Malicious PDF — malware analysis report

Static analysis result for SHA-256 ded6a65a2010ce10…

MALICIOUS

PDF

49.7 KB Created: 2021-09-19 02:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: c09b28b99b45e1449ee044c36b52078b SHA-1: 1d3616c32c694b9646336e167e86a7e1edb77d09 SHA-256: ded6a65a2010ce10d44180bf367d2ea0c6d68b900e68e6212f8857bce91d7fe6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm with numerous URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting an attempt to redirect users to malicious content or phishing pages. The presence of external URIs and a link farm indicates a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7444

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
  • 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=mod+apk+games+android+offline PDF link annotation
    • https://www.indoorclub-informa.com/boletines/img/file/jomurumufofelosisadezut.pdfIn PDF document text
    • http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/76821105928.pdfIn PDF document text
    • https://vibangnhadat.com/uploads/files/51057572505.pdfIn PDF document text
    • http://www.psychophonie-tarbes.com/ckfinder/userfiles/files/mirelidi.pdfIn PDF document text
    • http://gelikonline.ru/content/Files/60570512508.pdfIn PDF document text
    • https://fasaac.org/temp/files/3105448473.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/0a3a2f1a93c171cf75e28a24c2f21471/98289747498.pdfIn PDF document text
    • https://hopclickhospitality.com/scgtest/team-explore/uploads/files/75294636689.pdfIn PDF document text
    • https://www.medicalbi.com/ckfinder/userfiles/files/rurete.pdfIn PDF document text
    • http://china-miyaco.com/img/file/2021917222310.pdfIn PDF document text
    • https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16131dd713bd65---27900745964.pdfIn PDF document text
    • https://msiutilities.net/documents/55460657258.pdfIn PDF document text
    • https://cbdc.co/uploads/ckfinder/userfiles/files/bulivaxitesu.pdfIn PDF document text
    • http://rambud.pl/uploaded/file/45270163679.pdfIn PDF document text
    • https://marmetal.cevhertemizlik.com/userfiles/files/lamogoxevadabosomew.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d480315e28---27148303352.pdfIn PDF document text
    • http://medizator.ru/ckfinder/userfiles/files/12650208782.pdfIn PDF document text
    • http://lagerunda.it/public/upload/file/dewufakureguso.pdfIn PDF document text
    • https://sealskinz.ru/files/file/gexuroninogojaj.pdfIn PDF document text
    • http://naviway.su/upload/files/24754490612.pdfIn PDF document text
    • https://santehsevast.ru/userfiles/files/72218639953.pdfIn PDF document text
    • http://8njl.com/userfiles/files/gibevasaliroduze.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/5f681ceafdfe533e991b54629b2b3353/rufufositajusebojij.pdfIn PDF document text
    • http://xn--80aikni6a0b.xn--p1ai/images/file/79178251332.pdfIn PDF document text
    • https://stka.gr/ckfinder/userfiles/files/xazevedo.pdfIn PDF document text

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