Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d9d7aa8e2044669…

MALICIOUS

PDF

77.9 KB Created: 2021-08-30 00:19:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 88a7d61c1ee683eb74eaa89b54098057 SHA-1: 60a0f42dd40e7dd40f94e5d7d049def6b80d1d12 SHA-256: 7d9d7aa8e204466956f942ea9bf00c9cc1b78ae2c26e0a527646f5dca4b158a9
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous links pointing to compromised websites, indicating an attempt to redirect users to malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics suggests a tactic to obscure the true destination and leverage compromised infrastructure. The embedded JavaScript likely facilitates the redirection or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9191

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
  • 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.
  • 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 http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1608bf23be381c---mozugin.pdf In PDF document text
    • http://master-stroi76.ru/userfiles/file/14481095776.pdfIn PDF document text
    • http://1960whs.com/clients/7/73/73384dfd0d582a2861cf356c55c3c578/File/25334868101.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/231920591083.pdfIn PDF document text
    • http://www.accessibilite-salle-eau.com/ckfinder/userfiles/files/merupuvufilow.pdfIn PDF document text
    • http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b1a9363937e---wijenetozekavevitax.pdfIn PDF document text
    • https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/7028corkdrvbv57mkdhjdif4jg/34246555740.pdfIn PDF document text
    • https://bruceleevideos.org/images/file/kikufixutukag.pdfIn PDF document text
    • http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/vetus.pdfIn PDF document text
    • http://sushibelovo.ru/files/vupidodojusurodalubut.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1612a213304923---57583686494.pdfIn PDF document text
    • http://webursitet.org/Files/file/kamenarolojosamufomajibal.pdfIn PDF document text
    • http://thunderstar.cn/userfiles/file/20210505124453188071580.pdfIn PDF document text
    • https://theloneranger.tv/clients/loneranger/ckfinder/userfiles/files/wakalok.pdfIn PDF document text
    • https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/fd7a8584e13fb75a6b6d87bb00a7e139/kuvonaseviwo.pdfIn PDF document text
    • https://silky.ae/images/bulk_images/files/34758948364.pdfIn PDF document text
    • http://bularz-auto.pl/images/userfiles/file/lajidusenotirawugavine.pdfIn PDF document text
    • http://nadiadsa.org/userfiles/file/61465471130.pdfIn PDF document text
    • https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16073ee5296f82---65851114706.pdfIn PDF document text
    • http://dermalab.pl/userfiles/file/pedasesuregis.pdfIn PDF document text
    • http://wecans.net/_UploadFile/Images/file/damozujofagem.pdfIn PDF document text
    • http://odontotecnicacoop.it/userfiles/file/95059763320.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca7b77beb5---vutewixuxeb.pdfIn PDF document text
    • http://partnercable.hu/files/tilizuvesabofero.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160feb1bfa6550---12142551822.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=nse+hourly+gainersPDF link annotation

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