Malicious PDF — malware analysis report

Static analysis result for SHA-256 6043c97d004b3038…

MALICIOUS

PDF

48.0 KB Created: 2021-07-24 02:44:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-21
MD5: aa07aa5fd529e087ea5ea1b16368113d SHA-1: 1a7afdc0ab33168291b691f5a2b5ff3cbef8efc2 SHA-256: 6043c97d004b30381b05a06f96d31689b83251dc2f7411ba9067078ab8163668
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous links pointing to compromised websites, indicating a malicious intent to redirect users to potentially harmful content. The ClamAV detection and ML classifier strongly support its classification as a phishing trojan. The embedded JavaScript likely facilitates the redirection or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7222

Heuristics 6

  • 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.
  • 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 https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/f5b3510f3054657ba39815315e3eb587/janejafalasagalitisedu.pdf In PDF document text
    • http://modamoda.nl/uploads/pic_lib/file/10780350734.pdfIn PDF document text
    • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/3440037566b4df10160f19b928ea6a45/ribumitavikof.pdfIn PDF document text
    • http://jhdjt.com/images/upload/File/55279567432.pdfIn PDF document text
    • http://farmaciacogliate.it/userfiles/files/18177531982.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/jevadidajox.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608718da485ad---99255693286.pdfIn PDF document text
    • http://interwork.sk/userfiles/file/zutekoti.pdfIn PDF document text
    • http://scuderia512.com/js/upload/files/55324442149.pdfIn PDF document text
    • https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096a77ede129---91284064762.pdfIn PDF document text
    • http://monktonlionsclubkidscamp.com/clients/9/99/99b8b5517e5fb663501b7ee5137ebf55/File/98103373387.pdfIn PDF document text
    • https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/cad5390f5e685a94b8e1da730153c0de/61748989349.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/ino88ph5e7hh0a8djcg4nppijq/jesetudepiterilagagiga.pdfIn PDF document text
    • http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1606d69d222d0e---10267578455.pdfIn PDF document text
    • https://study-abroad-travel.com/ckfinder/userfiles/file/34718791754.pdfIn PDF document text
    • http://coinmarketsuite.com/ckfinder/userfiles/files/kowipifesesuvewotekenoki.pdfIn PDF document text
    • http://turhantur.com/turhantur/files/waduzelexowegejokebo.pdfIn PDF document text
    • http://otelm4b.ru/admin/ckfinder/userfiles/files/33159007834.pdfIn PDF document text
    • http://clubsahdianagalati.ro/upload/editor/file/sufurajiromajonexobumifa.pdfIn PDF document text
    • https://bititechnika.com/uploads/file/80215903640.pdfIn PDF document text
    • http://jngf.cn/files/file/jojawidepeketidatufed.pdfIn PDF document text
    • https://andrejc.si/files/file/55237889176.pdfIn PDF document text
    • http://etabetasurvey.com/userfiles/files/31824648644.pdfIn PDF document text
    • https://elbag.net/wp-content/plugins/super-forms/uploads/php/files/3f61d6c6445a452d2ef62d4ee94958a3/gufimewejux.pdfIn PDF document text
    • http://doggystylzgrooming.com/admin/photos/file/83292214189.pdfIn PDF document text
    • http://omegapizza.net/uploads/files/21986741826.pdfIn PDF document text
    • http://marcth.pl/media/fck/file/zuxawuxipugesoraximamodib.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=peux+plus+in+englishPDF link annotation

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