Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d41342a0e6264c3…

MALICIOUS

PDF

67.8 KB Created: 2021-07-02 17:44:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 06e930898144f01d382a05ac182c4dfd SHA-1: ab05c733e7524962ce86787657d82e7b8eeb04c5 SHA-256: 6d41342a0e6264c3f98c5fcbb0fc78cac12799dbc2c33499d703783b258afce7
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is a PDF containing numerous links to external websites, many of which are hosted on compromised WordPress installations. The ClamAV detection indicates it is a phishing trojan. The embedded URLs and link farm structure suggest the primary goal is to redirect users to malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4829

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+suite+life+of+zack+and+cody+watch+online+with+subtitles PDF link annotation
    • https://forcechicago.com/wp-content/plugins/super-forms/uploads/php/files/fb6bfe7c4d4b3800b5af70addf394d5e/66989031619.pdfIn PDF document text
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/6a9d271b120c1a7fd185fdb57f066dfc/kolozebedazevinoz.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/160838c06831f9---jamoki.pdfIn PDF document text
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a751747f128---44519922808.pdfIn PDF document text
    • https://china-glass-mosaic.com/userfiles/files/20210604_085014.pdfIn PDF document text
    • http://rybarict.cz/webpagebuilder/ckfinder/userfiles/files/vodoxewiromo.pdfIn PDF document text
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/3146ac63926543d275a7acea331313de/90758478460.pdfIn PDF document text
    • https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/k6bq6b4rf8kmttd1fa95mvihnk/babokivuzagot.pdfIn PDF document text
    • https://k-newsletter.com/ckupload/files/zidadobapaxebof.pdfIn PDF document text
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160dc320e6892a---zonenopefovoruw.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbe460d876---6980009011.pdfIn PDF document text
    • http://nnrhc.com/clients/9/98/980d61ede38c9a35fe3396fb65651545/File/68298588056.pdfIn PDF document text
    • http://mevlanaasm.com/resimler/files/64188004212.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/225b723f96afc47700e262158b4fdce3/xavap.pdfIn PDF document text
    • https://samsungdvmklima.com/upload/ckfinder/files/girap.pdfIn PDF document text
    • http://alphabodysupplements.com/newerac2c/userfiles/file/zijodo.pdfIn PDF document text
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/8b7ee7648f031e4ba0493addcb2bd495/68892958335.pdfIn PDF document text
    • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/ba53b799219f97aa53acccaaca92ce0c/sofonujogesif.pdfIn PDF document text
    • https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/12d71008c96b108c3c5ba195d90e0c22/pugefomubegak.pdfIn PDF document text
    • http://urbanconstructions.org/images/uploadedimages/file/midemalefifizav.pdfIn PDF document text
    • http://kolaykanal.com/userfiles/files/80879065781.pdfIn PDF document text
    • http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a01779cefa1---tulenesoraxefete.pdfIn PDF document text
    • http://dolphinegypt.net/userfiles/file/36684800836.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16071b56ab624a---sakovafa.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080aebab6579---tugizetuwupulafutoza.pdfIn PDF document text

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