Malicious PDF — malware analysis report

Static analysis result for SHA-256 655678d727946344…

MALICIOUS

PDF

46.9 KB Created: 2021-06-20 22:35:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b3d2c37cf0835bbfd6e4ef4faf0f0203 SHA-1: 92795bfb2e4817ba90915b28d1a984a89446cf00 SHA-256: 655678d7279463442319bf081d442d5bb0ad1f273841cd2fce542ba53d5843ce
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm designed to redirect users to potentially harmful websites. The document body, though obfuscated, contains text suggesting it is a lure for 'Hebrew greek english interlinear bible pdf', likely to trick users into clicking embedded links. The presence of numerous external URIs and links to compromised CMS uploads indicates a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7170

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 https://garglob.ru/uplcv?utm_term=hebrew+greek+english+interlinear+bible+pdf PDF link annotation
    • http://reicar.dk/userfiles/file/safexoxijefubepepo.pdfIn PDF document text
    • https://jjmassociates.com/wp-content/plugins/super-forms/uploads/php/files/2f3a7271fd1d287d8246171df9ccf9d4/lugowadupa.pdfIn PDF document text
    • https://istanajp2.com/contents//files/91922113232.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc038ca064---tuzuzew.pdfIn PDF document text
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/cf7024c12e759bf9c3c35f3b5a2a5f70/14644237872.pdfIn PDF document text
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/51dj21ui1dpaa3atke1mk3s9t0/91850529594.pdfIn PDF document text
    • http://adabaskimerkezi.com/upload/file/zemesurodutikar.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a76de1f019f---basorifuwosubipe.pdfIn PDF document text
    • https://sieuviet.net/webroot/img/files/xawobo.pdfIn PDF document text
    • https://lion-trading.co.uk/wp-content/plugins/super-forms/uploads/php/files/d6295871ohqrh9a2vmgo47p4gc/38683072231.pdfIn PDF document text
    • http://emeraldcovepartners.com/_data/images/file/27268140847.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab891ee905---9526965734.pdfIn PDF document text
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fad3c8a4d1---28175498401.pdfIn PDF document text
    • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/pbrt1qs5im2rsal9b4m1vimdvv/ritaxutakewagisum.pdfIn PDF document text
    • https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/319aa88290670962deda0003317005d5/punamolepomajex.pdfIn PDF document text

Related samples 8

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