Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7455b0bf5339651…

MALICIOUS

PDF

76.9 KB Created: 2021-09-16 05:56:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 7fa563138902123c4f480a281d7fb099 SHA-1: 02968e8abc8b06f94443a50829ce59a9f2770f49 SHA-256: f7455b0bf5339651767cd47b3b87f84b9712fcb270d0ff149470dd5458243626
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with several heuristics indicating it functions as a link farm. Notably, some links point to compromised WordPress upload directories, suggesting a potential distribution point for malicious content. The ML classifier and ClamAV detection further support its malicious nature, likely as a phishing or malware delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5601

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://ufcnagykanizsa.hu/userfiles/file/gudusakominup.pdf In PDF document text
    • https://mirrorlink.com/public/files/files/ruladopujezoju.pdfIn PDF document text
    • https://datajournonepal.org/files/48843440534.pdfIn PDF document text
    • http://wtmongolia.com/materials/file/wujaliwonaji.pdfIn PDF document text
    • http://zulassung4you.de/bilder/file/17212896809.pdfIn PDF document text
    • http://signauction.net/userfiles/file/guxunevetimepuxixin.pdfIn PDF document text
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/mf29aarqtsh20c8snkqsrirkjl/5348661264.pdfIn PDF document text
    • http://queenart.kr/userData/board/file/5518604161.pdfIn PDF document text
    • https://museuminiaturesbesalu.com/files/dikupoj.pdfIn PDF document text
    • http://etkindenetim.com/resimler/files/76248303786.pdfIn PDF document text
    • http://marchmont.ru/imgs/file/96646041350.pdfIn PDF document text
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ea206aa91f---tawij.pdfIn PDF document text
    • https://enville.com/wp-content/plugins/formcraft/file-upload/server/content/files/161428c6094354---90289757424.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614074c41f1d5---72777410901.pdfIn PDF document text
    • http://eatatrudy.com/uploads/files/tememaxa.pdfIn PDF document text
    • http://cozycornerexpress.com/uploads/files/87350450158.pdfIn PDF document text
    • http://fujiya-la.com/uploads/files/pejanomupav.pdfIn PDF document text
    • http://farmina.ru/uploads/files/gabezofoxejif.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/161379c9fe5fb8---64298538763.pdfIn PDF document text
    • http://ilkconstruction.com/Images/Media/files/98914043434.pdfIn PDF document text
    • https://lockerova.eu/admin/upload/documents/51417164890.pdfIn PDF document text
    • http://www.tractortools.cz/ckfinder/userfiles/files/76262940326.pdfIn PDF document text
    • http://aesg2edcv.handylover.com/upload/files/84787237590.pdfIn PDF document text
    • http://lignumweb.com/site/webroot/uploads/files/jutoperererugugitubaliw.pdfIn PDF document text
    • https://cafesca.info/ckfinder/userfiles/files/zuxedadobote.pdfIn PDF document text
    • http://kuppersbusch.hu/userfiles/files/tajedebebebozinutepok.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=final+fantasy+7+remake+2+discsPDF link annotation

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