Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeba785408318ec2…

MALICIOUS

PDF

51.7 KB Created: 2021-06-05 18:45:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e7cb37de834005ffafd553dc2117eaa SHA-1: 0822152fe32c7e4b54dbd119973a1510493bfaa8 SHA-256: eeba785408318ec2f31aa4ce1021530c31eeb8757634559f54ffa433d984ac92
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 indicate a malicious PDF, likely a phishing or trojan variant. The presence of embedded URLs and the overall structure point towards an attempt to trick users into downloading further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7183

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://catamma.ru/uplcv?utm_term=download+romantic+novels+pdf+in+urdu
    • http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/ghq2vep74i7vtsr8368gltp3i0/goxosixozidadalesasi.pdf
    • http://kingalbertltd.com/uploadedfiles/file/76304991278.pdf
    • https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/9592e6eced1dc0682d034d68a054cfc4/puvozerar.pdf
    • http://singer-island-condos.com/userfiles/files/migugoburekab.pdf
    • http://amoy-art.com/Upload/file/febinav.pdf
    • http://bfr-bialapodlaska.pl/userfiles/file/69802640732.pdf
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc03a6aac7---pemokotifipexux.pdf
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/e829931a93241af9b46d36b9457263e0/5896986608.pdf
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b05dacb170b---kumonenusawozalog.pdf
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/6e531234b4f71514ccdad11c3e88648e/pifibupev.pdf
    • https://pensiuneavlasin.ro/wp-content/plugins/super-forms/uploads/php/files/rualpv5e7fi2m458a2eu2hil8p/33421848500.pdf
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ad9b3e3c381---92149925769.pdf
    • http://ats-dz.com/userfiles/file/liwoxadejij.pdf
    • http://glotecgh.com/upload/editor/file/93229356630.pdf
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944d01d750e---94836182938.pdf
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/ca17bbed7abb1c225820c9185c9cd3d1/lifusufidam.pdf