Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fd7e2301358244e…

MALICIOUS

PDF

62.0 KB Created: 2021-07-03 19:58:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: ff42654b9da408cc50ca186962892f0b SHA-1: d771b4aab793b9cb24b72572168f3537d2f67b14 SHA-256: 2fd7e2301358244e1979cd682e7afd94b0fbe6f7a518e2566a14d487a19b6dd8
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, containing numerous URLs that point to various websites, some of which are hosted on compromised WordPress installations. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement, common in phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

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 https://coretry.ru/uplcv?utm_term=best+online+video+converter+to+mp4 PDF link annotation
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/bc5b985f1e8758c48bb846d29d0e783e/mogadorabigekebo.pdfIn PDF document text
    • http://bowlinggreenhsclassof66.com/clients/b/bd/bdf8ab256cd88a603fc2b95a051c5839/File/80516680973.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/88327208913.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/3e813ef7328d31f678c6a3cf97e73b93/66345358438.pdfIn PDF document text
    • http://hitecds.com/userfiles/file/21904472807.pdfIn PDF document text
    • http://www.kickcommerce.com/userfiles/file/86388197820.pdfIn PDF document text
    • http://domplus.su/userfiles/files/rumus.pdfIn PDF document text
    • https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/rfvqhmt2f4ut7vt152peeh8g9b/80562809427.pdfIn PDF document text
    • http://edu-family72.ru/content/images/uploads/file/powamutaliduputikorigakot.pdfIn PDF document text
    • http://primebrokeragetx.com/ckfinder/userfiles/files/xojodekiluzobolefazarik.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/16076582b3961c---51391431560.pdfIn PDF document text
    • http://www.moyekolodin.com/files/14496981039.pdfIn PDF document text
    • https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/4639bdfa15eca865cd995406355f9606/nemomox.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aae23e4c8ce---fuxiwinazaligure.pdfIn PDF document text
    • http://cuatro-pr.org/sites/default/files/file/44320079980.pdfIn PDF document text
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/db88r8kgro6fr7uka21uenhsr5/19191730482.pdfIn PDF document text
    • http://opakowania-loga.pl/zdjecia/fotki/file/zudidizasisubonilagor.pdfIn PDF document text
    • https://kisikana.hr/userfiles/file/22942619415.pdfIn PDF document text
    • https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a238d1d6b15---perokonenefepugudiwozoj.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/sj3a7sclb9ilca0hqv74h7dgij/47818508049.pdfIn PDF document text
    • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/b0d11315691518a0d58b059f7212c1b4/musowulegu.pdfIn PDF document text
    • http://hf1968.com/clients/48820/File/91143969078.pdfIn PDF document text
    • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/959d2cf7dd7d181d8d54eb0b3c0a1e9c/15522727164.pdfIn PDF document text
    • http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16075a6ccdf01a---84887042481.pdfIn PDF document text

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