Malicious PDF — malware analysis report

Static analysis result for SHA-256 be62bf5d16ae9a12…

MALICIOUS

PDF

45.8 KB Created: 2021-09-19 15:09:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-07
MD5: 708bafda37f1f49142ab279701d758db SHA-1: 6fcafcceeb3a64fb3ff4a01a68e4ae0255befcea SHA-256: be62bf5d16ae9a12990acc6274d48aec9469bdaa7ac8166c411d62f563493b28
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable domains, indicating a link farm designed to lure users to malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8308

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 https://allytemp.ru/uplcv?utm_term=galo+apk+free+download PDF link annotation
    • https://www.mtiwelding.co.uk/admin/ckfinder/userfiles/files/gibanadezojawemivilajuw.pdfIn PDF document text
    • https://olterus.com/contents/files/29649512912.pdfIn PDF document text
    • https://vwb.mrv-educationservices.com/content_file/files/88550590280.pdfIn PDF document text
    • https://sindicav.com.br/ckeditor/ckfinder/userfiles/files/tajatexenupi.pdfIn PDF document text
    • https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/5a5b1474562e9242b53b915f6c172168/wavezogilamewi.pdfIn PDF document text
    • http://zsmnowakowski.pl/userfiles/file/99759932452.pdfIn PDF document text
    • https://gertiesbloomers.com/kousumi/nulook/upload/fckimages/file/16362836219.pdfIn PDF document text
    • http://travelbilet.ru/sites/default/files/file/xizotib.pdfIn PDF document text
    • https://abofahed.com/userfiles/file/32237143805.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/qsl8f6cg8s26dip721pq04iivu/vavunuwigonas.pdfIn PDF document text
    • http://kompletucetnictvi.cz/files/file/78508177411.pdfIn PDF document text
    • http://chandigarhdatarecovery.com/files/file/zenajobu.pdfIn PDF document text
    • http://gomsuhoangminh.com/app/webroot/uploads/files/70849735791.pdfIn PDF document text
    • http://nusratali.com/userfiles/files/nujeresaw.pdfIn PDF document text
    • http://gma.ge/admin/ckeditor/ckfinder/userfiles/files/19947721816.pdfIn PDF document text
    • https://www.premiumtrade.ro/ckfinder/userfiles/files/jinino.pdfIn PDF document text
    • https://perfecthospital.net/FCKeditor/file/13703801739.pdfIn PDF document text
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/09eivhe2a4h4v2pis6j5dug233/40545911558.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/0baa5f09a4ab94dfa3f7a27f4f95d6e1/76657875381.pdfIn PDF document text
    • http://ultraljud.nu/bild/files/1476460841.pdfIn PDF document text
    • http://cs-golfclub.com/ckupload/files/vuditoleji.pdfIn PDF document text
    • http://jarauwerdaenzn.nl/userfiles/file/lunilofusijujixu.pdfIn PDF document text

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