Malicious PDF — malware analysis report

Static analysis result for SHA-256 61b2205539f40e66…

MALICIOUS

PDF

58.6 KB Created: 2021-06-23 21:08:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cf51cc55d1e1184c6cf0a9110817d440 SHA-1: 2c9df67323f8d401f649cd1c54f5e9560ccdd52a SHA-256: 61b2205539f40e66af0e9a4395a28f237bc719b32fe6d50f5bbc9c85c7345e4f
154 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The presence of multiple PDF download links on potentially compromised infrastructure indicates an attempt to distribute further malicious content or phish users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6956

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 http://dribblebar.pl/userfiles/file/88786263642.pdf
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/160afc4686014a---99414286458.pdf
    • http://creativeindustries.ru/uploads/userfiles/file/21671368333.pdf
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/83744422a614c134e5e972bea473af97/34152376467.pdf
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/7c5l3a7is4tiqgfl3etc2u5k30/makoboxuwebepimosewureg.pdf
    • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/89v3q5dmd8rp6d5v4rv3bo8b5h/vavajisujalilovoleginu.pdf
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d46e3c610c---13507074264.pdf
    • http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a8f0b3a23f---49355602874.pdf
    • http://akkoryazilim.com/userfiles/file/sixebed.pdf
    • http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074c4aaa2556---mawesa.pdf
    • https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/9295150fcc3c9265a2923ff3cdf76541/25433352627.pdf
    • https://jerseyshorepirates.com/userfiles/files/28934060977.pdf
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c11e09a65ef---90543447445.pdf
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/2b87dc2a6ed20fa1c2b5bc15c054aa0a/94809392592.pdf
    • http://littlepearlbooks.in/data/eimages/file/zijonoteposugufi.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=atlas+of+gastrointestinal+endoscopy+pdf

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