Malicious PDF — malware analysis report

Static analysis result for SHA-256 6046fa9da5e66ea1…

MALICIOUS

PDF

71.8 KB Created: 2021-08-06 18:41:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 137ec15bc6d1c53d20f4edcc22415f8b SHA-1: 183a24e0ed44a4247db72791b919782736304513 SHA-256: 6046fa9da5e66ea11300157f1ff1eb33f1db454d6e286de270b2e4de09f92802
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised WordPress sites, which is a common tactic for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to exploit users by redirecting them to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9804

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 http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c30ae5684be---28230491129.pdf In PDF document text
    • http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b843b832c6c---putigudajena.pdfIn PDF document text
    • https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/mb027cbaj1hjhrdbmo8c60vkaa/pokovusazuwaguxezowunebuw.pdfIn PDF document text
    • http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/2f2bf51c41012c5dd811aaa428928377/pewosiwilopusipi.pdfIn PDF document text
    • https://autotrans911.com/thread/admin/uploads/file/38974430594.pdfIn PDF document text
    • http://agiusfuneraldirectors.com/files/file/kunamibumiki.pdfIn PDF document text
    • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/9b4b2e89f643f271ec0fa83c93650b26/ruzamalevegajoruge.pdfIn PDF document text
    • http://www.mueblesgamez.com/ckfinder/userfiles/files/25837687967.pdfIn PDF document text
    • https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/45dd0130e4bd8501c283902f93b0c65d/lisipuga.pdfIn PDF document text
    • http://meijialx.com/ckfinder/userfiles/files/religasefajojapupufelak.pdfIn PDF document text
    • http://tlxzkj.com/uploads/file/241946315530.pdfIn PDF document text
    • https://laatjehuisweerstralen.nl/upload/file/29957030102.pdfIn PDF document text
    • https://ddc-touggourt.dz/ar/files/lominoforujafazeborumavu.pdfIn PDF document text
    • http://hanhthien.net/uploads/file/47093418678.pdfIn PDF document text
    • http://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/4116247443.pdfIn PDF document text
    • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/83628b64acf62cc2ebbcdd5b7c0bfdda/judawesomulexoz.pdfIn PDF document text
    • https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/49cfae979096ed8bd26b52e0ae3dc054/23655699894.pdfIn PDF document text
    • https://alshamiltrading.com/alshamilfiles/file/88918620065.pdfIn PDF document text
    • https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/15d1a001e707eaa9863d82d4cd053058/nagomupavikovi.pdfIn PDF document text
    • https://rlvanstory.com/wp-content/plugins/super-forms/uploads/php/files/dee167e6c8884e4f3542b66f79726dc6/xenozobodoxula.pdfIn PDF document text
    • http://treeoflifetolfu.com/clients/0/07/07f122ebb3396bb3f917f2e62af81596/File/tizejax.pdfIn PDF document text
    • http://hillcresthigh1971.com/clients/9/9f/9fbf9047a6869172a982db6f42f05a9a/File/17587046837.pdfIn PDF document text
    • http://horizonpestservices.com/userfile/54487353862.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a041ec69a93---67285574002.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=what+element+is+your+mars+signPDF link annotation

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