Malicious PDF — malware analysis report

Static analysis result for SHA-256 02f47ab9cb1a9f78…

MALICIOUS

PDF

62.6 KB Created: 2021-06-07 13:11:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: e561cf1617c39ee9fcb47ea225fb039a SHA-1: 221b81a3f3d75f2c39e9e3f3f19aa81bb0a8e4e3 SHA-256: 02f47ab9cb1a9f78c87f2436ac107b0e700c88001e2a9f86d58c31fcf5ccfebe
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations. The document body, though heavily obfuscated, suggests a lure related to popular media, likely to trick users into visiting these malicious sites. ClamAV detection as Pdf.Phishing.Trojan indicates a phishing or trojan distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6601

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://inwebjor.ru/uplcv?utm_term=the+amazing+spider+man+google+drive+mp3 PDF link annotation
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16079a559e9246---sebudovogobujetolurixiwa.pdfIn PDF document text
    • https://www.llgnjinc.com/wp-content/plugins/super-forms/uploads/php/files/7a9d94c8fe21931ca7514b9807da8f6c/tufimapesixenev.pdfIn PDF document text
    • http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff2b91748e---mabatidawapulomufun.pdfIn PDF document text
    • http://buergerforum-tirol.at/file/39730043166.pdfIn PDF document text
    • http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/brtrdcpub6ioqln91rfas7rcq4/tidir.pdfIn PDF document text
    • https://riverasphotovideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608327adae5fd---pipewofuwumitesorijo.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6342b4b982---xolut.pdfIn PDF document text
    • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609f76fa8667e---397048616.pdfIn PDF document text
    • http://skogsformedling.se/bilder_umeny/File/gisosotuguzowidebigeputu.pdfIn PDF document text
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160856229f0323---nenupefasodoxiragi.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160781a72a67e6---18262234362.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b147ddbbc07---34467036942.pdfIn PDF document text
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/9a5b1e2849508aa0137cef1ba9ca5f96/51198888249.pdfIn PDF document text
    • https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/bbf634a3b124fdfdde79b0a777c5bdff/70560281719.pdfIn PDF document text
    • http://aire-limpio.com/img/editor/file/kubezazuvivunatutega.pdfIn PDF document text
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/mnpttkrfh8ibiqaj53cu234ild/84301528832.pdfIn PDF document text
    • http://bluekeydigital.com/images/pic/file/lilikurifososixeputixozet.pdfIn PDF document text
    • http://poiskvod.ru/images/file/nidozorabepetawasijewi.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/ste74nhecong7nplil4rer5166/vulisexikak.pdfIn PDF document text
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609631d6df8b0---55222394004.pdfIn PDF document text

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