Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3a019bf44bfdac…

MALICIOUS

PDF

61.2 KB Created: 2021-06-20 10:22:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 08b791f6276467adcddc17d105c1a265 SHA-1: abaa10b63db99d3ba36727b752da7808b2300d88 SHA-256: ed3a019bf44bfdac8375ff0e6b2d77b09ee9a5526a70731a6808f44ebb08adf7
154 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting it functions as a link farm. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the document is designed to direct users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6759

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://queure.ru/uplcv?utm_term=ingredients+for+fortify+alchemy+potion+skyrim PDF link annotation
    • http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7d5d3a41c---ganufovafibijumokabegizux.pdfIn PDF document text
    • http://tutaylamhet.com/storage/ckfinder/files/26064634341.pdfIn PDF document text
    • https://ready4use.ru/uploads/files/dixekovofu.pdfIn PDF document text
    • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/0d63c0f8e7a8eef2fb261b77f29691cb/gurisiwifidusofa.pdfIn PDF document text
    • https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/bjcmtjvregqhfk0mkp9cd9eoa9/75358680648.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/pqvcqa93bc473k425nev4oh18f/63622189199.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073bcb91c081---58746149976.pdfIn PDF document text
    • https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/5baa1e06a3bb260da61be002b13740fd/43906763195.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086181d64332---vamimiliz.pdfIn PDF document text
    • https://digicpictures.com/downloads/65581266051.pdfIn PDF document text
    • http://dakmoto.cz/obrazky/file/nenexuraxosu.pdfIn PDF document text
    • http://www.anjhimayath.com/upload/file/xomatolibapor.pdfIn PDF document text
    • https://www.travelticket.com.au/wp-content/plugins/super-forms/uploads/php/files/6qno79bbbbf2klu8sllihf47rt/kutomuwalabufu.pdfIn PDF document text
    • http://nguoigiupviec99.com/webroot/img/files/35824337007.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/77dc47290e1daddc9e20f1c839bfd6bf/15202748424.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.