Malicious PDF — malware analysis report

Static analysis result for SHA-256 08e39fcdfb4d08f3…

MALICIOUS

PDF

62.5 KB Created: 2021-09-22 14:44:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: c0e5d3a60525a5ddd7a802c8e866166c SHA-1: 0d9cb1aaad238d3c2a16bbc2b08bb578a9e57cec SHA-256: 08e39fcdfb4d08f38aef3234cb9350f8e2de534199aa82c54a7a76647245b9fc
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier, indicating malicious intent. It functions as a link farm, containing numerous URLs pointing to potentially compromised or disposable domains, suggesting it's used to redirect users to malicious sites for phishing or malware delivery. The presence of external URIs and link farm characteristics strongly supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7797

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
  • 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://ketchas.ru/uplcv?utm_term=vivaldi+winter+piano+pdf PDF link annotation
    • https://podiummagazinenews.com/ckfinder/userfiles/files/vejivimizevejivimopejonek.pdfIn PDF document text
    • http://rulife.ru/ckfinder/userfiles/files/24868842354.pdfIn PDF document text
    • http://truhlarstvisollner.cz/data/file/91684769188.pdfIn PDF document text
    • http://80tner.friend-match.com/upload/files/janokasa.pdfIn PDF document text
    • http://go-pxl.com/uploads/files/48217160726.pdfIn PDF document text
    • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145f13ed30ee---89340832944.pdfIn PDF document text
    • https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/2c5eac55a4870986f6e9a72b2eb96386/8253491961.pdfIn PDF document text
    • http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/77948841445.pdfIn PDF document text
    • http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16149affe870c9---xipaxuwekapawexukosokem.pdfIn PDF document text
    • http://jpsacademy.com/slbdavbatala/userfiles/file/manoriwokes.pdfIn PDF document text
    • http://agilesolutions.in/uploads/wofemimubusebosagumapeda.pdfIn PDF document text
    • https://vientangluc.com/upload/files/vimavisabasemiselalosa.pdfIn PDF document text
    • https://carlojans.com/cms/file/48292861789.pdfIn PDF document text
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613850d10b98c---35027788253.pdfIn PDF document text
    • http://zagazzo.com/userfiles/file/digoduxepuxugal.pdfIn PDF document text
    • https://audreyheselmans.com/_files/file/58852046086.pdfIn PDF document text
    • https://mimpiindah2.com/contents/files/44666427978.pdfIn PDF document text
    • https://sarvodayasamaj.uk/upload/files/24301689738.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613329ad4c70d---banivudeduniv.pdfIn PDF document text
    • http://cpviettin.com/upload/files/92024345921.pdfIn PDF document text
    • https://cartolmania.it/file/82690162825.pdfIn PDF document text
    • http://weddingdove.tw/uploads/files/202109160952437345.pdfIn PDF document text
    • https://vinacoma3.vn/userfiles/file/14323253829.pdfIn PDF document text
    • https://www.fyna.com.au/application/third_party/ckfinder/userfiles/files/rigivudegewopokalunabivon.pdfIn PDF document text
    • http://aedjtjdshbf.pretty-match.com/upload/files/78270921364.pdfIn PDF document text
    • http://netmutum.com/userfiles/file/66143708650.pdfIn PDF document text
    • http://cataga.de/beta/files/file/95223832690.pdfIn PDF document text

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