Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d67ad1d8bcb7c65…

MALICIOUS

PDF

79.6 KB Created: 2021-07-16 11:56:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 2b0603839ab9a15ef13fe509464ae2b1 SHA-1: bb45c7fa6b58b09ab8d384c2ecf8307433d9f809 SHA-256: 2d67ad1d8bcb7c65fb7b659ac088f8979b923a9eedf4f4c90491479db64b3c33
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and exhibits characteristics of a link farm, with numerous URLs pointing to compromised CMS upload directories. The PDF document contains embedded URLs that likely lead to phishing or malware download sites. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to malicious content, aligning with spearphishing tactics.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4833

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://fourseasons.events/wp-content/plugins/super-forms/uploads/php/files/8376e08b12e62a619254849807f6d768/73443972865.pdf In PDF document text
    • https://tempegaring.com/contents//files/83282100306.pdfIn PDF document text
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/k6v32m3p59di776eg17j18sg66/81962896756.pdfIn PDF document text
    • https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609d3336e48c5---86786816685.pdfIn PDF document text
    • https://kassa-evotor.ru/wp-content/plugins/super-forms/uploads/php/files/9mo2qu11aepem1jl6hi431d986/ziwowipux.pdfIn PDF document text
    • http://sacoorhealth.pt/site/upload/file/disurej.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607b3bddeb20e---91220034649.pdfIn PDF document text
    • http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/44f14d1d3b337f2c2411d4fb5d5c3e1a/6799503943.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160829a1c12867---nesusiren.pdfIn PDF document text
    • http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160dbc76abbfee---sukodosebapilenatixa.pdfIn PDF document text
    • http://piau-po21inn.com/CKEdit/upload/files/90138591909.pdfIn PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/723493cb94a65968819252d642018cfa/gikunin.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/ce1895d8b6c5e1423214eaed36688d07/bedafexupod.pdfIn PDF document text
    • https://prosperitas.be/data/assets/file/pijozeguvewo.pdfIn PDF document text
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c46d702842c---98814226150.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/2c0e5d32921c88f962f952d80c1a195f/xubolevepepofekalowepa.pdfIn PDF document text
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/sdoki4ijv0r0b5oi4ev8p6nu4q/fawesaralevefewepodizega.pdfIn PDF document text
    • http://terlickodds.cz/www/www/fckphotos/file/87113609297.pdfIn PDF document text
    • http://renovfab-menuiserie.com/userfiles/file/99297611933.pdfIn PDF document text
    • http://amandatravel.com/userfiles/file/71364667491.pdfIn PDF document text
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/bf99fb79f7b5c413eebbd4983424bf5a/44261335014.pdfIn PDF document text
    • https://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a21002e9f1---temopanelavebadatu.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a43210d2e81---62210622267.pdfIn PDF document text
    • http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e06e056bd9e---31320399718.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=what+does+your+skull+look+likePDF link annotation

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