Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5ee3b1fdc82497b…

MALICIOUS

PDF

64.3 KB Created: 2021-10-09 04:07:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 15fec231c99583df17baa9ffd86b51e1 SHA-1: 741fd23ee624f0f52131c75b0fb05724f6862d6e SHA-256: a5ee3b1fdc82497b548ca5115a057afa020a0e736e6ac946ac43362f0efc1b2d
154 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6381

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://medicaldistri.com/ckfinder_files/files/kewopunuxewofize.pdf In PDF document text
    • http://ndc-group.ru/uploads/files/83273800891.pdfIn PDF document text
    • http://www.coverseg.com/uploads/ckfinder/files/46406420857.pdfIn PDF document text
    • https://www.lire-les-notes.com/ckfinder/userfiles/files/pusanubitu.pdfIn PDF document text
    • https://wheelmartthailand.com/image/upload/File/90030383664.pdfIn PDF document text
    • http://phuongsen.com/img-chamthi/files/sanopife.pdfIn PDF document text
    • http://baggiez.net/userfiles/file/19321605063.pdfIn PDF document text
    • http://pol2-simf.ru/userfiles/file/37269799506.pdfIn PDF document text
    • http://tubietelbar.hu/uploadfile/80858631856.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135c14f97adc---39076751912.pdfIn PDF document text
    • http://gzwep.com/img/file/202191810758.pdfIn PDF document text
    • http://polskienarty.pl/data/aktualnosci_imgs/file/defifopubosoropudipizoda.pdfIn PDF document text
    • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/b95b7138e5a5028584b31eaf2aa31f54/bozonusu.pdfIn PDF document text
    • https://jaukiaplinka.lt/ckfinder/userfiles/files/lafezupuxokekus.pdfIn PDF document text
    • http://bdata.vn/upload/files/15895330739.pdfIn PDF document text
    • http://massiimo.com/piceditor/file/50355961262.pdfIn PDF document text
    • https://transdeliveris.lt/userfiles/file/lawexodinuwowamukunovana.pdfIn PDF document text
    • http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/16142247cad7db---naxedizekaredis.pdfIn PDF document text
    • http://alarcon-v.com/editor_upload_image/file/vivaw.pdfIn PDF document text
    • http://cafegreenwichvillage.com/uploads/files/tuzapiximelapomidafezije.pdfIn PDF document text
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/16152f80329da3---60827342466.pdfIn PDF document text
    • http://www.icareonline.net.au/ckfinder/icare/files/jutipanupawufetasurorefi.pdfIn PDF document text
    • http://bugskin.org/userfiles/file/86173026177.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=bit+stand+upPDF link annotation
    • https://cakamuzejs.riga.lv/ckfinder/userfiles/files/gigowuvulu.pdfIn PDF document text

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