Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ccf01bd37998652…

MALICIOUS

PDF

51.7 KB Created: 2021-05-07 02:31:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 085ea728d4714a9773491eb195dac7b6 SHA-1: 6235b39776e69149412769115236469f6e0ef44e SHA-256: 4ccf01bd37998652cac89987b6101a04fa8c5a639348fe24dc86ab1a34916a30
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to compromised WordPress sites, indicating a link farm designed to funnel traffic. The ClamAV detection as 'Pdf.Phishing.Trojan' and the ML classifier further support its malicious nature. The document body is heavily obfuscated and appears to be junk data, reinforcing that the primary function is the embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6925

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 http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/mvdmf84gd688448q95rvcefvf2/22123630313.pdf
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c8b80fbaf---57303874772.pdf
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872ebfd04f5---38218298094.pdf
    • http://aarogyamedico.com/userfiles/file/45087462034.pdf
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc9fddd6bb---fozopinitibodejoxana.pdf
    • https://ludifrance.fr/userfiles/file/sujeziv.pdf
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d07dd93ca7---39918395168.pdf
    • https://www.ideaklinikizmir.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080a312f2585---9370924302.pdf
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16083b122daad5---13742699785.pdf
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/86806b2764bd8a5a00fd63e0ecf78f20/taneji.pdf
    • https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/3321r2jjc0vc7ett0qt2vpbn94/37785346148.pdf
    • https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c61ce340b---7859908359.pdf
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c65683b491---58685755875.pdf
    • https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/dd203b5acab20359b4d55f7f3c04d587/280458624.pdf
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/16092adfb9c493---mamil.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=angka+bahasa+arab+1+sampai+100

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