Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2c033a4d26e24c…

MALICIOUS

PDF

63.8 KB Created: 2021-08-09 19:53:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: ffed82caf2227c7002f7938f9bfd253d SHA-1: 334aa11158e9082505cd821b7d7e8e57679af5e8 SHA-256: 6f2c033a4d26e24c83ec21efa802f2b6378eae947e3340c833d73a2c6643acc6
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites utilizing the formcraft plugin for file uploads. These URLs likely serve as a link farm to redirect users to malicious content. The ClamAV detection and ML classifier further indicate malicious intent, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7390

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://pistant.ru/uplcv?utm_term=what+lifetime+movies+are+based+on+true+stories PDF link annotation
    • https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607c639f10ec1---wumitonuzepalidezusujus.pdfIn PDF document text
    • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072d68925f90---winekokufopipux.pdfIn PDF document text
    • http://www.prieteniitehnicii.ro/documente/file/musosoxezesemopiku.pdfIn PDF document text
    • http://doremimarlikinsaat.com/userfiles/file/63831763668.pdfIn PDF document text
    • http://oldtimerclub-thueringerberg.at/images/file/39367448705.pdfIn PDF document text
    • https://koetec.com/home/~ptow/public_html/ckfinder/userfiles/files/rubaxazusotutanelewufo.pdfIn PDF document text
    • http://tiwtactic.com/userfiles/files/96881332861.pdfIn PDF document text
    • http://tragiaocolamsapa.com/userfiles/image/file/78520768356.pdfIn PDF document text
    • http://graficaeformazione.it/userfiles/file/99739445233.pdfIn PDF document text
    • https://dvg.asia/ckfinder/uploadfiles/files/zokotipubaxafus.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/16097503ecb752---sabuzijekena.pdfIn PDF document text
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16071ceb3e3ac0---xaxasakodapalorigumawifaf.pdfIn PDF document text
    • http://5percent-design-action.com/upload/users/files/weluvipurolinuwasujuti.pdfIn PDF document text
    • http://hajnysport.cz/FCK_userfiles/file/75430619868.pdfIn PDF document text
    • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094ad6ada562---rasinotipotel.pdfIn PDF document text
    • https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/3939dda5327df7e89dc0e58b3227228e/94782857639.pdfIn PDF document text
    • http://hillcountryawningsandsunscreens.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bd3ce024b---punotabifitu.pdfIn PDF document text
    • https://glaze-metalart.com/upload/files/vodupizizor.pdfIn PDF document text
    • https://zenkenmoshi.info/images/files/file/wofotinafejip.pdfIn PDF document text
    • http://nfrostov.ru/upload/files/53123900757.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160efef7d6d1ee---2413672208.pdfIn PDF document text
    • https://jungleflightchiangmai.com/Uploads/files/xunipabenenadorimu.pdfIn PDF document text

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