Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a40e27f580d5f6…

MALICIOUS

PDF

64.0 KB Created: 2021-09-09 23:13:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: a6e0857c90c72dd78af58b4d4f323ab1 SHA-1: 5189e748f70ce920b31894fa2a327ba4655f756a SHA-256: 30a40e27f580d5f677a5fd43426fa13141d2b8d96201c939e938397e4b160b55
124 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, with one heuristic specifically flagging it as a link farm on disposable hosting. The presence of many external URIs suggests an attempt to redirect users to potentially malicious websites for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7982

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://mamolenasnc.it/userfiles/files/zenudi.pdf In PDF document text
    • https://carlojans.com/cms/file/patodojutitutolet.pdfIn PDF document text
    • https://vegastel.eu/components/com_mijoshop/opencart/image/data/files/vizevimoweva.pdfIn PDF document text
    • http://smwiarus.pl/ckfinder/userfiles/files/mefosunafimufufotofulam.pdfIn PDF document text
    • http://dietetyka-24.pl/images/files/8197261190.pdfIn PDF document text
    • http://antitumor.org/filespath/files/20210903051155.pdfIn PDF document text
    • http://geombiagioschettino.eu/userfiles/files/fajedis.pdfIn PDF document text
    • https://actorconseil.com/files/file/tavuzatosogibofudumaj.pdfIn PDF document text
    • http://ngocvietbungalow.com/upload/files/92593906657.pdfIn PDF document text
    • https://digicpictures.com/downloads/11126794367.pdfIn PDF document text
    • https://patriciogaete.com/upload/file/setopitolakosumekad.pdfIn PDF document text
    • https://khonggiansangtao.com/platformecom/img/upload/file/zujonuzixujak.pdfIn PDF document text
    • https://www.chortho.co.uk/wp-content/plugins/super-forms/uploads/php/files/her739k0eb9k2f7v7jt8qf2pbi/11882267782.pdfIn PDF document text
    • https://ienter.bg/files/fuvebaroxepi.pdfIn PDF document text
    • https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/39824062083.pdfIn PDF document text
    • http://sualpturizm.com/userfiles/file/vawelezekiwe.pdfIn PDF document text
    • https://mk-sito.it/uploads/file/78434426763.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161310724f3021---30751057512.pdfIn PDF document text
    • https://stomatoloska-ordinacija-rijeka.com/files/ragetepose.pdfIn PDF document text
    • http://futboltotal.net/images/files/25825556808.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=make+a+video+your+lock+screenPDF link annotation

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