Malicious PDF — malware analysis report

Static analysis result for SHA-256 766040f7eede6a59…

MALICIOUS

PDF

41.5 KB Created: 2021-09-25 00:56:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 17da92ccf28800f0c6be7bee91ff7723 SHA-1: b21a2e8c57614341a078175cef2281da8c3a93f9 SHA-256: 766040f7eede6a59c2a87942f8f661241eddc6f3362714cfb83cfcae2d9eba14
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as a phishing lure due to its image-only nature and embedded clickable links. The heuristics indicate it's designed to redirect users to external sites, likely for phishing purposes. The presence of multiple links pointing to compromised CMS upload directories and disposable hosting further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6964

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://refinerlink.com/userfiles/file/75686810620.pdf
    • https://uleiuri.ro/userfiles/file/51696254686.pdf
    • http://staractivecollection.com/resimler/site/files/balebilinekenit.pdf
    • http://www.ks-klinika.ru/ckfinder/userfiles/files/14157775440.pdf
    • http://osteriadelcampanile.com/userfiles/files/200726886.pdf
    • https://degardo.hollandpazsit.hu/ckfinder/userfiles/files/zudexotobijizodilaj.pdf
    • http://progfin.pl/userfiles/file/gebuwimojeduterinijudexuw.pdf
    • https://webmakler.org/userfiles/file/62588136586.pdf
    • https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/g7pc0tk0qa2e6t6u7smsbs6s8s/fomubepofupawe.pdf
    • https://dnsbp.com/all4help/fckuserfiles/file/wojodonomufev.pdf
    • https://safarekhoob.ir/basefile/safarekhoobir/files/xagokiminijom.pdf
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143a2e7eb665---xewovugixago.pdf
    • http://gangwonbnb.com/FileData/ckfinder/files/20210907_695887820BE14C73.pdf
    • http://zbraneklapka.cz/ckfinder/userfiles/files/vobadikejabis.pdf
    • https://dichvumayphoto.vn/webroot/img/files/88922548178.pdf
    • https://chulintemple.org/CKEdit/upload/files/sutabilu.pdf
    • http://banghetretruc.com/media/ftp/file/6951803629.pdf
    • http://liebherr-tr.com/userfiles/file/jibanu.pdf
    • https://stiff.pl/ckfinder/userfiles/files/49388441295.pdf
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614424652fcd4---11337031430.pdf
    • http://fge-service.com/userfiles/file/68458967217.pdf
    • http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16135f8df26b47---17073774266.pdf
    • http://autowassenindex.nl/images/uploads/96823829233.pdf
    • http://admio.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16141b7f669ce7---balosejimix.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=watch+say+yes+to+the+dress+season+17+online+free

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