Malicious PDF — malware analysis report

Static analysis result for SHA-256 367303642c3e89f4…

MALICIOUS

PDF

53.2 KB Created: 2021-08-26 08:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 1945c83ea8372970093320a39e245018 SHA-1: 561488ddc469822fb3b0f26ce9ad14b0da70db92 SHA-256: 367303642c3e89f431c5154667628c2d67778eb09ce0fad4a334a1f77f5bd85d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link farm pointing to numerous compromised WordPress sites, indicating a phishing or malware distribution attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier further support its malicious nature. No scripts were extracted, but the structure suggests it's designed to lure users to external, potentially malicious, content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8172

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 http://yaqeen-eg.com/userfiles/file/89894378596.pdf In PDF document text
    • https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/45fc771b6a4c7307fb2986f025c16431/kexafubelataxadojola.pdfIn PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/e71ptto3vlgc9m9rck2npuaka0/xuwetajidawuzos.pdfIn PDF document text
    • http://cocoal.com/uploads/file/devuduwit.pdfIn PDF document text
    • http://drivescuolaguida.it/userfiles/files/54753975058.pdfIn PDF document text
    • https://digidatadecolombia.com/wp-content/plugins/super-forms/uploads/php/files/13915296c9fe1b7ad0cc81665119d802/51088346977.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/20776549783.pdfIn PDF document text
    • http://agro-vostok.ru/userfiles/file/tedesikegusebadawu.pdfIn PDF document text
    • http://lambanghieuquangcaogiare.net/vietkiendo/upload/file/foreka.pdfIn PDF document text
    • https://fidelishospice.com/ckfinder/userfiles/files/gogalamalogipefobusezuf.pdfIn PDF document text
    • https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608c3f2e8f531---84029678024.pdfIn PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609a1b7ed0d77---48750082159.pdfIn PDF document text
    • http://finproekt-msk.ru/userfiles/file/20971086969.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/dc0f1bb228cabc69372d0333563f4c27/64637645786.pdfIn PDF document text
    • http://attlas.center/userfiles/file/pirav.pdfIn PDF document text
    • http://aromamahabaleshwar.com/ckfinder/userfiles/files/97147363061.pdfIn PDF document text
    • https://ijmscr.com/ckfinder/userfiles/files/dojako.pdfIn PDF document text
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b2698e850be---fogize.pdfIn PDF document text
    • https://garyjetcenter.com/wp-content/plugins/super-forms/uploads/php/files/10d528d0d7007adfe75e15b62dfb43ee/59286614925.pdfIn PDF document text
    • https://advance-pack.com/editor_upload/file/78291721672.pdfIn PDF document text
    • https://bio-obst-und-gemuese.de/userfiles/file/6006567747.pdfIn PDF document text
    • https://apc-algercentre.dz/ckfinder/userfiles/files/buritadafuseg.pdfIn PDF document text
    • http://thekitchendesignstudio.org/uploads/files/57089559311.pdfIn PDF document text
    • https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ff78952fab9---kafiniv.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=rat+terrier+chihuahua+mix+whitePDF link annotation

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