Malicious PDF — malware analysis report

Static analysis result for SHA-256 694e06592e956006…

MALICIOUS

PDF

105.4 KB Created: 2021-07-14 08:45:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 5a3cd8308c638d9019f20e2b1978cd55 SHA-1: 2fe7bca3f6d1a93007abd9e21f3c14e44e0ab520 SHA-256: 694e06592e956006f7986fcfc3064f769af8155bef3aaf998be3d91e7811c7b5
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was detected as malicious by ClamAV, specifically as a phishing trojan. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting. These links likely lead to phishing pages or further malware downloads.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4011

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/57a11c71d28b3e3cf3213e27d0c5f46b/fesexub.pdf In PDF document text
    • https://susta.vn/userfiles/file/73360849221.pdfIn PDF document text
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/f0c911c20bda71d502821d85e475933f/37126201908.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/7ns2rvq3gko3demdm6a6r08s97/goxalab.pdfIn PDF document text
    • http://hzdshg.com/images/upload/File/77567223281.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609839a16a17f---bunexepozuximirofop.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/ca98608d1c5c6bb5095c146b271e24c8/59413663271.pdfIn PDF document text
    • http://pulsarvn.com/media/ftp/file/jejakafasi.pdfIn PDF document text
    • http://dla-pracownika.pl/pliki_user/File/vuxogonekalidoxelubej.pdfIn PDF document text
    • http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/ci8gkpgh60d1ih9dio6as7ahq7/32647623812.pdfIn PDF document text
    • https://thefertilizergranulator.com/d/files/46847466082.pdfIn PDF document text
    • http://senseoftourism.dk/userfiles/file/zaxilubinisirovejelafedi.pdfIn PDF document text
    • http://ztkammer.at/uploads/file/gevilovurori.pdfIn PDF document text
    • https://retta-bg.com/userfiles/sazifer.pdfIn PDF document text
    • http://zonweringbelgie.eu/ckfinder/userfiles/files/giriwagidupexoko.pdfIn PDF document text
    • https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606e492def916---28950735064.pdfIn PDF document text
    • http://seabeachthailand.com/UserFiles/file/57000079860.pdfIn PDF document text
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/4cd82f964cd536bfda53fe9bc59d189c/jewixafezufisewa.pdfIn PDF document text
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607100b861fda---besokotidos.pdfIn PDF document text
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac915ad0f37---linexavufapit.pdfIn PDF document text
    • https://interface-graphique.com/upload/editor/file/54823467925.pdfIn PDF document text
    • http://seoulsquare.com/userfiles/file/wenujab.pdfIn PDF document text
    • http://alliusie.com/userfiles/file/35943828786.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6a7643033f---73232198140.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=subjective+psychology+definitionPDF link annotation

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