Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f7006ea6980473…

MALICIOUS

PDF

63.8 KB Created: 2021-06-28 21:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 106b2b7c12f952789ca5611764803161 SHA-1: 50585423633580f774efe7f4d087ecb3b5749cd6 SHA-256: 26f7006ea698047375e6d64047ad23f90736989c87f46e45de0d39c8f36389d1
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The ClamAV heuristic identifies this PDF as a phishing trojan. Static analysis reveals the PDF functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to further malicious content or phishing pages, indicating a multi-stage attack.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3846

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://anpo.vn/upload/files/wepafusebixow.pdf In PDF document text
    • http://a2itsolutions.com/chop/multimedia/userfiles/file/kefuvimiru.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/14b48c6d9a8861b9251e5759d2db91a6/vigolaxejiwivaso.pdfIn PDF document text
    • http://spoilersmensgolfclub.com/clients/865201/File/solibob.pdfIn PDF document text
    • http://daotaoyduoc.org/wp-content/plugins/super-forms/uploads/php/files/q8e0806mkq73072l9ffii4pkot/kiwodigevige.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089dd0238f22---libijebakikovubigulupinuv.pdfIn PDF document text
    • http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6336a4a6b---punugizelobabimi.pdfIn PDF document text
    • https://gearforfree.com/wp-content/plugins/super-forms/uploads/php/files/s6bsbt7k81hshns61il8opttj8/gigifivuborinawat.pdfIn PDF document text
    • http://simmsfamilyreunion.com/clients/9/98/98d47f1658d09d39d77ba56043454c9c/File/93361309175.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077e2d97a20f---43267822099.pdfIn PDF document text
    • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/a7q83063d819n0qfvgiudtqg2r/mobomositadadarude.pdfIn PDF document text
    • https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/a3c0510f60c54a3a8aecc8b5496b4b23/lerasofupamenidoguxaluko.pdfIn PDF document text
    • http://gagutp.com/sa_upload/userfiles/file/20210514081616.pdfIn PDF document text
    • http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/43771224729.pdfIn PDF document text
    • https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c58d2098d74---39583194527.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086a31c4efb3---nuvixifurajuk.pdfIn PDF document text
    • https://portsidestrategies.com/wp-content/plugins/super-forms/uploads/php/files/b76d5942961b7784879cea91d8fe8f1b/lenikapokanepefaz.pdfIn PDF document text
    • https://arket.io/wp-content/plugins/super-forms/uploads/php/files/34baqmrh5nj6qq6imd2ilt82oe/1327957620.pdfIn PDF document text
    • https://www.dolphinrfid.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4c948134c7---gidepumesigiwizizexejo.pdfIn PDF document text
    • http://www.grupohk.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c3039643207---72420463577.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607a92555f385---19736715108.pdfIn PDF document text
    • http://zpb-maciejewski.pl/upload/fck/file/88391471046.pdfIn PDF document text
    • http://archissimo.eu/userfiles/files/rajobilogego.pdfIn PDF document text
    • https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/7f356524f1c32c35844190c981d5a25c/8293168467.pdfIn PDF document text
    • https://realestateconnect.biz/wp-content/plugins/super-forms/uploads/php/files/kjcav7cnll980uasnihqppadl7/65450158557.pdfIn PDF document text
    • https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/1640513a38cfd114e21f5e0032383277/jumugelokoxefefoxaluto.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=peripheral+giant+cellPDF link annotation

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