Malicious PDF — malware analysis report

Static analysis result for SHA-256 abf9d4983780bc25…

MALICIOUS

PDF

106.8 KB Created: 2021-06-20 22:06:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: bedcc47102e95c81057ece24d3e0a34b SHA-1: 9957a670ae1fb6c584219f02d69d5b0e268aec09 SHA-256: abf9d4983780bc259b651e44316a57dd56bebdd6e8ca59787c5520ba424a1289
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to external websites, many of which are hosted on compromised CMS platforms, suggesting a link farm or phishing lure. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier's high score further indicate malicious intent. No scripts were extracted, but the overall structure and URL distribution point to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6134

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://davisfolk.net/clients/1/1f/1f1070e31f35868a9a13f38ee7dc887f/File/32425256883.pdf In PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/sfr0dd043ncljfd7ugpgf8rcn6/54045232756.pdfIn PDF document text
    • https://zemiigori.com/uploads/file/35696104030.pdfIn PDF document text
    • https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/km751c61a6seef1gjks1he71mh/9347681885.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609db31bd7d43---69315492306.pdfIn PDF document text
    • https://daxitrip.com/basefile/daxitripcom/files/75852174104.pdfIn PDF document text
    • http://baigeleather.com/userfiles/file/75548641031.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/6ae072f1f691c13951dd7250a98c911f/runisibavesive.pdfIn PDF document text
    • https://anmimar.com/royal/userfiles/file/retamugezilodipolexez.pdfIn PDF document text
    • http://www.conectadoscomdeus.tv/arquivos/file/nusigetusabutavawo.pdfIn PDF document text
    • http://99hospitalitygroup.com/ckfinder/userfiles/files/jugazirigivazij.pdfIn PDF document text
    • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d61127a859---tinawi.pdfIn PDF document text
    • https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/9c4397a887361e2a39f3da05443dc71b/wefasisizatufepebinusov.pdfIn PDF document text
    • https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/ft8rm2v633a4827sp328qpck4v/gebuza.pdfIn PDF document text
    • https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/4b86acoq0p1rbp34jqbplf3qu5/nokuvelewisorivugusuzu.pdfIn PDF document text
    • https://elitestrategyglobal.com/wp-content/plugins/super-forms/uploads/php/files/984cd894a77a29a997cd5768026cc7e5/71764910891.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=21+secrets+of+self+made+millionaires+pdfPDF link annotation

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