Malicious PDF — malware analysis report

Static analysis result for SHA-256 f707eaf0f93a6b02…

MALICIOUS

PDF

54.0 KB Created: 2021-09-02 15:04:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: d9f4ef74a959aec9f3d239ce0116b659 SHA-1: 6a01a88b5e6b201afeaa4c05bc550428943d2ee9 SHA-256: f707eaf0f93a6b02837c4d5b5ade6025af6d251bfc3d81eea37f3da9ec899ccd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to compromised WordPress sites hosting other PDF files. This behavior is indicative of a link farm designed to distribute malicious content or phish users. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5367

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://lhdrum.com/User_File/UpFile/file/20210602004954_bmltYXRpbGlkZXNhdG9rdXhlYm9iZW5l.pdf In PDF document text
    • http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/m8fenvesejih14vjbta55gnr9m/lovesozepupagipar.pdfIn PDF document text
    • https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/9ik21s01e3vrs6qs6stdpg0spj/19981530608.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16086ba1019178---nivukazuzafijon.pdfIn PDF document text
    • https://dutchfansitenetwork.nl/ckfinder/userfiles/files/38136589642.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/e5fcbfb8d364135597ba17d1a3577865/11650321521.pdfIn PDF document text
    • https://luatsubienhoa.com/upload/ck/files/ribokowitujevoratamojal.pdfIn PDF document text
    • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/87b6e88f3def4f365be1c450b77f4b32/28891237160.pdfIn PDF document text
    • https://landi-bg.com/images/file/37656865215.pdfIn PDF document text
    • https://xo-sound.ru/userfiles/file/9596536641.pdfIn PDF document text
    • https://la-klamm.org/Files/files/xudujuvetowef.pdfIn PDF document text
    • http://kiuanai.com/userfiles/file/kanowaxunebotivufodixetox.pdfIn PDF document text
    • http://myjobcareer.net/userfiles/file/2021072815433673499.pdfIn PDF document text
    • http://k-souz.com/userfiles/file/67521504303.pdfIn PDF document text
    • http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160838f2b52780---sutosodivaz.pdfIn PDF document text
    • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/632b8be8f663604b2c13c70e1d60e831/82260302333.pdfIn PDF document text
    • http://fishtech.org/uploads/userfiles/file/file/wuwotojewatuludoxolavup.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/doti358vtnrkdmkr8volu027p4/85029135021.pdfIn PDF document text
    • http://abpaluso.com/upload/file/18079148397.pdfIn PDF document text
    • http://eluvial.com/sites/all/sites/eluvial.com/files/zuwenoluzaralalor.pdfIn PDF document text
    • http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160afd2f567f3a---vopagib.pdfIn PDF document text
    • http://littlepearlspublishing.in/data/eimages/file/relela.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/9ac92090a22daefeb3d407c73e7e55d4/10094725717.pdfIn PDF document text
    • http://premiumcsp.com/uploads/files/95456088424.pdfIn PDF document text
    • https://schmitz.cz/res/file/wewogedufidatetizep.pdfIn PDF document text
    • http://areaarchitetti.com/userfiles/files/42432038303.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=eneida+pdf+resumenPDF link annotation