Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ed7b3b8e10bb3ae…

MALICIOUS

PDF

56.8 KB Created: 2021-09-21 04:48:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: c5d6681bb047e774c8ffe573a1289890 SHA-1: b166d2e23b95dbaa58a584108f8990a446e40e97 SHA-256: 9ed7b3b8e10bb3aee8f0a45c4d03540cf962fe7a84b8598695c64e9d6bd74108
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6836

Heuristics 4

  • 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.
  • 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://archism.ru/uplcv?utm_term=windows+7+emulator+online PDF link annotation
    • https://calson.garment-pro.com/ckfinder/userfiles/files/87810519617.pdfIn PDF document text
    • https://upaspor.com/resimler/files/64012426066.pdfIn PDF document text
    • http://pyhunlian.com/uploadfile/file/talamefomemavidopakegana.pdfIn PDF document text
    • http://josepholszowka.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99056050741.pdfIn PDF document text
    • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/9dbc911b1c7846a4d75bf4c3a2ca68c8/19139083200.pdfIn PDF document text
    • http://zaiger.ru/img/file/78120902537.pdfIn PDF document text
    • http://bassonconsulting.mc/userfiles/file/zuxufemiwixigulul.pdfIn PDF document text
    • http://icaalliance.org/filespath/files/20210907003755.pdfIn PDF document text
    • https://metrosecuritynepal.com/assets/userfiles/files/pinesomivisezelukup.pdfIn PDF document text
    • http://print-printonline.com/ckfinder/userfiles/files/32666694986.pdfIn PDF document text
    • https://anhhuynoithat.com/asset/files/36983079444.pdfIn PDF document text
    • https://verner.lt/images/files/9514569903.pdfIn PDF document text
    • https://nolimitscenter.be/peausitive/images/FCKeditor/file/xutubokatekip.pdfIn PDF document text
    • https://classoft.ro/userfiles/file/64867450460.pdfIn PDF document text
    • http://linuxnewyork.com/draft/media/44020431820.pdfIn PDF document text
    • http://getwealthythisyear.com/ckfinder/userfiles/files/8771819381.pdfIn PDF document text
    • https://netwindowvn.com/uploads/userfiles/file/71941774489.pdfIn PDF document text
    • http://steffis-strassladen.de/userfiles/file/nesumawo.pdfIn PDF document text
    • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/fah4nvfe6tht5sj0fo9rqujan6/43889662073.pdfIn PDF document text
    • http://bxbrdh.marketsearching.com/upload/files/87569720309.pdfIn PDF document text
    • https://thehouseconcert.com/ckfinder/userfiles/files/83274389899.pdfIn PDF document text
    • http://langfordfinancialservices.com/userfiles/files/18104644340.pdfIn PDF document text