Malicious PDF — malware analysis report

Static analysis result for SHA-256 b8758064eb7fcdbe…

MALICIOUS

PDF

51.2 KB Created: 2021-06-26 10:29:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 40bdbd3980af66dcef586c382ac19dd1 SHA-1: c186db91dd86f7420f26fc5664232565bfe2c956 SHA-256: b8758064eb7fcdbe6c86f106ac98a0ecfa86c2ded766bc0d14906e31e6128fe8
154 Risk Score

Malware Insights

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

The sample is a PDF document identified by ClamAV as Pdf.Phishing.Trojan. It contains a link farm with numerous URLs, many hosted on compromised WordPress sites, suggesting an attempt to direct users to malicious content. The ML classifier also flagged this PDF as malicious with a high score.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8963

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://hayatteknoloji.com/webimage/file/ziwodizol.pdf In PDF document text
    • http://www.dereformasenalicante.com/archivos/files/58380962653.pdfIn PDF document text
    • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/66pui8i5jk657i38lguv1hvm6n/nasanozu.pdfIn PDF document text
    • http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad3aaf4caea---gepixefitoxil.pdfIn PDF document text
    • http://goref.ru/files/file/koxapenofuvi.pdfIn PDF document text
    • http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16081c628a1ff3---pinomopozuwejaxo.pdfIn PDF document text
    • http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160a6944fb0dce---12472069868.pdfIn PDF document text
    • http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/160b853b86f6d2---funoraroxasoba.pdfIn PDF document text
    • https://auto-rujo.com/images-editor/file/wakif.pdfIn PDF document text
    • http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607120a897081---bivokalapewuw.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3509e1ff30---bivamokukadurukemi.pdfIn PDF document text
    • http://myucmas.com/userfiles/file/78091236725.pdfIn PDF document text
    • http://garantc.ru/userfiles/file/bojeserot.pdfIn PDF document text
    • http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/ihr3gmbcblo7tmri2kad64hv5l/504270258.pdfIn PDF document text
    • https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/3eabda9cdae7ab05a62e2e68fb9df064/rawupevo.pdfIn PDF document text
    • https://accesoriosalmayor.com/images/userfiles/file/89446543498.pdfIn PDF document text
    • http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/32e56edbe81a364cd905bc84effc59cb/10898413362.pdfIn PDF document text
    • https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/1d33837dbaba279a4b1b6433937dbec8/81881505331.pdfIn PDF document text
    • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607792f3cb241---tiwaveg.pdfIn PDF document text
    • https://www.citysecurity.org.uk/wp-content/plugins/super-forms/uploads/php/files/g80udigutcbr9436h922l1kgda/47603407358.pdfIn PDF document text
    • http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16089542c94155---kotigu.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/97941299774.pdfIn PDF document text
    • https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/30d7e5b91024c616f4462dd8a3ec91cc/lijolinomatulalojuvozixe.pdfIn PDF document text
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/95df88fc0b45bbc1749eac2760693137/91851749369.pdfIn PDF document text
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608692914bdd6---pewetufo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=conditional+probability+examples+with+solutionsPDF link annotation

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