Malicious PDF — malware analysis report

Static analysis result for SHA-256 17d95970fdf4c4ed…

MALICIOUS

PDF

61.2 KB Created: 2021-09-01 09:11:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-31
MD5: e5dcdaa62ebbf308979de7c76d91f5d5 SHA-1: c9390a1baf2434d02e14b786ffd1e122a09ef658 SHA-256: 17d95970fdf4c4edd48cfddbf38b1370be0a835e08da68857665b40a72c1994f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm pointing to multiple compromised WordPress upload storage locations and other disposable hosting. The primary purpose appears to be directing users to potentially malicious content hosted on these sites, likely for phishing or malware distribution. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9664

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 https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/eens2u5ph3ctbt0oc3445vi9cr/10074490319.pdf In PDF document text
    • http://bluecreator.biz/ckfinder/userfiles/files/mibokupuxivezoliwepar.pdfIn PDF document text
    • https://swift-tw.com/lcc/upload/files/1233630468.pdfIn PDF document text
    • http://transcash.com/ci/userfiles/files/75957231679.pdfIn PDF document text
    • https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c761299962---73966232461.pdfIn PDF document text
    • https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/5849111b41b855db61496b42617c3622/77399509891.pdfIn PDF document text
    • https://premium-house.uz/images/file/44631335882.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef4ff1d655---turuzuposogelisikute.pdfIn PDF document text
    • http://mishelik.ru/userfiles/file/madomef.pdfIn PDF document text
    • http://sushibelovo.ru/files/lepifofegumusiwavurotir.pdfIn PDF document text
    • https://susta.vn/userfiles/file/39011607503.pdfIn PDF document text
    • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b06b31dfa2e---78072064798.pdfIn PDF document text
    • https://eitmedu.in/ckfinder/userfiles/files/faketujimesamujam.pdfIn PDF document text
    • http://bygreenpure.com/userfiles/file/58880196318.pdfIn PDF document text
    • http://nct-vn.com/userfiles/file/45428338231.pdfIn PDF document text
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608566208da15---fokamutonow.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/22456537048.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/16072646a89512---8268327094.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610e5b318922a---47906032964.pdfIn PDF document text
    • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b428a8fa4---97825236091.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c95e99e7d3---dumapalopokusozelejaxi.pdfIn PDF document text
    • https://dunaweb.co/bg_image/files/vuxasipepizedisuworume.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=agamben+what+is+an+apparatusPDF link annotation

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