Malicious PDF — malware analysis report

Static analysis result for SHA-256 75e94600e1b3615e…

MALICIOUS

PDF

46.8 KB Created: 2021-09-06 11:30:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-02
MD5: 61eb2cacbb812388a1920bd92f6a26b0 SHA-1: 3e10e5baf5bdff872fbe80cd5c81ba853dd5c8d1 SHA-256: 75e94600e1b3615e0c27a3172543e2f27716abcf0a9c59c07fcbe86b7e9c2d00
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document functions as a lure, presenting a "password-protected archive handoff" to trick users into downloading a password-protected file. It achieves this by hosting numerous links on compromised websites, likely to disguise the malicious intent and evade detection. The ML classifier and ClamAV detection strongly indicate malicious content, and the numerous external links suggest a phishing or credential harvesting attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6210

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://crysiq.ru/uplcv?utm_term=beatles+all+you+need+is+love+sheet+music+pdf PDF link annotation
    • https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4c1c398071---pixejitubeg.pdfIn PDF document text
    • https://patidarpalanpur.com/web/k/main_admin/ckfinder/userfiles/files/xusevawade.pdfIn PDF document text
    • http://maroba-zirndorf.de/file/sosujejetilavi.pdfIn PDF document text
    • http://orbitsecurity.qa/pro_mvp_tech/uploads/file/besabakur.pdfIn PDF document text
    • http://labonguyenhoang.com/img-chamthi/files/bekodasufijat.pdfIn PDF document text
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160983fca85fa2---33652997321.pdfIn PDF document text
    • https://www.qbuildsoftware.com/wp-content/plugins/super-forms/uploads/php/files/2b5c670af33e882ccd44d4fecc9ed09a/8809143686.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a83af9842ac---34663686346.pdfIn PDF document text
    • http://rolfingnaples.com/clients/a/a5/a5422f62036d2d393d866963e902351c/File/78370141262.pdfIn PDF document text
    • http://hykylalumni.org/userfiles/menubedewukivo.pdfIn PDF document text
    • https://songhong-thudo.com/img/files/telokikililanixe.pdfIn PDF document text
    • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3ed707359---dukoxedaradimawun.pdfIn PDF document text
    • https://schachverein-marchhoefe.ch/fcsr/news/upload/file/48023146792.pdfIn PDF document text
    • https://isosklo.cz/uploads/suwamexodinitoweneke.pdfIn PDF document text
    • http://interwork.sk/userfiles/file/73080771939.pdfIn PDF document text
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609b801e04c6b---34377632660.pdfIn PDF document text
    • https://pbchistoryonline.org/uploads/file/fixifolax.pdfIn PDF document text
    • https://sitarasign.ir/data/file/fudubugevawoso.pdfIn PDF document text
    • http://plnjl.com/userfiles/files/32346364715.pdfIn PDF document text
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f7a65f1f8a---gunekazotenuzipabu.pdfIn PDF document text
    • https://aicpwdosaeast.com/ckfinder/userfiles/files/xujemadojafirubudevapu.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/d53fbfe96591a6641929ed8b4130bf2c/19558548829.pdfIn PDF document text
    • http://dragoniresorts.com/userfiles/52722993985.pdfIn PDF document text
    • http://minhtoangalaxyhotel.vn/app/webroot/files/ckfinder/files/92380454767.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/95d548c229b8081de6bb6d6e9e417efe/57762489170.pdfIn PDF document text
    • https://flexrocksrollovers.com/wp-content/plugins/super-forms/uploads/php/files/9938sb65127u0i0qpfarb6mpet/81887867129.pdfIn PDF document text

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