Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea75444768657a94…

MALICIOUS

PDF

57.2 KB Created: 2021-09-19 06:13:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 83a01cda77e0993a2b39ce702bc41d25 SHA-1: 6163a1a1cb9ce1d37913af593e70d61ee60a9532 SHA-256: ea75444768657a9421ff3409e606951070a8fde6a8e19c532afff549684f095b
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classifiers also flagged it as malicious. The primary attack pattern observed is the use of a link farm to redirect users to external sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6236

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://weforyou.it/userfiles/files/berewuwimosugeda.pdf In PDF document text
    • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/d50859db99d9b6a51c5256982dcab5f3/56151210626.pdfIn PDF document text
    • https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/983i5j1ua38n3eflg345m6a7s6/63609502262.pdfIn PDF document text
    • https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/xitofupuzikebavuved.pdfIn PDF document text
    • https://ost-fogging.com/upload/files/42208506645.pdfIn PDF document text
    • http://w-w.cn/isee/pfm/cms/uploadfile/fck/file/zojulexagipodelidagavaja.pdfIn PDF document text
    • http://studioaba.net/userfiles/files/dikifov.pdfIn PDF document text
    • https://northcoteplaza.com/userfiles/file/bevidopibopufozejitifin.pdfIn PDF document text
    • https://www.caissedesecolesdu5eme.fr/backoffice/ckfinder/userfiles/files/mutafujalufuv.pdfIn PDF document text
    • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/8k0933edarjoemc8jgcdksd51u/wafimuvofevukesiwadux.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/67959308842.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/0d971f6b3f42fcbca654b582ff86aafd/34766866901.pdfIn PDF document text
    • http://sun-green.be/ckfinder/userfiles/files/48931906360.pdfIn PDF document text
    • http://bangkokmagnetwire.com/ecodev_test/image_system/files/10836714876.pdfIn PDF document text
    • http://eamenfaraz.com/cache/fck_files/file/99676278812.pdfIn PDF document text
    • http://nieruchomosciklodzko.pl/files/file/79017257037.pdfIn PDF document text
    • http://bdpq.hungminhits.com/files/uploaded/files/wexizubowederivunado.pdfIn PDF document text
    • https://matao.ro/app/webroot/files/userfiles/files/lovemopupijabizevugilolu.pdfIn PDF document text
    • http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/a45bcf730a90ee0cf319315910667f7c/jiravoxorameduxowojig.pdfIn PDF document text
    • https://astoraccessories.com/uploads/ckfinder/files/bijegomovokerejab.pdfIn PDF document text
    • https://movingalpsfoundation.ch/userfiles/file/29706906486.pdfIn PDF document text
    • https://online-wums.com/files/files/5421102678.pdfIn PDF document text
    • http://xn--12cf1djdb6cbcafdbu1f1cudgcc8am4wf7htgd9de.com/ckfinder/images/files/98801436709.pdfIn PDF document text
    • https://agriplan-rs.com/dados/ckfinder/files/40554312011.pdfIn PDF document text
    • http://fxlcd.com/upload/file/nelezasozita.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=alternative+lucky+patcherPDF link annotation

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