Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3cba532ae779f0e…

MALICIOUS

PDF

48.0 KB Created: 2021-09-23 15:52:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: a7880c2beeecc963f3fd63a675e525b5 SHA-1: 888fe1a7b8aa974a1ad4269aef07fb09f4dd3f2f SHA-256: a3cba532ae779f0e41b077fc862f2605af4d36d57f41626f8bff3ef4f52a650e
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external links, many of which point to disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for exploiting PDF vulnerabilities or redirecting users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6966

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://inwebjor.ru/uplcv?utm_term=seven+deadly+sins+season+4+watch+online PDF link annotation
    • http://cautrucpalang.vn/webroot/img/files/17014968148.pdfIn PDF document text
    • https://asiarsolutions.com/userfiles/file/3543250896.pdfIn PDF document text
    • http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/tikuxuzogilifarepiv.pdfIn PDF document text
    • http://reklama-kemerovo.ru/files/files/39744287378.pdfIn PDF document text
    • http://popmetre.com/news/files/keserasi.pdfIn PDF document text
    • http://travel-door.com/userfiles/file/3000128860.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614011facf532---vamulemakojo.pdfIn PDF document text
    • https://nusbetaja2.com/contents/files/putovovufexapazan.pdfIn PDF document text
    • https://itracmediav5.com/ckfinder/userfiles/files/jobemivam.pdfIn PDF document text
    • http://hycxchina.com/filespath/files/20210906154242.pdfIn PDF document text
    • https://kenhquangcao.vn/uploads/files/4283589205.pdfIn PDF document text
    • https://edinburghpools.com/contents/files/30440794139.pdfIn PDF document text
    • https://ladachess.ru/userfiles/file/wasebevopixeja.pdfIn PDF document text
    • https://coonvalleycc.com/userfiles/file/jolobog.pdfIn PDF document text
    • https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/fulaguribinetorunuse.pdfIn PDF document text
    • http://bowie.abwingsmd.com/uploads/files/kumifowojarozeve.pdfIn PDF document text
    • https://apatity.verlauf-ekb.ru/admin/ckfinder/userfiles/files/naravubelimujafiralu.pdfIn PDF document text
    • https://worldtradezone.com/userfiles/file/20710009226.pdfIn PDF document text
    • http://aqbnb.com/uploadfile/file/bubozotavupuxinexu.pdfIn PDF document text
    • https://asesoriagade.com/app/webroot/files/files/82287056195.pdfIn PDF document text
    • https://www.disbel.es/ckfinder/userfiles/files/fijapajitofaxunap.pdfIn PDF document text
    • http://deborahmayerlawoffices.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/61611779824.pdfIn PDF document text

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