Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f668cbbfc029122…

MALICIOUS

PDF

53.8 KB Created: 2021-06-07 19:24:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ded1ba5a7cbe8b246588c661049631ac SHA-1: 6944c87c105ffc2004f70179d8090ad2d36d5d64 SHA-256: 2f668cbbfc02912256ce5084e595038f51a4130990e8eadf56ec91ef91fc4f6d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to lure users to download potentially unwanted or malicious software. The ClamAV detection and ML classifier further support its malicious nature. While no scripts were explicitly extracted, the structure and URL patterns are indicative of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7181

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://pixomot.ru/uplcv?utm_term=cheat+droid+pro+apk+download+without+root
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/0eumue4rf5olr4r6j1qnf67gi2/69669646400.pdf
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/99c5554e9b8a24b35d8d56d43e480b60/watiteti.pdf
    • http://billedbutikken.dk/articlefiles/file/xepugibetimekut.pdf
    • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f166564e99---tibikomekuriritorozo.pdf
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/16079dfe858094---bidaxolokojewubuzipadu.pdf
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160aa6ff87532a---savinuru.pdf
    • http://americanpetrochemicals.com/customers/CMS-IMAGES/file/befivuvafoxobebi.pdf
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/36c49ff059de85c8e6764ffa09ac06fd/34422819167.pdf
    • http://nowyhotelik.pl/userfiles/file/vavubefakomow.pdf
    • https://calmoinc.com/upload/editor/file/tujasodafulatago.pdf
    • http://www.dramayaramendes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f06765ccfe---51310438787.pdf
    • https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/02cf9bf47670018059ad53cb7f70cbe5/popogobasu.pdf
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/f31ouo2b2aig7m6fr9f026b260/zuzib.pdf
    • https://btegypt.com/file/poxesogibi.pdf
    • https://olmitek.by/wp-content/plugins/super-forms/uploads/php/files/k2fsk7opjm3m4dbpdg2bbf5od7/97145538509.pdf
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1966ca9e9---62944522488.pdf

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