Malicious PDF — malware analysis report

Static analysis result for SHA-256 80dbb14247c55dba…

MALICIOUS

PDF

55.3 KB Created: 2021-09-18 12:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 6ee0847d6e4a7fc83891ec46ec8a261d SHA-1: 6efb227749d33509df132372acc82142322221fc SHA-256: 80dbb14247c55dba8fe0cca1951edaa34dafc562baf9830db492cb68338e4cae
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF file contains numerous links pointing to external resources, many of which are hosted on compromised CMS platforms. The ClamAV detection and ML classifier indicate malicious intent, likely to trick users into downloading further malware or engaging in phishing activities. The presence of a link farm on disposable hosting further supports a malicious purpose.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5757

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://garglob.ru/uplcv?utm_term=commando+bollywood+movie+download PDF link annotation
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16133b53e45a17---dipapugodidikuzudobe.pdfIn PDF document text
    • https://decisionstogo.com/fck_image/file/budaxetusupa.pdfIn PDF document text
    • https://www.auto-ecole-rive-droite.fr/ckfinder/userfiles/files/gefolu.pdfIn PDF document text
    • http://onlinecommerce.bg/uploads/pages/files/98897653670.pdfIn PDF document text
    • http://vinhthuan.com/upload/files/niwufarakevokaxosopuvik.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/7d23507c957ee00d5de7883db79a5477/ketasulupirujuzavawabuzi.pdfIn PDF document text
    • http://quincy.pl/ckfinder/userfiles/files/vawodakadepelupigil.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161407317f0b95---bevimi.pdfIn PDF document text
    • http://myphamasia.net/upload/files/71564549817.pdfIn PDF document text
    • https://hogies.com/includes/template/uploads/file/refipalefukemi.pdfIn PDF document text
    • http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/f734b66c5b78d153b53df62f295c50e9/zatimufimobumim.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16141287864f21---6252285812.pdfIn PDF document text
    • https://dlt-nkp.com/fileupload/file/58635560694.pdfIn PDF document text
    • https://elearning-chemistry.ro/userfiles/file/rupisimivexijefebolimogex.pdfIn PDF document text
    • https://petandpuppies.com/userfiles/file/36592702932.pdfIn PDF document text
    • http://propertiesforrent.com/userfiles/file///1101633213.pdfIn PDF document text
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/161356ca028a8e---zibukerobewawezubufobeniz.pdfIn PDF document text
    • http://gramercy-grand.ru/files/file/dusejuwadefebelugonopixu.pdfIn PDF document text
    • https://rubenferro.com/userfiles/file/fimobuwexoxexak.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/jdpo79p9a6l7nogdh00roprmk2/87857684813.pdfIn PDF document text
    • https://www.parcdelorval.com/ckfinder/userfiles/files/gogidumoxirulola.pdfIn PDF document text
    • http://www.singchai.co.th/ckfinder/userfiles/files/40534727911.pdfIn PDF document text

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