Malicious PDF — malware analysis report

Static analysis result for SHA-256 758e71087df6c450…

MALICIOUS

PDF

59.8 KB Created: 2021-06-18 16:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e7365b77df8b1c2154ea119b6572283 SHA-1: bbd38d605b24381a30117441cca08fab8a213601 SHA-256: 758e71087df6c450959809bd5f8719580cf0a27f2608562fd8e13fbf17a2021b
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains a link farm with multiple URLs pointing to compromised WordPress sites, likely serving as a distribution point for malicious content. The document body contains obfuscated text and metadata, suggesting an attempt to disguise its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7016

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://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/14270786678078e7e1b809e8dc62b849/maligukatumagarigerole.pdf
    • http://brenna-ski.pl/userfiles/file/zovobejixexowoxokijuvefi.pdf
    • http://adamlegal.com/userfiles/file/87667965840.pdf
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/34e7b2b8d2190532ed8a1c6f175a461d/depudimimuxezuga.pdf
    • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160860469e0b2c---71199118417.pdf
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/44bd81145420fd1d1f9c9b133c7cdd7c/nosovanurejepiwijidoj.pdf
    • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eae284110c---fowikegubixoxuselaxosav.pdf
    • http://yilip.net/userData/board/file/61481116352.pdf
    • http://seyrimerdin.com/userfiles/file/91335766696.pdf
    • http://kawoka.com/userfiles/file/sokapuvufusevuvorawemeba.pdf
    • http://aucoindeshalles.com/menu/file/73056323080.pdf
    • http://ugrctrani.it/userfiles/files/wikirerepivubugiza.pdf
    • http://carriewoodfamily.com/clients/5/5b/5b9f2fb360c4065436fb7fe1267c3612/File/rasuturadukabebuzapeso.pdf
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/24f4a55831b9843f8d80bacfd899aaf6/52296638619.pdf
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb67e3a0fe---mulelib.pdf
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/m9gg8cq5eerdha1s9jvni9ko2p/rosopeti.pdf
    • http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160719a57e2536---zapefi.pdf
    • http://mujuerp.com/uploads/ckeditor/files/20210530020546.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=lakshmi+narasimha+sahasranama+stotram+lyrics

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