Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd5f14972801c403…

MALICIOUS

PDF

47.0 KB Created: 2021-09-27 20:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: ef3dae70145f2d54eb914fbf04c38957 SHA-1: 9da20eed2433c045a61bdc594606cbdf8eee19de SHA-256: fd5f14972801c403cd0bba770d9b7868c3bdea0358c9c51c846a38e3a34c3713
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript and numerous external URIs, indicating it is designed to redirect users to potentially harmful websites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly suggests a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7242

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://wastran.ru/uplcv?utm_term=boruto+naruto+the+movie+english+dub+free PDF link annotation
    • http://pujcovnanaradi-tvarozna.cz/userfiles/files/99966426160.pdfIn PDF document text
    • http://sasmedm.com/www/js/ckfinder/userfiles/files/tivazafirawanasoz.pdfIn PDF document text
    • http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/538777450.pdfIn PDF document text
    • https://www.bevillelecomte.com/ckfinder/userfiles/files/vijavipixukufogab.pdfIn PDF document text
    • https://ud-hobby.com/images/Upload/file/kafoziz.pdfIn PDF document text
    • https://testgit.begurholidays.com/uploads/userfiles/files/88179400095.pdfIn PDF document text
    • http://bigbulkbags.com/survey/userfiles/files/58158598614.pdfIn PDF document text
    • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/9d83ab1ba98a2d09f37cb0c9dc2b0756/lenogepumobedurimono.pdfIn PDF document text
    • http://fabriziocar.it/userfiles/files/94558638292.pdfIn PDF document text
    • http://stepasidemedical.ie/images/uploads/file/sikitepofuponebo.pdfIn PDF document text
    • http://www.bufolari.com/public/immagini/file/72777568983.pdfIn PDF document text
    • http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/jlcs8vcnlmm7041qt6gicr8ru5/70553984737.pdfIn PDF document text
    • https://www.psk.com.au/application/third_party/ckfinder/userfiles/files/53010223166.pdfIn PDF document text
    • http://gyermekhaz.hu/Content/site_images/files/158997388.pdfIn PDF document text
    • http://kliknetezde.cz/admin/obrazky/file/kejipegaxoxatenep.pdfIn PDF document text
    • http://www.halpellet.hu/userfiles/files/43145064300.pdfIn PDF document text
    • https://mumegram.com/userfiles/file/nuzoguxuwugowubewifu.pdfIn PDF document text
    • http://finemetal-cn.com/upload/files/50897171294.pdfIn PDF document text
    • http://thietbiantoanttk.com/uploads/files/kugeko.pdfIn PDF document text
    • https://www.l-games.jp/js/ckfinder/userfiles/files/papogonopopime.pdfIn PDF document text
    • http://ppfi-online.com/userfiles/file/97875954479.pdfIn PDF document text