Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f3262ad9c9942bc…

MALICIOUS

PDF

72.1 KB Created: 2021-09-07 10:38:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 706123fc599cee18b1581ede14c8c3af SHA-1: d1ba85a1df57d54573ea45ae9f69741d7a163b1a SHA-256: 1f3262ad9c9942bcd5f91cbaf7b598e8f56c0dcc29c4264d0a11c867e55eee77
124 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment. The document body is unreadable binary data, providing no direct content clues.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3566

Heuristics 5

  • 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.
  • 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.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608b34b10b088---pevibisokud.pdf In PDF document text
    • https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/ef2ef9337a151bb4a9916806d21c5548/34396588027.pdfIn PDF document text
    • http://ceskylakros.cz/userfiles/file/74962840342.pdfIn PDF document text
    • https://cerquilho.sp.gov.br/public/admin/globalarq/uploads/files/roveruwi.pdfIn PDF document text
    • http://stin-verdon.fr/assets/Image//files/1232573723.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ed4bb4a604---jifita.pdfIn PDF document text
    • https://aeternoplanning.com/ckfinder/userfiles/files/30303728623.pdfIn PDF document text
    • http://moscowprice.com/content/xuploadimages/file/sabuvuvev.pdfIn PDF document text
    • http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/10465374401.pdfIn PDF document text
    • http://quiltingacademy.com/fckeditor/userfiles/file/30746914442.pdfIn PDF document text
    • http://maydemtienvn.com/upload/files/83590806078.pdfIn PDF document text
    • http://kientrucphatloc.com/upload/files/pogobinutusazozopid.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/161134d5f627fa---61463795987.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/0dd56cdb693c1ff0593981ad37a35e22/doxijofekida.pdfIn PDF document text
    • http://koreadramatour.com/FileData/ckfinder/files/20210823_0296026F4607A5A8.pdfIn PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/15b9b68fac5a013455b89e40ea77d62a/76748085864.pdfIn PDF document text
    • http://kme-kme.cz/files/file/36709507989.pdfIn PDF document text
    • http://isdoor.ru/uploads/files/naganepoje.pdfIn PDF document text
    • https://wineuniverse.us/userfiles/file/vefudirifilifipa.pdfIn PDF document text
    • https://orig-shop-gsm.ro/ckfinder/userfiles/files/20936745896.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1fc80518f8---14737888491.pdfIn PDF document text
    • http://galettedesrois.hu/userfiles/file/bunowiduriranor.pdfIn PDF document text
    • https://www.waterlooarmsnewforest.co.uk/wp-content/plugins/super-forms/uploads/php/files/13b2f4719fbe53e2ef9b250aceab950d/buwulu.pdfIn PDF document text
    • http://zubrcup.by/files/files/mirosanevupisuxelew.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=pdf+il+visconte+dimezzatoPDF link annotation

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