Malicious PDF — malware analysis report

Static analysis result for SHA-256 f02dd7ee365f7b0d…

MALICIOUS

PDF

54.4 KB Created: 2021-09-08 06:26:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: a0b7531aa125e18091c1ebffa7d390b7 SHA-1: 079f73ad85beece57b1cb55ec8f69c3dfc4021a0 SHA-256: f02dd7ee365f7b0da96941355caa08d9433f79eb1c1f176497cf2712f1d879f5
154 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm. It contains numerous URLs pointing to compromised WordPress sites, suggesting an attempt to redirect users to malicious content or phishing pages. The presence of multiple distinct hosts and the use of 'utm_term' parameters indicate a coordinated effort to distribute malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6438

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://hoshitorionline.com/uploads/files/xujujunasekilolaguvezake.pdf In PDF document text
    • https://chinese-wall.tw/upload/files/mokaje.pdfIn PDF document text
    • http://szpk.hu/_user/file/74547541776.pdfIn PDF document text
    • https://svetpoznaniyaonline.ru/wp-content/plugins/super-forms/uploads/php/files/fbab954e8940f5f856dc561221191143/jiwaxorolipakinizopu.pdfIn PDF document text
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f436b00d02---tilinugugopapiwujopuxebo.pdfIn PDF document text
    • http://divyabodhanam.org/userfiles/file/vevubawufamutonifubara.pdfIn PDF document text
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/6f8489b4dfa3f78e932eb289e7e85080/97594299778.pdfIn PDF document text
    • http://fanti-fitness.pl/uploads/assets/file/50580380336.pdfIn PDF document text
    • http://yasaitogo.com/uploads/files/xinodujinavikujedobaf.pdfIn PDF document text
    • https://rajaketiga.com/contents//files/52822724754.pdfIn PDF document text
    • http://shqinze.net/admin/upimg/file///19504740360.pdfIn PDF document text
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160857e8e8f08e---8095715223.pdfIn PDF document text
    • http://norilskgu.ru/userfiles/file/40880456213.pdfIn PDF document text
    • http://neo-net.info/giganet/files/file/zonebokupopabijo.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/04180b4bf4a8a182dac2e7f1e1be11cd/6286972952.pdfIn PDF document text
    • http://learnersdigest.org/userfiles/file/wofipoliwajoli.pdfIn PDF document text
    • http://moscowfashion.net/content/xuploadimages/file/18300269737.pdfIn PDF document text
    • http://www.amedna.com/userfiles/files/87604139729.pdfIn PDF document text
    • http://metall-press.ru/files/nojojagixurudipesotunosi.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/j3jkcvv0amsjega1mlj48j1mv5/31106578409.pdfIn PDF document text
    • http://robertfeinberglaw.com/images/edit_images/file/fapilusejukivir.pdfIn PDF document text
    • https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/98hfmiqjv7jt3fdru9hjhdet4e/mejomifesideturevatemif.pdfIn PDF document text
    • http://tlumacz-francuskiego.pl/userfiles/file/sanenalisawiwimutisatogoz.pdfIn PDF document text
    • http://ingmontagna.com/userfiles/files/16711682873.pdfIn PDF document text
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c8b58687463---2007954628.pdfIn PDF document text
    • http://brukbet.com/user_images/file/5102408710.pdfIn PDF document text
    • http://www.synagoge-stommeln.de/ckfinder/userfiles/files/dibaxok.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=compress+pdf+adobe+photoshopPDF link annotation

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