Malicious PDF — malware analysis report

Static analysis result for SHA-256 bce55f3d57c2df8e…

MALICIOUS

PDF

141.6 KB Created: 2021-07-20 18:47:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: ca90ae5287c479cc8dbf64c9186e0040 SHA-1: 43863d05f4ebe09df73639b4673aa4ccf811cb0c SHA-256: bce55f3d57c2df8e1b7af9f390d00d31cf24588a196ad9a33eabdbac12831720
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected as a malicious PDF by ClamAV, indicating it is likely a phishing or malware delivery attempt. It contains numerous links to external websites, some hosted on compromised CMS platforms, suggesting a link farm designed to redirect users. No scripts were extracted, but the PDF structure and embedded URIs point towards a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4723

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 http://xoblates.com/clients/e/e0/e08cfb93fb97b00c28394d0532709dc9/File/51124857323.pdf In PDF document text
    • https://marathonlaval.com/userfiles/files/6215941686.pdfIn PDF document text
    • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5bab342d5---lawim.pdfIn PDF document text
    • https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/c784e6175b2e23f46afa0bb45880f947/99614203177.pdfIn PDF document text
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a56dadc1344---voxuropelulowi.pdfIn PDF document text
    • http://qbcar.ru/ckfinder/userfiles/files/lajilolukurevoboxur.pdfIn PDF document text
    • https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2ef88273c1---32293449689.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/eoa8hlfbvi5nrndjj2466fdkib/dasuvuxulusekujabat.pdfIn PDF document text
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/n0j9kd43dbenualil164c7rjp7/12236573571.pdfIn PDF document text
    • http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab14f1e6112---voxiraz.pdfIn PDF document text
    • http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606caa591cef6---fitezevadubenebekatasirak.pdfIn PDF document text
    • https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/d20c07d94e6d058e797d258c84218118/97062013641.pdfIn PDF document text
    • https://guapa2.com/admin/fck/file/90996325361.pdfIn PDF document text
    • http://hkbroadwin.com/userfiles/27939636477.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071abda868fe---51506472397.pdfIn PDF document text
    • https://newtech-utm.pl/userfiles/file/48706253515.pdfIn PDF document text
    • https://momsgardenfoods.com/ckfinder/userfiles/files/lexow.pdfIn PDF document text
    • http://beachfirebrands.com/userfiles/file/kazutase.pdfIn PDF document text
    • http://thaoduocquyhiem.com/userfiles/image/file/88138309949.pdfIn PDF document text
    • https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/327623ca7b936acd3f2954d5bd4924b0/94494902790.pdfIn PDF document text
    • http://rallyteamwalraven.nl/file/sobipedijokonemeteg.pdfIn PDF document text
    • http://ural-resyrs.ru/data/file/fisobimevip.pdfIn PDF document text
    • https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/8d8aa9a4c1afd6575e42b81ae0369eb1/dimaviwotunowofoz.pdfIn PDF document text
    • http://penzionklara.cz/userfiles/file/59440715611.pdfIn PDF document text
    • https://dmddsgn.com/wp-content/plugins/super-forms/uploads/php/files/c03fbfb41f319c5ff0eb88163f70e02f/82057343492.pdfIn PDF document text
    • http://icsbc.ru/fuploader//file/10519066637.pdfIn PDF document text
    • http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b18978a060a---34299735262.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=professional+ethics+question+and+answerPDF link annotation

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