Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1086bd151583a4c…

MALICIOUS

PDF

848.1 KB Created: 2021-06-24 04:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 776e1c03672b55953262d239302f1cfc SHA-1: 555391beff6e757d0d4821f40d2ba95c6bea0f5a SHA-256: d1086bd151583a4ced0da0f6c0f6574e4ce52fcce2c79f1e3ce02425a0b2499a
124 Risk Score

Malware Insights

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

The sample was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains multiple links pointing to compromised WordPress upload directories, suggesting it is used to distribute further malicious content. The PDF facts indicate it's a link farm, likely intended to lure users into downloading a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8776

Heuristics 4

  • 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.
  • 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://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/c5fd2eb8c2288ae394573d8fcecd057c/55259971588.pdf In PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609799429dbf0---17231508619.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609edf2648aea---boxeraponojenurotivalikis.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/4778db2b510fbf0e30de117325662edb/viwizegaderurop.pdfIn PDF document text
    • http://lapenya.cat/imgjovesnaves/file/dejobumivowes.pdfIn PDF document text
    • https://alakharia.com/public_html/userfiles/file/8324648065.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4cfaab0fef---67584561072.pdfIn PDF document text
    • http://benardoutlite.com/admin/fckeditor/fckdata/file/visogolibe.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c03a605a07---dakemixesuzow.pdfIn PDF document text
    • https://davebakeragency.com/wp-content/plugins/super-forms/uploads/php/files/db2152d869020085b004f5673dceb6e6/25640191625.pdfIn PDF document text
    • https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609de7d8b7842---kitixupogedadumogebama.pdfIn PDF document text
    • http://poslovniimenik.net/firme_data/files/20864546203.pdfIn PDF document text
    • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607a60b8d986f---82200544777.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=vdo+c08c+manualPDF link annotation

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