Malicious PDF — malware analysis report

Static analysis result for SHA-256 17dc446da3ed664d…

MALICIOUS

PDF

66.5 KB Created: 2021-05-05 05:24:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cbf21a1db42cf9bf0e20e00cc310d61f SHA-1: 71f0a2add4915864a55d1816bdc32cda2ab32c0b SHA-256: 17dc446da3ed664dfc31ae1aaf30802ef9764a572c63aafcb9335892f6c4d465
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs 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 for phishing or malware distribution. No scripts were extracted, but the presence of a link farm is a common tactic for initial access.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7605

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://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9b7978931---88815341945.pdf
    • https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/4c1d239573c85b543ca0164684b96e35/gawekipewigeboz.pdf
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/domfp29ddkt3u0qv45qfu6rdvn/51875270701.pdf
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c902367f8d---vovotusibupitafisotexobuz.pdf
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16077aa5344c0c---60917382169.pdf
    • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/pmopsg8np6oprbkjkd6r7cgka7/joxilofomo.pdf
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16076c0c5c890f---74094274412.pdf
    • http://agendatourvietnam.com/hinhanh/file/guwuxamidolapariroxatax.pdf
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/7119178b3bfc00d318354d8530b0c92c/72448012427.pdf
    • https://bechtoldpaving.com/wp-content/plugins/super-forms/uploads/php/files/cd29435c17a5f534707c82bffd4b8c0c/nifokufoxopisufu.pdf
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086224319703---zolewusunomoko.pdf
    • http://www.greenbriarpropmgmt.com/wp-content/plugins/super-forms/uploads/php/files/f35872c0d27bc0cf47fb54f96a628bf8/buxozalaluguxiburesovo.pdf
    • http://maychamsocda.vn/images/userfiles/file/jizebotesigegagawumexixof.pdf
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160861f8d84d39---83885134113.pdf
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/6d5ffcea7a24616c4bc66252ff375951/12589572678.pdf
    • https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d878655ee4---59608610031.pdf
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16075e9da8a381---32675206921.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=showbox+android+tablet

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