Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b715cc92c82045…

MALICIOUS

PDF

44.8 KB Created: 2021-09-27 07:32:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: aa968013a29a59bacea59c5e6c1b52a6 SHA-1: 55bd242854c83c020b5d66eeffd78d7d6698c96c SHA-256: 50b715cc92c82045a5721b053841416449a8497e43bf5e0b29064703a429ebee
162 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for delivering malicious content or redirecting users to phishing sites. Several heuristics indicate the PDF is part of a link farm, potentially for SEO poisoning or distributing malware. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The embedded URLs point to compromised WordPress sites and other disposable hosting, likely serving as download or phishing destinations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5629

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.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. 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://drafthe.ru/uplcv?utm_term=inspect+element+private+instagram PDF link annotation
    • http://devitohomesorlando.com/userfiles/files/46972014667.pdfIn PDF document text
    • http://www.superior-inkjet.com/login/ckfinder/userfiles/files/58912824413.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/26a65utfvf33f24g936ml0n4q7/42219355436.pdfIn PDF document text
    • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614afc7c03432---mipezetofirixup.pdfIn PDF document text
    • http://kleinschadenexperte.de/userfiles/file/kerixadowerodiximawote.pdfIn PDF document text
    • http://www.me.ntou.edu.tw/ckfinder/userfiles/files/20210903_184804.pdfIn PDF document text
    • http://fundacjaproartis.pl/javascript/ckfinder/userfiles/files/pesusirenub.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/161500cf69f47c---24769209026.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614304878e2b5---neretemiwajep.pdfIn PDF document text
    • http://spprp.pl/userfiles/file/gavokefimadaruse.pdfIn PDF document text
    • http://arcomproltd.com/userfiles/file/sezebe.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/1vlqkdj9de2fo68u8eiscd0294/11550555258.pdfIn PDF document text
    • http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/dipafowaxep.pdfIn PDF document text
    • https://matharu.ae/userfiles/file/297146323.pdfIn PDF document text
    • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/550c43566918300ddb758707b7247520/mojen.pdfIn PDF document text
    • http://playonathletics.com/userfiles/file/donejeweb.pdfIn PDF document text
    • http://octapus.vn/images/uploads/files/40056047843.pdfIn PDF document text
    • https://braindevelopmentmaps.org/userfiles/files/53475445538.pdfIn PDF document text
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146ec2b836fd---96011992420.pdfIn PDF document text
    • https://copacndg.com/images/uploads/files/bunafoxut.pdfIn PDF document text
    • https://tivicom.vn/upload/files/texisudera.pdfIn PDF document text
    • http://hangtatmj.com/userfiles/fojaxe.pdfIn PDF document text
    • http://zsmnowakowski.pl/userfiles/file/99759932452.pdfIn PDF document text
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/fa8c62475133e839fc0934ca4509e17f/63954897013.pdfIn PDF document text
    • https://pezenasenchantee.fr/userfiles/file/18394980900.pdfIn PDF document text
    • https://terlickodds.cz/www/www/fckphotos/file/mejarep.pdfIn PDF document text
    • http://www.iuoelocal870.com/kaizen/ckfinder/userfiles/files/76957771096.pdfIn PDF document text

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