Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b07bd86aeb242c2…

MALICIOUS

PDF

65.7 KB Created: 2021-09-15 18:44:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: af43683c5cfeb9af288f250fc01eeecf SHA-1: ba9ec342c5808cfc645c2b6b69f34a7f02e204e9 SHA-256: 6b07bd86aeb242c26661d5c23ab4439527025d050634eb32f1ce151af2a5b415
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded URLs, many of which point to suspicious domains or are structured as link farms, indicating a phishing or malware distribution attempt. The ClamAV detection 'Pdf.Phishing.Trojan-d2528dad23a95d95-10044376-0' strongly suggests a malicious intent, likely to redirect users to malicious content or download further payloads. No scripts were extracted, but the sheer volume of suspicious links and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' confirm the attack pattern.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4516

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://alquimia.in/admin/fckeditor/editorfile/39704572784.pdf In PDF document text
    • http://www.kickcommerce.com/userfiles/file/49718671964.pdfIn PDF document text
    • http://thetestmag.com/userfiles/files/fufojofopevagebuvenujew.pdfIn PDF document text
    • https://garraldaarquitectura.com/garralda_userfiles/files/pizodububifowopawuk.pdfIn PDF document text
    • http://taemyung.com/data/upload/file/xowakanejeremop.pdfIn PDF document text
    • https://suprizpin.com/calisma2/files/uploads/nedawaxitifivevebamodep.pdfIn PDF document text
    • https://haciendaloscipreses.cl/upload/file/22600592650.pdfIn PDF document text
    • http://inarchengineering.it/userfiles/files/xomozaromizusurez.pdfIn PDF document text
    • https://charterboatdeliverance.com/uploads/files/kijusugekoxozipalanok.pdfIn PDF document text
    • http://angelojrobles.com/admin_initial_test/userfiles/file/16266605614.pdfIn PDF document text
    • https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/d7e1206fae4567a13fea51cae6b4c915/xamijikepaxebane.pdfIn PDF document text
    • http://hyunshin.net/userfiles/file/ramozatakibabefi.pdfIn PDF document text
    • http://www.zywawiara.pl/pliki/1740388376.pdfIn PDF document text
    • http://manisafar.com/basefile/marcosafarir/files/mapanerexirezidi.pdfIn PDF document text
    • http://csc-0898.com/userfiles/file/20210915155733_581vvu.pdfIn PDF document text
    • http://nasfthr.com/userfiles/file/xonozotopabug.pdfIn PDF document text
    • https://b2b-intelligence.it/uploads/file/bojexemizavop.pdfIn PDF document text
    • http://hz-karavany.cz/ckfinder/userfiles/files/satasuzunamu.pdfIn PDF document text
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614211aa5c7e4---xazazivawenex.pdfIn PDF document text
    • http://k3projekt.pl/uploads/userfiles/files/29143128270.pdfIn PDF document text
    • http://siltherm.com/ckfinder/userfiles/files/tekiv.pdfIn PDF document text
    • https://caror.hu/ckfinder/userfiles/files/zogovaberapotevozisufik.pdfIn PDF document text
    • https://servauto.fr/img/user/file/23017158235.pdfIn PDF document text
    • http://domesticsolutionsagency.com/userfiles/file/85487791355.pdfIn PDF document text
    • http://sochi-vitrazhi.ru/ckfinder/userfiles/files/navawosezav.pdfIn PDF document text
    • http://osoboebludo.com/ckfinder/userfiles/files/losurodegufigusinazowuxir.pdfIn PDF document text
    • https://fotobolfestmeny.hu/mvc/userfiles/file/64255387962.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=tokyo+drift+full+movie+streamPDF link annotation

Related samples 8

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