Malicious PDF — malware analysis report

Static analysis result for SHA-256 d47f287c398df307…

MALICIOUS

PDF

64.0 KB Created: 2021-05-08 10:07:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: acf495e283fd93ddfca9f3038b4d53fa SHA-1: 92870166638354c475086dbc714f43c1bd52b0f8 SHA-256: d47f287c398df3076ac581ee0d677a04715eb1f0bd5592b3a2ffa212f581f36a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites and other domains, suggesting an attempt to distribute malicious content or conduct phishing. The PDF's structure and embedded links indicate it is designed to redirect users to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8681

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://insights3.com/wp-content/plugins/super-forms/uploads/php/files/83129380a69217bbec8bc32ffa1d7737/sawonobadivu.pdf
    • http://astro2sphere.com/admin/images/file/23614335672.pdf
    • http://shqinze.net/admin/upimg/file/%5C/63363854950.pdf
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160959f52d1c1a---zatasukujurujanawaj.pdf
    • http://aryajob.com/user_upload/file/24337283442.pdf
    • http://polskienarty.pl/data/aktualnosci_imgs/file/kokesilona.pdf
    • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/0tfb4jbcicb80tj3qkauudb56k/96482625752.pdf
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/cm2l264dg5oeg32dncp8b20g4a/lesasoretotef.pdf
    • https://accesoriosalmayor.com/images/userfiles/file/62514543542.pdf
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/1lcdalbhfi7ek1q6f3u44sr184/44941614625.pdf
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c950b33897---68037193097.pdf
    • https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d050e78424---24571235432.pdf
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087c9cc3be8d.pdf
    • http://astro2sphere.com/admin/images/file/gasumuta.pdf
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/chvvf64n6r13poanl0smrkhji6/97704326120.pdf
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160862fdd56ebb---40422848968.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=duracell+alkaline+battery+msds+sheet
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d205.bin
54d1ff1743377707cc8eb4aa8edb9d0e7ccf2301e459eb2ccd32e0816a9c4def		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD205 5484 bytes

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