Malicious PDF — malware analysis report

Static analysis result for SHA-256 7471122e5565db24…

MALICIOUS

PDF

59.9 KB Created: 2021-06-08 11:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 64d2232a14bcd28ecaa76c194661bcfe SHA-1: 04dffd6917832b877347b2532eda33c8a59def1f SHA-256: 7471122e5565db24f4a605e3fe911c7ebe32b2129c00b86abb4f65eb0df29569
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains multiple links, many hosted on compromised WordPress sites, directing users to download further malicious PDFs. The document body, though heavily obfuscated, appears to be a lure for a "strategy toolkit download", suggesting a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9363

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://huntic.ru/uplcv?utm_term=playing+to+win+strategy+toolkit+download PDF link annotation
    • http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/la7n85hq9kdsora6qh530jjnul/rusoxagewez.pdfIn PDF document text
    • https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877c0c29f47---50152753709.pdfIn PDF document text
    • https://idd.no/ckfinder/userfiles/files/76808571705.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/caf500c6591ed4362f715ad6b7a019b2/kodabuvoj.pdfIn PDF document text
    • http://jrmhandling.nl/upload/file/jivalinonul.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160848ee6a64e5---10326445185.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/6e7f9d5ad1a36d408578dad2c103516d/doxexudenujotudoxogo.pdfIn PDF document text
    • https://kogan-photo.ru/wp-content/plugins/super-forms/uploads/php/files/49d3f0654ea9326922969befbbdade2a/91464986416.pdfIn PDF document text
    • http://aucoindeshalles.com/menu/file/bamixowogefigaxifimimeja.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607296e54f99c---mepako.pdfIn PDF document text
    • https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1609320d213fa5---73447371971.pdfIn PDF document text
    • https://ijpdua.com/contents//files/xewodajikipemo.pdfIn PDF document text
    • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/c9e951222918253021ea106fc7f31777/bixikagututupid.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/ed1c86cf6d64eee1bcc02694bac0c416/55801677419.pdfIn PDF document text

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