Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca9632bedcf27ae2…

MALICIOUS

PDF

72.0 KB Created: 2021-10-07 19:14:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: 224f874b706548d8fa350dce477c4ee9 SHA-1: ff59ce7597cf58508f46ea9b73726be579026af8 SHA-256: ca9632bedcf27ae2048c333670e2d46863116e423ca3afb37a5ba0c570083500
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are hosted on compromised WordPress installations and utilize SEO-focused keywords in their URLs. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. The document's structure suggests it functions as a link farm to direct users to other malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6947

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://garglob.ru/uplcv?utm_term=royale+book+of+colours+pdf+free+download PDF link annotation
    • https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/e1cdd523bcfb51b9cf36df44edaa6c28/zekudowebidivazedevirikom.pdfIn PDF document text
    • http://ikra-ekb.ru/files/fckeditor/file/kakijuk.pdfIn PDF document text
    • http://paneldeconso.com/userfiles/file/14581828567.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/u3l9ctvgg6gicvjk17qmuejtt8/10486846123.pdfIn PDF document text
    • http://nasfthr.com/userfiles/file/jafuvito.pdfIn PDF document text
    • https://hanomanberjaya.com/contents/files/nakanerironewi.pdfIn PDF document text
    • http://ptaki.info/imgekoprojekty/files/mizokekaloxonivoduxi.pdfIn PDF document text
    • https://galaxy-training.com/userfiles/file/32684202825.pdfIn PDF document text
    • http://kawana.tech/userfiles/file/90259313168.pdfIn PDF document text
    • http://nicolalazzarotto.com/userfiles/files/97986435612.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/493b4f1a1ad776944fc597a2743ebf84/37079546699.pdfIn PDF document text
    • https://guclupin.com/calisma2/files/uploads/10177911615.pdfIn PDF document text
    • http://kebirbeton.com/userfiles/file/wumidexaru.pdfIn PDF document text
    • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/7432f0e0bfb0f945e6f70c63b51df1a2/61469632236.pdfIn PDF document text
    • http://firmykominkowe.pl/Obrazki/edytor/file/34680170792.pdfIn PDF document text
    • https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/00a5e32d86180a2ee45bc0e263857875/49692779298.pdfIn PDF document text
    • https://xn--q3cceuw0c6ab0d2ii.com/upload_file/files/niwoturabika.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/3ibj8j4tst8c6hoiaumk6i8mq2/44621806794.pdfIn PDF document text
    • http://studioingegneriavaragnolo.com/userfiles/files/59259117060.pdfIn PDF document text
    • http://boston.pl/fck_pliki/file/53175765436.pdfIn PDF document text
    • http://pc-driver.ru/userfiles/files/36896914823.pdfIn PDF document text
    • https://digitaldaya.com/imagenes/file/73735626554.pdfIn PDF document text

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