Malicious PDF — malware analysis report

Static analysis result for SHA-256 04e2878a89e7ca50…

MALICIOUS

PDF

58.7 KB Created: 2021-05-10 15:06:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ec9d2edf353ce1d7c6969c2f23019b4 SHA-1: e345f38d48e2e39b742a2c3d4933f1d32770b598 SHA-256: 04e2878a89e7ca50e2929310dad17ccd3d246ca600c0cd746bdabff251fbafd5
154 Risk Score

Malware Insights

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

The PDF file contains numerous links, many of which point to compromised WordPress sites utilizing vulnerable plugins like FormCraft and Super Forms. These links are likely intended to lead users to phishing or malware distribution sites. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9548

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 https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16086ce7001940---65084769954.pdf
    • https://www.charroninc.com/wp-content/plugins/super-forms/uploads/php/files/f63cdee53b74b1da44062475f20f02f3/bajitonewivituwomexepe.pdf
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c14ff93ad4---fudosepisepufafarekav.pdf
    • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/d192750adde8d12f3cec301858fdd11c/79761337997.pdf
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/ab45e0f2e076d0cbda050d52134c2bf2/wosokukerifewotabodunukag.pdf
    • https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/3c6ed696721a175153d3860c0be3fdf7/vadago.pdf
    • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/gmn5lpbhd4ki5u4d5lh28ovug2/88901006686.pdf
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/16070356a7aaa6---14033263227.pdf
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/aa0200392c469dcb288763e179c564b1/22009332871.pdf
    • https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/bj18ef24qm3p0ue8bkvli5c54d/14709637451.pdf
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160813c737a9dc---jezijitases.pdf
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/0rrkkeiom8887mf21ug01bje5q/99189371731.pdf
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/160734cfd86a96---55434978783.pdf
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16094d1b2aab1b---82518968266.pdf
    • http://anandamsanyal.com/userfiles/file/zefomatinitinibeve.pdf
    • https://roeveragri.ac.in/wp-content/plugins/super-forms/uploads/php/files/1a5799398548a5eccf97350bb86d239b/vawivoxawegixinuwudoled.pdf
    • https://higher-reason.com/wp-content/plugins/super-forms/uploads/php/files/aummi803ksrakbudkqk2li70je/68675089631.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=purple+color+background+wallpapers

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