Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd14511181aefe8f…

MALICIOUS

PDF

57.1 KB Created: 2021-05-16 18:03:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: cf2e4a2143689c561f8fa39c5606dd76 SHA-1: 122deabff17247689f6a87ee52cc39af824bd9c9 SHA-256: cd14511181aefe8f4160c7b3ef7f9dd3daa4e762e631d71533f74df1cfa8ab2e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with a phishing lure or a downloader for a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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 http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1609867667f6cc---62526017757.pdf In PDF document text
    • http://augustaelectricalwork.com/editorData/file/visinidejepoka.pdfIn PDF document text
    • https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/5kss5jq6r3vv3p6u5e569vbpf2/jozuwumazis.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/deb4d392ab40f8196d99165bc5a69e2d/70797617579.pdfIn PDF document text
    • https://cowichanseniors.ca/userfiles/file/35460617813.pdfIn PDF document text
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/scgd2g070rtb1ts2fpm802fnu1/ditadam.pdfIn PDF document text
    • http://jrpst.pl/userfiles/file/fukifabagodoxebonamiz.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/jouesvmk91c661lt5ipv8ol7c2/35435409181.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16084b1452549f---64667997593.pdfIn PDF document text
    • http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e3d00e0f85---44628597129.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606fffe6a46b0---pigeme.pdfIn PDF document text
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c57976f54---ripijamajorepisirutesovav.pdfIn PDF document text
    • https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/cf462bd3780b5170e1d8b372856091bd/depuxoz.pdfIn PDF document text
    • http://kompletucetnictvi.cz/files/file/xogaduwaxopipugorirutoxad.pdfIn PDF document text
    • https://nnkcreations.com/userfiles/file/68255005411.pdfIn PDF document text
    • https://suemsas.com/wp-content/plugins/super-forms/uploads/php/files/c7bkq4t55f9ha1tla7nue4e6b2/87875617873.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=knuckles+chaotix+sheet+musicPDF link annotation

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