Malicious PDF — malware analysis report

Static analysis result for SHA-256 b59fc0b4b8c376d8…

MALICIOUS

PDF

213.8 KB Created: 2021-07-04 19:18:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: ab7f6c41a979cd2dde5ede256e06d694 SHA-1: 4f2e9598138b5a79868919160834e31eaa636de9 SHA-256: b59fc0b4b8c376d883e04c2283872674da061490ebafc653ae4d0541a3e5c69d
124 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links to compromised WordPress sites, suggesting an attempt to host and distribute further malicious content. The presence of these links indicates a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9502

Heuristics 4

  • 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.
  • 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://cetinelektrik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609fe4e0ecf81---66620322610.pdf In PDF document text
    • http://bidwoodmachine.com/d/files/votesoporirazafi.pdfIn PDF document text
    • http://savaksangida.com/resimler/files/10280363826.pdfIn PDF document text
    • https://amblamy.ee/upload/file/81463002281.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160998d9ce7541---veturusuluwasamofosuze.pdfIn PDF document text
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0afb63aa3---46367562376.pdfIn PDF document text
    • http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160d0a0c2b4d35---74268548677.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607baff0112f6---ximubelijovigu.pdfIn PDF document text
    • http://ascensionchina.com/userfiles/file/74341752418.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a10368233fb---43553830314.pdfIn PDF document text
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/16091ae283dccb---dopoguwavoxosefobiroxepuz.pdfIn PDF document text
    • http://bennyhigh73.com/clients/3/33/33ce00c6a031cf3b17a3dcf69aaa7594/File/29894467205.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16096292bb9a98---sugiles.pdfIn PDF document text
    • http://jjmcp.jp/userfiles/Image/file/9375657529.pdfIn PDF document text
    • http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1a8e878fa---18909998053.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609834a9771e2---33689043115.pdfIn PDF document text
    • https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/3896e3745dbcb63088096ed84175fd3d/46287931499.pdfIn PDF document text
    • https://llsindia.in/FCKeditor/file/93983149861.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608c9d6b1075a---31774882473.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/92e50c1f2200415ee1f208aae1269e6a/55810176078.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/31517161615192aba051f235149528c9/84952670864.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/16093f4a4421d2---rarevamediralarexituder.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=ice+skating+moscowPDF link annotation

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