Malicious PDF — malware analysis report

Static analysis result for SHA-256 d394e5979e8e0903…

MALICIOUS

PDF

62.3 KB Created: 2021-08-18 01:50:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 81d93cc5d01313b0d6e17cf1e4fadb69 SHA-1: e6613ccae5b6fb47b12c0098ccf6ccd9e700c4b6 SHA-256: d394e5979e8e09039aad4534bb2b2b1a465560b4b44e5a120f98e0f8ec44f67f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of external URIs and the nature of the links indicate a phishing or malware distribution vector, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6913

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0689160739---wagutodugerimale.pdf In PDF document text
    • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/9a36a605634fdec545a4951ae0dc3a53/duletavira.pdfIn PDF document text
    • http://jandenzobv.com/image_uploads/file/dudisinador.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d47e2dc38---48016830314.pdfIn PDF document text
    • https://accu-split.com/userfiles/files/fegelorilulixiwuxozoso.pdfIn PDF document text
    • https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/fbro123k8289ru464hdvcb8cbb/nejagitozirosa.pdfIn PDF document text
    • https://cecprint.com/images/file/tunupanofi.pdfIn PDF document text
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/d144304a81d0354049ebaf245bd9b99c/zonilix.pdfIn PDF document text
    • http://mosvag.ru/img/lib/file/gozorasibu.pdfIn PDF document text
    • https://topjobsnepal.com/ckfinder/userfiles/files/70596304673.pdfIn PDF document text
    • https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f34fa7d9520---relagavefudi.pdfIn PDF document text
    • http://dh-cell.com/ckfinder/userfiles/files/totagitasepanogarunapotul.pdfIn PDF document text
    • http://soft-pro.hr/upload/datoteke/girutoxiralupaxebodajulol.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/508c0c327bc3fe8942737c28e30175ef/tegumirigupita.pdfIn PDF document text
    • https://alternativecarrepair.com/userfiles/file/54956827666.pdfIn PDF document text
    • http://seabeachthailand.com/UserFiles/file/wemimubub.pdfIn PDF document text
    • http://charmingcurls.se/upload/file/54620353743.pdfIn PDF document text
    • https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/6802795c64bec2ad06308f4c4de84936/lipasezoniloposuj.pdfIn PDF document text
    • http://slenderclub.cz/ckfinder/userfiles/files/87511271808.pdfIn PDF document text
    • http://www.lugashotel.com/data/editorfile/mojatagufonexe.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160769a2cc1db0---vevawesugofonuxa.pdfIn PDF document text
    • https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/5lqqghf2tpq98mpqfqii2rq0e8/ladabox.pdfIn PDF document text
    • https://www.bocamviglieIn macro / runtime command snippet
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=sir+william+borlase%27s+sixth+form+open+eveningPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.