Malicious PDF — malware analysis report

Static analysis result for SHA-256 062e5419775f123e…

MALICIOUS

PDF

64.0 KB Created: 2021-09-01 12:33:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: cc1663e7acb4cfe0fc33452aa5fea4c4 SHA-1: 34b942b25c7a9558b7d57ec976345b8037b2428c SHA-256: 062e5419775f123e568fa3a97de7945d858f2b15a32053130bb454bf02fa3c5c
154 Risk Score

Malware Insights

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

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised CMS upload directories, suggesting it is designed to lure users to potentially malicious content. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6381

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://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bc2bef993c6---15370165602.pdf In PDF document text
    • http://studioambienteterritorio.it/userfiles/files/sikofezawu.pdfIn PDF document text
    • http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608697291fe4e---mamunuvo.pdfIn PDF document text
    • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/89e20lcb5tjqf2sls1evinkh8l/bofisom.pdfIn PDF document text
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/a24c34206ac16f41d30bac265034571c/34549063382.pdfIn PDF document text
    • http://riversedgefm.com/files/file/64311395674.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/30468768280.pdfIn PDF document text
    • http://infrabud.eu/fckpliki/file/23416753975.pdfIn PDF document text
    • https://rajakedua.com/contents//files/61999620410.pdfIn PDF document text
    • http://www.greenbriarpropmgmt.com/wp-content/plugins/super-forms/uploads/php/files/00b60fcd2b950ca7ffb69848530b9716/60480427861.pdfIn PDF document text
    • http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ff2f7342ca---kutidamujobulupul.pdfIn PDF document text
    • https://vieclamkinhdoanh247.com/upload/files/40562183418.pdfIn PDF document text
    • http://chiangmaicharmingtravel.com/ckfinder/userfiles/files/76840926878.pdfIn PDF document text
    • https://www.varishastalari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f773cc9595---bubegurevi.pdfIn PDF document text
    • http://tsrmmessina.it/userfiles/files/mobinanutoden.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608bd744a14d4---tegigenepoxotim.pdfIn PDF document text
    • https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/1m6fqjj171ugf3e7ihcmk4lakb/37081708747.pdfIn PDF document text
    • https://aquaprosmart.com/userfiles/files/rukuvosonubixamegox.pdfIn PDF document text
    • http://www.amedna.com/userfiles/files/kofiza.pdfIn PDF document text
    • http://jogforbigt.com/clients/6/61/61f7a61d17da296148a50ccd59c4a139/File/38234133609.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e4e070525---gufudibovurezu.pdfIn PDF document text
    • https://noithathoaphat11.com/upload/files/42290259477.pdfIn PDF document text
    • http://gachtrangtritranvinhtin.com/gachtrangtritranvinhtin/Images_upload/files/30823202473.pdfIn PDF document text
    • https://binarbaidfabrication.com/public_html/userfiles/file/13993720540.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=untitled+cy+twombly+1970PDF link annotation

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