Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8aa1c69f6adb647…

MALICIOUS

PDF

50.3 KB Created: 2021-05-03 15:51:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d718e96454f4457d3eef7f9e515b13c SHA-1: 69ec8964205250c2cf712a7a63e10758f5ba61d7 SHA-256: e8aa1c69f6adb647a012ba032c1205ba2dd3b9be8bf8ebb5eea8631191d6c65c
154 Risk Score

Malware Insights

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

This PDF file was detected as a phishing trojan by ClamAV and flagged by an ML classifier. It contains a link farm pointing to multiple compromised WordPress sites, specifically targeting their upload directories. These links likely lead to the download of further malicious content, such as other PDFs or executables, to deceive the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6925

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://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/mer2ku62krpocluhfqk6psh984/kegoregulesozimet.pdf
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe194ca07c---91229669125.pdf
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160868cb89e159---ginorosuxitoveva.pdf
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/00549292085dfc053d3170cc54ad0308/vunebimuzejofefixalazexas.pdf
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/7d1a44739c1b4b50b013d539ed471d29/53883581017.pdf
    • https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16085f0d8739a6---jerudurilijif.pdf
    • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/fb0c69ed4234a270c6be454d15b8ca9b/80633872375.pdf
    • https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/f2ab15f853783d6d348c512321c7e475/giregeritelerapa.pdf
    • http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/t6idlbvlo85l7galqne1m2q9go/13300503453.pdf
    • https://kamber.dk/wp-content/plugins/super-forms/uploads/php/files/ede188e478c16cd37e4bb50e43945636/nowizijijekolewojiviwej.pdf
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/8ic54cojrsk8uj8ms49bphpovp/bodok.pdf
    • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b0e65e3d91---vixutofimibikesipagive.pdf
    • https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086add01261f---21659564214.pdf
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/f758feb473c878c872e88f98b4f8c991/ximojopukasovopukogi.pdf
    • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/a1c016fec12dfc38df0ab5909e9d0120/vetabaxomamuderaw.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=sistem+renina+angiotensina+aldosterona+pdf

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