Malicious PDF — malware analysis report

Static analysis result for SHA-256 067af15c3a8b7ed9…

MALICIOUS

PDF

47.0 KB Created: 2021-09-11 12:12:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 27a112a94c30da3da9f4143384f260d2 SHA-1: 8ad030dde3f58502fa40246f06b99a15d5cbbfd0 SHA-256: 067af15c3a8b7ed9cf041b475fea6e7b4508016e3ec327706ce27665aab041d1
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the numerous extracted URLs suggest an attempt to redirect users to potentially malicious sites. The ClamAV detection and ML classifier further support the malicious nature of this file, indicating it's likely a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7471

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jvcc.cn/ckfinder/userfiles/files/2109102148310202428xvp2.pdf In PDF document text
    • http://sweethomedelivery.com/ckeditor/ckfinder/core/connector/php/uploads/files/wibalif.pdfIn PDF document text
    • https://liur-krd.ru/userfiles/file/19765775030.pdfIn PDF document text
    • http://dailyliving.nl/ckfinder/userfiles/files/75852726674.pdfIn PDF document text
    • https://reviewz.eu/app/webroot/files/userfiles/files/saradopura.pdfIn PDF document text
    • http://eros-arena.de/eros/userfiles/file/pivowu.pdfIn PDF document text
    • http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16130c69cd567d---25378659468.pdfIn PDF document text
    • http://aydinservis.com/ckfinder/userfiles/files/78589100629.pdfIn PDF document text
    • http://emailreceptionist.net/userfiles/file/80216497874.pdfIn PDF document text
    • http://www.hro.ait.ac.th/js/ckfinder/userfiles/files/44486049562.pdfIn PDF document text
    • http://shanghaiqingchen.com/upload/files/87328826395.pdfIn PDF document text
    • https://eurouniversal.eu/ckfinder/userfiles/files/94485040582.pdfIn PDF document text
    • http://smflow.in/admin/uploads/file/79454972843.pdfIn PDF document text
    • https://vyaspublicschool.com/ckfinder/userfiles/files/83999098571.pdfIn PDF document text
    • https://heritagecambodiatravel.com/userfiles/file/2465867383.pdfIn PDF document text
    • http://nieruchomosci-swidnica.pl/userfiles/file/xirezose.pdfIn PDF document text
    • http://ebbers-schilderwerken.nl/uploads/files/40034926547.pdfIn PDF document text
    • http://fields-on-earth.com/images/blog/file/68356926075.pdfIn PDF document text
    • http://hajnysport.cz/FCK_userfiles/file/17888506382.pdfIn PDF document text
    • https://typeone.com.my/ckfinder/userfiles/files/tetomokafegubazew.pdfIn PDF document text
    • https://siliconautomation.com/userfiles/file/98743050273.pdfIn PDF document text
    • https://grandegroup.net/files/59028948640.pdfIn PDF document text
    • http://vncdata.net/app/webroot/uploads/files/65420695683.pdfIn PDF document text
    • http://sprostredkovanieuverov.sk/res/file/40603638186.pdfIn PDF document text
    • http://teaterskolen-efteruddannelsen.dk/ckfinder/userfiles/files/1901609527.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=data+structure+book+pdf+for+bcaPDF link annotation

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