Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a79e30442a6410e…

MALICIOUS

PDF

61.0 KB Created: 2021-03-01 09:07:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 38986a8a208c24ba912e8bf80fc40d12 SHA-1: c5b90a2d04d567ca5c192efadfa0dc33a6c7b82e SHA-256: 4a79e30442a6410e271576a25407a9370475197dd06d4167cb52d9f04d690f3d
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple embedded URLs, with one prominently featuring a product name ('casio g-shock dw-9052gbx-1a4') and directing to a suspicious domain. Heuristics indicate the PDF is part of a link farm hosted on disposable domains, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6808

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://gimoguvi.ru/award?keyword=casio+g-shock+dw-9052gbx-1a4 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4416327/normal_5fe29e602a466.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457573/normal_601486060153d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495251/normal_5ffe48be47f54.pdfIn PDF document text
    • http://fixalab.22web.org/wosenefivekexemolelupif.pdfIn PDF document text
    • http://dofoten.22web.org/toyota_avensis_2002_owners_manual.pdfIn PDF document text
    • http://sukutoxuwurif.mywebcommunity.org/tasofizazezalivunej.pdfIn PDF document text
    • https://cdn.sqhk.co/sukurorezib/P7agfYc/managing_oneself_harvard_business_review_classics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490736/normal_5feb8a1e78206.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386347/normal_5fe84726adef5.pdfIn PDF document text
    • http://povumuvepu.epizy.com/moneybagg_yo_dice_game.pdfIn PDF document text
    • http://lepejojesel.rf.gd/daily_task_planner_template_excel.pdfIn PDF document text
    • http://lifosodutevofa.epizy.com/60931525280.pdfIn PDF document text
    • http://xobibaga.myartsonline.com/zibatobepifuninajovotagis.pdfIn PDF document text
    • http://bamemuwibe.epizy.com/nims_ics_100_questions_and_answers.pdfIn PDF document text
    • http://safewunenowo.epizy.com/657184134.pdfIn PDF document text

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