Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ee1b1bbb66506ed…

MALICIOUS

PDF

48.7 KB Created: 2021-09-16 19:58:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0df830f23fa7c4b70baeb406dc393c5a SHA-1: 8669b4c76a0b3dad88052b39744bc0014f6c925b SHA-256: 0ee1b1bbb66506edebd4f059ac6663b14b22ab6b159afe9ad84dd051e17aa66d
154 Risk Score

Malware Insights

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

The PDF contains a large number of links, many of which point to domains that appear to be disposable or compromised CMS uploads. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware delivery through these links. The file's structure and URL patterns are consistent with a link farm designed to obscure the final destination and evade basic detection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6680

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://oa30us.com/userfiles/file/29812305575.pdf
    • http://velo.hu/UserFiles/file/xiluxarezol.pdf
    • http://myphamlulanjina.com/upload/files/88743045368.pdf
    • http://immobilieninvestors.eu/userfiles/file/96531431977.pdf
    • https://twinscooking.nl/twins/userfiles/file/bezajoj.pdf
    • http://casier-a-bouteilles.fr/file/fobenifexades.pdf
    • https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/874c4b9d4eae46b55b2e378d3d9d22bf/78943061913.pdf
    • http://cokhihoangvinh.com/uploads/userfiles/file/57720391912.pdf
    • http://artbaget.net/admin/ckfinder/userfiles/files/77778504016.pdf
    • https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613cabcbe6cc0---zukimabog.pdf
    • http://cukorbetegshop.hu/files/sunedebesakigibofo.pdf
    • http://daiichilogistics.com/uploads/news_file/dawijuvoninifara.pdf
    • http://changrung.com/ckfinder/userfiles/files/menegifemusekare.pdf
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613c9bbd15cee---fepidoraroresuzor.pdf
    • http://windowsplusllc.com/ckfinder/userfiles/files/fobibalejifijeralu.pdf
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc89754f42---56645898320.pdf
    • https://nevisnews.com/userfiles/30577425921.pdf
    • http://bluecars.pl/userfiles/file/kademabetama.pdf
    • https://envida-nieuws.nl/bsb_website/upload_fck/file/watokawuni.pdf
    • http://kondicionery-dolgoprudny.ru/upload_picture/file/63607995507.pdf
    • http://www.mariabeckmann.com/fotos/uploads/files/15658003527.pdf
    • http://grafiport.com/userfiles/file/pozitogokugumasotuwo.pdf
    • http://connect-event.fr/ckfinder/userfiles/files/28975365579.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=sirasa+tv+live+free+watch+online

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