Malicious PDF — malware analysis report

Static analysis result for SHA-256 511569ad2f8188c2…

MALICIOUS

PDF

60.9 KB Created: 2021-09-11 16:56:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 350d7d45759103efe9b0f55d45c7a64f SHA-1: 2fe80c8ff410eeac14294d1b24f4b4121a7b4373 SHA-256: 511569ad2f8188c2eb80cd5fbc52a37d4886fa1bf00cc2675e7b6603d15d0900
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to potentially compromised websites or disposable hosting, suggesting a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5565

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 http://motorlustor.net/userfiles/file/wumisaviluredixujig.pdf In PDF document text
    • https://losungversorger.com/product/file/vuworujufiwosetotofav.pdfIn PDF document text
    • http://ramenhajimetustin.com/uploads/files/rezabijasebo.pdfIn PDF document text
    • http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/161397f96434f8---veleguleteda.pdfIn PDF document text
    • http://porpora.info/imagenes/imagenes_contenidos///48961856748.pdfIn PDF document text
    • http://gartenmessebau.de/uploads/files/74887901420.pdfIn PDF document text
    • http://botosani.ro/img/uploads/file/zumasadakisanidad.pdfIn PDF document text
    • https://easternresources.net/ckfinder/userfiles/files/niwozelusevizawewoguteve.pdfIn PDF document text
    • http://cuanhuaabshanquoc.vn/files/jamaropodukurujomawezomut.pdfIn PDF document text
    • http://pelejas.com/IMAGENS/CKFINDER/files/78748102776.pdfIn PDF document text
    • http://domainecomps.com/documents/files/51409227720.pdfIn PDF document text
    • http://wwpokebar.com/uploads/files/pekulajuvobebine.pdfIn PDF document text
    • https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/75465628174.pdfIn PDF document text
    • https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/m86ihfgmd5cpmqrkot3nis8bnq/zizigofivaz.pdfIn PDF document text
    • https://www.cifphosteleriayturismo.es/ckfinder/userfiles/files/babisubetezukux.pdfIn PDF document text
    • http://veoguidecostarica.com/ci/userfiles/files/tawalujebapananeteworub.pdfIn PDF document text
    • http://alles-vom-schreiner.de/userfiles/file/lamawimavasone.pdfIn PDF document text
    • http://itineraire-consulting.com/ckfinder/userfiles/files/51776727461.pdfIn PDF document text
    • http://rosniyom.com/userfiles/files/73846901250.pdfIn PDF document text
    • http://jamones-luna.shopcloud.es/ckfinder/userfiles/files/zinixopofezujifipiwemek.pdfIn PDF document text
    • http://ilonew.tasksplan.com/ckfinder/userfiles/files/rebukavegobodixojudupa.pdfIn PDF document text
    • http://www.petercar0937494634.com/upload/img/files/24287990107.pdfIn PDF document text
    • http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16138b8a3f3a9e---66827505145.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=red+fox+life+cycle+diagramPDF link annotation

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