Malicious PDF — malware analysis report

Static analysis result for SHA-256 06b7c7ca2e0c2e69…

MALICIOUS

PDF

58.1 KB Created: 2021-09-04 01:52:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: b02663593718e32b504da431c028e6e8 SHA-1: 2647921f5b825b42805ba4995a20dc2ca9651690 SHA-256: 06b7c7ca2e0c2e69f9b9b46a588cda68612fa1a33dea834e3610b92ad81ca518
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier further support its malicious nature, likely serving as a lure for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://waterreducer.cn/d/files/notazilifino.pdf In PDF document text
    • https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f83c31e737---vemananajaxarogoleji.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073db4d9b45a---rejupaxigeribupekafa.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612b3a9d8f0f1---76019237618.pdfIn PDF document text
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d0238c407d7---livofigitonefora.pdfIn PDF document text
    • https://clumba-indoor.ru/files/files/68266349729.pdfIn PDF document text
    • https://thisissati.com/userfiles/files/73473689827.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/c424dbe8661a0d58e502e6302d2af9a8/wetazaxunozorinaseduroz.pdfIn PDF document text
    • http://parcfamilyreunion.com/clients/b/b3/b3ae52aef0329bb57e848b27182677c8/File/35879713753.pdfIn PDF document text
    • http://kxqcgs.net/filespath/files/20210804054608.pdfIn PDF document text
    • http://bigsvatcharasith.com/userfiles/file/46664700626.pdfIn PDF document text
    • http://xn--oy2b9bv81anouola.com/upload/file/202108110637509904.pdfIn PDF document text
    • http://dekoblickfang.de/userfiles/file/xaxivitanefereba.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082b7ef4e682---polojuxetobipirule.pdfIn PDF document text
    • http://candientushinko.com/images/file/57117582968.pdfIn PDF document text
    • http://booklandbooks.com/userfiles/file/91138413142.pdfIn PDF document text
    • http://csc0516.com/userfiles/file/20210719192422_62jime.pdfIn PDF document text
    • http://solar-makernavi.com/ckfinder/userfiles/files/51841957549.pdfIn PDF document text
    • http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/evlt5kutum26n6gsou7abb8e76/nirapowoweledenegow.pdfIn PDF document text
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bdb844bc656---vonenigivef.pdfIn PDF document text
    • https://businessincasey.com.au/application/third_party/ckfinder/userfiles/files/99871806418.pdfIn PDF document text
    • https://ptkas.com/kingkong/userfiles/files/zumoxedu.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1609a71a0de51f---88171093721.pdfIn PDF document text
    • https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/b7e5e513371d8f45039b7a0c767c6544/jirososozusok.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=tnpsc+group+1+syllabus+2019+pdf+downloadPDF link annotation

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