Malicious PDF — malware analysis report

Static analysis result for SHA-256 17424de5c0d5f20f…

MALICIOUS

PDF

57.5 KB Created: 2021-05-06 05:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 972d02e2e04f11a946f9958cd7c0da3b SHA-1: 7d82aace07198bd12e0e98200110797eb73ed852 SHA-256: 17424de5c0d5f20f099e04bb988afa35b55a4068bb1deb55eda53da42c4140f4
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple links pointing to compromised WordPress sites, likely intended to host malicious payloads. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically a phishing or trojan distribution campaign. The document body is heavily obfuscated and does not provide clear textual lures, but the presence of numerous external links to potentially compromised CMS uploads is a strong indicator of a download or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7337

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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/195f7dd363770415d79fb9ea0ff07bc8/tadatofegilizeran.pdf
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16086f16d4e13a---9311113332.pdf
    • https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607654d08bbbb---gobozamije.pdf
    • https://ailani.org/wp-content/plugins/super-forms/uploads/php/files/1b24bf6c1348916acb69169aae1808c8/22413703530.pdf
    • http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609154136cf23---lenudelufiso.pdf
    • https://amitadevnani.com/userfiles/file/fixebora.pdf
    • http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16081b0788f920---28565409035.pdf
    • http://aihyang.com/userfiles/file/21294879090.pdf
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/95nrkmcbk250pmt9cgi0a4rgf4/37953916689.pdf
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/8ncrfke5h9ekqo6153jvk2t3v2/75106545657.pdf
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/b6675a2652223d0ae15c941c05a02d5a/51011449072.pdf
    • https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/160869a284833e---bawebi.pdf
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/sv2do96ahl0mr725qficrqfg0d/96484263483.pdf
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160828b792c2c4---setuvobapi.pdf
    • http://akinmedikal.com/uploads/file/nakap.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f4527f0e5---73054243606.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=dhakad+chhora+song+video+full+hd

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