Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ecc7dea8cb44fd0…

MALICIOUS

PDF

54.6 KB Created: 2021-08-21 14:16:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c38f978ba2426d35cc312ac3e6f7087c SHA-1: c24054b462da3b6a131b26148ae2e37b4725db79 SHA-256: 0ecc7dea8cb44fd0e8975fe742fa76a9d93b4b0035e0b41c8e02b49f7df948cd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file functions as a link farm, directing users to multiple external URLs hosted on compromised WordPress sites and disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URLs and the PDF structure suggest an attempt to lure users into clicking through to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9335

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://coretry.ru/uplcv?utm_term=fahrenheit+451+activity+packet+answers+part+1
    • http://ya-ke.cn/admin/upload/lefojenorod.pdf
    • http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/edikdr2g8u4j2nv4j15f05lnl5/tukokuxib.pdf
    • https://iword.de/userfiles/file/54956198026.pdf
    • https://goooinggroup.com/userfiles/files/20210730_191349.pdf
    • http://olimpic.hu/ckfinder/userfiles/files/42085080802.pdf
    • https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/16085c203e1312---guwaxidisax.pdf
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609c6219a935c---rakoxuvojubapofarasaman.pdf
    • https://dfa-finanz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a37e593611b---zawevemidedakorono.pdf
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/3a8f5d613af5a39b9a254e3e98d867a8/87296582827.pdf
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/2gaqafir0no0obdj8f74f2hd97/29836699597.pdf
    • https://brune-schmuckwerk.de/ckfinder/userfiles/files/xebod.pdf
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16072c469232bd---22568956812.pdf
    • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085bfbb81ea5---boveduni.pdf
    • https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073bda0a0b6c---56501904343.pdf
    • https://www.icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/razopisinegedimamewufa.pdf
    • http://synowka.pl/galeria/file/luwubaz.pdf
    • https://soechi.com/userfiles/file/46402374262.pdf
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/160f599e85ab05---28570555892.pdf
    • http://bkht.vn/userfiles/file/58173142388.pdf
    • http://holdemigny.fr/ckfinder/userfiles/files/sigujokesilutaletijejop.pdf
    • https://steklo-shik.ru/userfiles/file/nufogetamovikifavumaxuv.pdf
    • http://guoyangmoju.com/userfiles/files/sobedotiwuxitewugog.pdf
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/093f656c28db68779bb3d0485404c812/79474522097.pdf
    • http://93564497.com/userfiles/46003690123.pdf
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607dfdd27b2b3---84021111382.pdf
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/34f07989a0fa3461829ce7783d21ca45/54965908237.pdf
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a418a54dc4c---vofiwubadolamovaxafovo.pdf

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