Malicious PDF — malware analysis report

Static analysis result for SHA-256 021e808cf54e8711…

MALICIOUS

PDF

58.5 KB Created: 2021-05-10 19:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 822142dc21d1bf890574d57d565c5fcc SHA-1: fb86f75949acff62b780fc16e2f769f8d299cdad SHA-256: 021e808cf54e871122db34e207c5590d4f274448e00aeb4b0c3d495d2276fa14
124 Risk Score

Malware Insights

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

The PDF file contains multiple links pointing to compromised WordPress sites, suggesting it is designed to redirect users to malicious content. The ClamAV detection and ML classifier flagging indicate a high likelihood of malicious intent, specifically phishing or trojan delivery. The embedded URLs are the primary indicators of compromise, likely leading to further stages of an attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7499

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://smidgel.ru/uplcv?utm_term=email+template+for+asking+information
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/c2e160ee6c6693b86e6a50edbadf43a5/95440896242.pdf
    • http://all-pass.com/folder/editor/file/norosopadogaxoj.pdf
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/377c40f2c1944fbae40cd7b13e5adedb/43440634728.pdf
    • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608768c56ce6c---75604691250.pdf
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/d6tvatrvlul8al3i3tsnmkdqff/giritanivasibe.pdf
    • http://alnadaoil.com/userfiles/file/31176881494.pdf
    • http://andreevmag.com/wp-content/plugins/super-forms/uploads/php/files/a7012fed417c0a84df4ede366b9d3317/nawezojipe.pdf
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/1ebd7b62eac61b282f156d09e79beb8a/xurapumozikux.pdf
    • http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fb7b0a9fa1---vixukone.pdf
    • https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16088c7291ef72---1154513109.pdf
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d31755647f---vizepar.pdf
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608dcccd7158a---sofunamovigifegalurof.pdf
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608681cdd87de---44274124977.pdf
    • http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075fa395d0be---mawowusekexe.pdf
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/c824131c5ba160b899d5feb782e7394a/31941938635.pdf
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0068b0be1---zizezeravogi.pdf
    • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160942301184f4---62581133701.pdf
    • http://banghaija.com/userfiles/file/pokonagavajenowufuxivid.pdf

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