PDF malware analysis — malicious · 21acfe529a767f14

MALICIOUS

PDF

207.6 KB Created: 2021-05-26 05:41:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 058d5013400a608c038df68003464fc7 SHA-1: f28f5ce922cd3367c61d0714ecbb874efb57a691 SHA-256: 21acfe529a767f149869a6ce893fc0f4de437cdcf88e350373b7696e1eda984d

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9647

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://queure.ru/uplcv?utm_term=cuales+son+las+causas+del+fin+de+la+guerra+fria PDF link annotation
- https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/107560d6d37dcd6276237e83a6727107/25070733.pdfIn PDF document text
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609f4d601924d---44904498344.pdfIn PDF document text
- http://objetivovender.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089f9528dfeb---30161358614.pdfIn PDF document text
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/16090e1e39bd82---71443712290.pdfIn PDF document text
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/0dm95uej00heufi6bappjjlvum/6996993037.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609a56fa85a81---1830457666.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/o1qtdlkn7ggg0nleol0ivsg7u0/72769544050.pdfIn PDF document text
- https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/dcb9b958da0e61d49dfa69e549245931/18462024591.pdfIn PDF document text
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160822a5b67cf9---zuzivigegelonosarid.pdfIn PDF document text
- https://www.qlsny.com/wp-content/plugins/super-forms/uploads/php/files/da1fad2a3aeae6f527b888e7bb234b3d/xunopufidesegomivavudixuw.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a5d4bb7059d---xadesezuvugete.pdfIn PDF document text
- https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/f8305a93312f6d5ed837f9c6848e4343/rarerumetodikimuxuzilum.pdfIn PDF document text
- https://avonsteel.com/UserFiles/file/wipujonokiredum.pdfIn PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e6677e77dc---69639979080.pdfIn PDF document text

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