Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b00761003979f6c…

MALICIOUS

PDF

61.4 KB Created: 2021-09-13 07:24:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 01c170b7c9c1e0a26476022c5c4f42e7 SHA-1: d0d61ae1fbc13e90130fc5a3eaafc39e2e5eed60 SHA-256: 7b00761003979f6c3e5b37e8dbadbdd560988891625089283d61353c4452bb39
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm with multiple URLs pointing to various websites, many of which are hosted on compromised CMS platforms or disposable hosting. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to lure users to external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6040

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://arvikabc.com/images/uploadedimages/file/92081243125.pdf In PDF document text
    • https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/2dff6adc9de5474946df3da333961147/51579543618.pdfIn PDF document text
    • https://zebcom.in/userfiles/file/99396079349.pdfIn PDF document text
    • http://flemingdecal.com/uploads/assets/file/8755196632.pdfIn PDF document text
    • http://www.web-globus.de/ckfinder/userfiles/files/91737319227.pdfIn PDF document text
    • https://dpengineerindia.com/admin/userfiles/file/raguvexevewasadepetopiw.pdfIn PDF document text
    • https://yingzhaoliuart.com/upload/file/41938267324.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/51847989113.pdfIn PDF document text
    • http://picassogift.com/Uploadfiles/files/40039926407.pdfIn PDF document text
    • http://dennehylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/rukixurefexozux.pdfIn PDF document text
    • http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161330db95d848---27036068383.pdfIn PDF document text
    • http://wskinbody.com/data/boardData/files/53353305990.pdfIn PDF document text
    • https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/r397l32q0rqn4fsbm7g101ae4f/tibuxeroxomubidab.pdfIn PDF document text
    • http://soluzionebenessere.eu/userfiles/files/woxipezawegawufajamofone.pdfIn PDF document text
    • https://doanandieuduong295doson.vn/namthuan/images/news/files/81759339920.pdfIn PDF document text
    • http://baovethanglongmb.com/upload/files/78171657288.pdfIn PDF document text
    • https://lotusmarinevn.com/upload/files/58096542583.pdfIn PDF document text
    • http://keramann.ru/uploads/files/lutipadawisotajazojalok.pdfIn PDF document text
    • https://www.educazionesessuale-scuola.ch/ck/ckfinder/userfiles/files/kinetiximegow.pdfIn PDF document text
    • http://predit.ru/admin/ckfinder/userfiles/files/tugopap.pdfIn PDF document text
    • http://akademibt.com/resimler/files/gegolafanutakelibeximalo.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/8tcjtq31sc8s1iav9lqmml8c19/kerorawukozizufinimedugu.pdfIn PDF document text
    • http://www.novosib-sport.ru/ckfinder/userfiles/files/37742059997.pdfIn PDF document text
    • http://5lovestartw.com/CKEdit/upload/files/23536474120.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=diskdigger+pro+apk+no+rootPDF link annotation

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