PDF malware analysis — malicious · b2148619f12b3bfc

MALICIOUS

PDF

449.9 KB Created: 2021-06-11 14:34:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 7327d0e2e96c835122944400986cbd6f SHA-1: 7f87da50edc729c54552c36bb905d07c5e4b26b7 SHA-256: b2148619f12b3bfc27f4bfd968518e26b5dd6da568d80d7b0fc82e2a4ec0e255

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to compromised WordPress upload directories, suggesting it is part of a phishing campaign. The document body, though heavily obfuscated, appears to be a lure related to "answer keys". The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites or download further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9548

Heuristics 4

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.
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://infrive.ru/uplcv?utm_term=pci+reproducible+us+history+shorts+answer+key PDF link annotation
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1608adaae9f062---55561816407.pdfIn PDF document text
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/3hamoo21p3u2a8tie0oldq06l5/pakewudokituvebufugisiz.pdfIn PDF document text
- https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/9d92c23267cec222f5a751c46aee82bc/7987922325.pdfIn PDF document text
- https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/be0abdbb6d8c0d00e53157f50cc1152e/waxiladetuvebamikufofuw.pdfIn PDF document text
- http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160782bfe452a6---rosuvagelajejozajeseludi.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078b4d630ea6---7714016973.pdfIn PDF document text
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b22d16693d---12407089068.pdfIn PDF document text
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/kmcpj3bgdis416p4jre5capdso/54831594506.pdfIn PDF document text
- http://pechati-piter.ru/userfiles/file/91727316487.pdfIn PDF document text
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/5cc271r936sqfuk856170hbcs3/mosoviboxime.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/s5qn3rnggos33ve77td6lok0o2/vufopuwusizobenofat.pdfIn PDF document text
- https://vannordenvastgoed.nl/userfiles/file/zavar.pdfIn PDF document text
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/16083a41e6bf63---88107163562.pdfIn PDF document text

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