely a phishing or trojan payload. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7834

Heuristics 6

  • 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.
  • 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 http://sity-luxe.ru/userfiles/file/34702780415.pdf In PDF document text
    • http://safires.cz/ckfinder/userfiles/files/torepawexa.pdfIn PDF document text
    • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/o63v8441gmegalf2m0vpuji3mo/suterit.pdfIn PDF document text
    • https://kfmaccounting.com/webroot/img/content/files/rewixenojoboruvawib.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083323fb6505---81356911946.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16094895438ce5---35326340729.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0a3a80dd3---lileredi.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f73d185a980---vixemakumijogetaniluso.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160762698b5ae5---32129745498.pdfIn PDF document text
    • http://asupuro.com/user_data/image//file/goxugaxuluguwalafafop.pdfIn PDF document text
    • http://staropolski.net/Upload/file/tusesikobezuruniresutujez.pdfIn PDF document text
    • https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d01be500f7---74969855746.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/50fd7bf3c4f0dd96c599bb80d268cb03/kifejexebeji.pdfIn PDF document text
    • https://linlinline.biz/js/ckfinder/userfiles/files/12673597005.pdfIn PDF document text
    • http://habitat3.eu/userfiles/files/ruredirezetisarev.pdfIn PDF document text
    • http://logisticsnetworks.net/ckfinder/userfiles/files/pedewi.pdfIn PDF document text
    • http://bachova-terapia.sk/images/file/51257292154.pdfIn PDF document text
    • http://zuche0551.com/upload/file/nofilafidakut.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/d3b31ca823d499153426395e73988d4f/xabatapuzagoxa.pdfIn PDF document text
    • http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160f68e474b74c---98018539742.pdfIn PDF document text
    • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160777f337ed43---90534220442.pdfIn PDF document text
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608d157526f2f---70634323888.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=bekhayali+song+female+version+mp3+download+mr+jattPDF link annotation

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