Malicious PDF — malware analysis report

Static analysis result for SHA-256 0bedc9b137d55e46…

MALICIOUS

PDF

58.1 KB Created: 2021-08-14 22:11:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 9242c426bfd20033372dca6104f73441 SHA-1: 5e8ba9d50237e86bb8f9bac97faeea9f7a78c5cc SHA-256: 0bedc9b137d55e463a456cf5cab27a2a7b7dc079e2b150bcd74797d7f7e94a70
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as a phishing trojan by ClamAV. It contains multiple embedded URLs, several of which point to compromised WordPress upload directories, suggesting a phishing or malware distribution attempt. The PDF structure and embedded links are indicative of a spearphishing attachment, aiming to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3111

Heuristics 4

  • 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.
  • 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://krisoc.ru/uplcv?utm_term=a+todos+los+chicos+de+los+que+me+enamore+1+sinopsis PDF link annotation
    • https://www.schroedersales.com/wp-content/plugins/super-forms/uploads/php/files/964a0f8afa1d99d8bf80d5b868f212a2/zoragematutisarevetobo.pdfIn PDF document text
    • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfa5d3c869---foweloduxiz.pdfIn PDF document text
    • https://ddshower.com/ckfinder/userfiles/files/87396169434.pdfIn PDF document text
    • http://www.vandiestbrandstoffen.be/uploads/files/metumeniv.pdfIn PDF document text
    • http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa66412050---fimenakosaxi.pdfIn PDF document text
    • https://fenixfalt.com/userfiles/file/jutilakibafo.pdfIn PDF document text
    • https://radiosmile.hu/upload/file/94618490864.pdfIn PDF document text

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