Malicious PDF — malware analysis report

Static analysis result for SHA-256 37a9e701707eaf86…

MALICIOUS

PDF

67.0 KB Created: 2021-07-20 13:46:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 0edafe73e42134ad008613f74b6dc6cc SHA-1: df4c75238126a483774e1215301e9f1966a9ed7e SHA-256: 37a9e701707eaf862d941aa458066df438370a52bc0b16351d31609d5cfaa319
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous links, many of which point to compromised WordPress upload storage locations. The ClamAV heuristic identifies this as a phishing trojan, indicating a malicious intent to lure users to these sites. The presence of a link farm on disposable hosting further supports the malicious nature of the document.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3638

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://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f8e6b1385e---muxezeji.pdf In PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d4faec9f54f---84333610635.pdfIn PDF document text
    • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/ffa8f41aebc9775c542d37264a7ed098/nakagali.pdfIn PDF document text
    • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/6faee4256d893f903652d059ac3721e8/pekevikelosibux.pdfIn PDF document text
    • http://msiutilities.biz/documents/71954719031.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16081ab63d4b33---nepevefupekuvufu.pdfIn PDF document text
    • http://matstravel.ru/userfiles/file/36350281435.pdfIn PDF document text
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/0f14a79589b203a64cf68c38fed1907f/nifoginof.pdfIn PDF document text
    • https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608251a8b54e9---86156752987.pdfIn PDF document text
    • https://f27szerviz.hu/upload/files/59548016915.pdfIn PDF document text
    • http://pngroup.pl/ckfinder/userfiles/files/1661355165.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/76738536508.pdfIn PDF document text
    • http://itkaufmann.com/images/fckimages/file/39986723226.pdfIn PDF document text
    • https://pet-fashion.ro/mm/file/15888699845.pdfIn PDF document text
    • http://color-gateway.com/userfiles/file/lejifilazuxuzarozo.pdfIn PDF document text
    • http://leaguengn.com/userfiles/file///55535267652.pdfIn PDF document text
    • http://luvnchrlysenglishtoys.com/clients/861429/File/wizikatifaxilarafuf.pdfIn PDF document text
    • http://cinstech-inspect-survey.com/fckeditor_userfiles/file/vogaluwu.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/84b7d14e859108af31c4b28eb75a523f/45721316742.pdfIn PDF document text
    • https://www.olympusnorge.no/wp-content/plugins/super-forms/uploads/php/files/h8n2os8jt9spmh4gg7ji9jm1li/labepo.pdfIn PDF document text
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/4l7nubqi1occpls11h42o96upr/sedozanasifiwiveluwanup.pdfIn PDF document text
    • https://gamaconsultores.cl/upload/file/18934518908.pdfIn PDF document text
    • https://dubaimotorcycletours.com/uploaded_images/files/pebipanikogiva.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e47a2727006---67552707167.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/5bd1345e931e9293bdcbb5204ff68dd8/37612105948.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160e45c1a4cc74---sufewop.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=equations+for+satPDF link annotation

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