Malicious PDF — malware analysis report

Static analysis result for SHA-256 414c8ec7c876d2bc…

MALICIOUS

PDF

49.7 KB Created: 2021-07-19 13:13:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 4f74681030d8f3a65ec79a6b1fb250fa SHA-1: de65acc30cd040ff24be411633314d835c6ce549 SHA-256: 414c8ec7c876d2bc6ba865f8159d92169e8bf93738126a4ff4cc63e317482fac
154 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains a large number of links, many pointing to compromised CMS upload storage or disposable hosting, suggesting it functions as a link farm. The primary purpose appears to be directing users to potentially malicious external websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6843

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://sy-tech.eu/file/rakazemoxewovorad.pdf In PDF document text
    • http://emeat.ru/var/files/fekexasumosozusakejajodu.pdfIn PDF document text
    • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/1c7539d590c13dc1a81a1169be0ecc58/56370008336.pdfIn PDF document text
    • http://aaaexpressheating.com/userfiles/file/tewubedenulofevifex.pdfIn PDF document text
    • https://engineeredrepinc.com/wp-content/plugins/super-forms/uploads/php/files/a632d1f6b5258a5e539c1ad2af562a83/pitija.pdfIn PDF document text
    • https://alianzatours.com/imagenes/file/62424372364.pdfIn PDF document text
    • http://amblesidewindermere.ca/fckuploads/images/file/lezax.pdfIn PDF document text
    • http://uptownherndon.com/uploads/files/11632107287.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6726a8391---2854574296.pdfIn PDF document text
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4c3a6a4ed---xerozivo.pdfIn PDF document text
    • https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/662825e1b2dae87c7fb65457aa60773b/loliku.pdfIn PDF document text
    • https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/5n27tn2g9972jsp18krn4ncg2q/50397545433.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160861763ecd04---3177358122.pdfIn PDF document text
    • https://spaslask.pl/wp-content/plugins/super-forms/uploads/php/files/go73fa2eugcp82brbsd2qemk5a/99086306417.pdfIn PDF document text
    • https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/qus33splks9idebm7r9jjjth74/14137606975.pdfIn PDF document text
    • http://konyaozgunmobilya.com/userfiles/file/gojagagisefuzezukoxu.pdfIn PDF document text
    • https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/a3abec920788a5a05fabf94d7eaaa4fc/36509409644.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c60c8df1c0f---50933078308.pdfIn PDF document text
    • http://hzqzg.com/d/files/28905080122.pdfIn PDF document text
    • http://www.yoko-ono.be/images/userfiles/file/sisoxejatipekakezidepo.pdfIn PDF document text
    • http://teormech.ru/teormech/usrimg/file/110704287.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=jonathan+dickinson+state+park+rv+campingPDF link annotation

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