Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe6dfeebc91ef828…

MALICIOUS

PDF

53.9 KB Created: 2021-04-10 02:44:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ad1427ba2f3988690fdf69ad2f0be00c SHA-1: 23f18c3f74289d9354a52e5bab2ac564fe0177fc SHA-256: fe6dfeebc91ef82835f52f66d81dc2425d1bd8a49339c76f7dcc7acfb72ae36a
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm designed to redirect users to potentially malicious sites. The presence of a 'utm_term' parameter in one of the URLs indicates a potential phishing lure related to device setup.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8178

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://ponafet.ru/strik?utm_term=how+to+install+sd+card+on+galaxy+tab+a PDF link annotation
    • http://useporte.xyz/alimentos_que_contienen_flavonoidesiad5b.pdfIn PDF document text
    • http://farvestnn.ru/upsc_csat_question_paper_with_answersg2wnu.pdfIn PDF document text
    • http://canonsburglake.com/types_of_gears_and_their_usesbqqs2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379856/normal_5ffba78e5779b.pdfIn PDF document text
    • http://scoretdho.best/xafezupitzj92n.pdfIn PDF document text
    • http://afracheat4.xyz/kesewexewupedosoz1yuz6.pdfIn PDF document text
    • http://casser.xyz/34228815399badlc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465010/normal_5fcc8cced033b.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e6f5d25-ffc1-4b92-952c-97a9156098b9/43596070705.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32084c54-8cb1-4d4a-a8ab-18b213c79b0b/modernist_cuisine_art_gallery_seattle.pdfIn PDF document text
    • https://98e80eac-0673-4bf9-a3de-4132461903b3.filesusr.com/ugd/1acd69_e7e43101193f469aac2f1eca31de1dec.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zagubip/fanon_wretched_of_the_earth_summary.pdfIn PDF document text
    • https://91ca87c2-c493-4616-adaa-fbcec45394e1.filesusr.com/ugd/6116da_9a792624009f478d8180ca680744fbf8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/dozore/pawexilafaxi.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/39881192869.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff5a7a24-f204-41e4-9126-6b11c8ad6b75/ninejumol.pdfIn PDF document text
    • https://36fc1fe3-b646-4cc1-b6e9-de51469aea27.filesusr.com/ugd/3eb4bd_c3d5102df5ad4bc7857dfc4a017f47cc.pdf?index=trueIn PDF document text

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