Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a3bed0bd032e50…

MALICIOUS

PDF

56.7 KB Created: 2021-06-11 15:16:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 6b3364081457e6958d1532fb5904d1c1 SHA-1: 57ccf9990b62cc6e75bbfe40545a92eb41bb07da SHA-256: 30a3bed0bd032e50b3280d9dfd2dac0dfd2380e8de445f02acf80f5df93317f7
154 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to compromised WordPress upload directories, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded text and URL parameters suggest a lure related to 'decision making and problem solving strategies pdf'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9022

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://allytemp.ru/uplcv?utm_term=decision+making+and+problem+solving+strategies+pdf PDF link annotation
    • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/7j5ucbj2mos79kv58s60qfa4lm/dorobozajimazaxalab.pdfIn PDF document text
    • http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e203d1b421---2920983436.pdfIn PDF document text
    • https://adikkeempat.com/contents//files/88063566593.pdfIn PDF document text
    • https://cald-lighting.com/wp-content/plugins/super-forms/uploads/php/files/a273da70e9e26f7946659df06ad6e34a/xotijogeruxasuxufexona.pdfIn PDF document text
    • http://reelproductionshd.com/userfiles/file/10426786308.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/tomcs82avureee9cqmtsle13f4/rofafavepu.pdfIn PDF document text
    • http://anatolianlgs.com/userfiles/file/luzojoxu.pdfIn PDF document text
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/lvnl2qo1cci3jbf6gcajdaod06/xexifetom.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/7kkv8nbh0iq39c5n30vg77pep0/matomeguwi.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099820c4f6b1---puluzupuf.pdfIn PDF document text
    • https://activepymes.com/pub/file/73279771231.pdfIn PDF document text
    • https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/21da01ca90a5a34a3765d56c99304a93/dakegaxuj.pdfIn PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/50981426392.pdfIn PDF document text
    • http://sooclose.eu/upload/File/rigejobugajuso.pdfIn PDF document text
    • http://pnmanagementsolutions.in/uploads/21787433323.pdfIn PDF document text

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