Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f45dfbcb342cdd4…

MALICIOUS

PDF

45.7 KB Created: 2021-09-24 00:57:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 9bb7160f9547ea61060a238c7473941a SHA-1: 038049606c311f46c93497740671831dd8bef3fd SHA-256: 7f45dfbcb342cdd4d1613a1fcaff1fddd5a1df9f43c6583e43c8a2fa74aea509
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, indicating an attempt to execute code within the user's browser. It also features numerous external URIs, many of which are hosted on disposable domains, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9295

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 http://damvua.com/damvua/public/images/files/mofago.pdf In PDF document text
    • http://gleb777.com/fck_upload/file/mojatode.pdfIn PDF document text
    • https://thefertilizerequipment.com/d/files/nozogivasi.pdfIn PDF document text
    • http://www.udelimpa.es/ckfinder/userfiles/files/dapekupalovurelow.pdfIn PDF document text
    • https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/solor.pdfIn PDF document text
    • https://marlschuz.com/userfiles/files/jilijunuzigemudof.pdfIn PDF document text
    • https://gastrotest.co/ckfinder/userfiles/files/viwoxunazododusaxobupefot.pdfIn PDF document text
    • http://mwbright.com/upload_fck/file/2021-9-1/20210901150224761464.pdfIn PDF document text
    • http://eva.am/files/153a6ac84290a3f3.pdfIn PDF document text
    • http://world-green-hope.com/uploads/files/45839260461.pdfIn PDF document text
    • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614ad3b0d358f---24907797831.pdfIn PDF document text
    • https://portalkucharski.pl/app/webroot/media/files/59369356233.pdfIn PDF document text
    • http://sattosushi.com/uploads/files/givogepepatevizaz.pdfIn PDF document text
    • https://reitinguok.lt/userfiles/file/43204582504.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20210922020304.pdfIn PDF document text
    • http://wagnerpc.com/userfiles/files/786394856.pdfIn PDF document text
    • http://imdmotors.com/uploadfile/file/2021091805595360.pdfIn PDF document text
    • http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/58405375463.pdfIn PDF document text
    • http://evola.it/userfiles/files/79682609536.pdfIn PDF document text
    • https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/0f5dfde95532c0bfa57dbd03c91d5a94/10136816596.pdfIn PDF document text
    • http://ke-sen.com/userfiles/file/1630508584.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=bluetooth+gamepad+apkPDF link annotation

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