Malicious PDF — malware analysis report

Static analysis result for SHA-256 22ff7f1d266b46a9…

MALICIOUS

PDF

109.2 KB Created: 2021-09-08 08:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 9460833d198e901355f1870ca068d5ec SHA-1: 7bae7781a63002aab121ec39eafd98fe1f39baf7 SHA-256: 22ff7f1d266b46a9bebae44b0a96d0b8118311a4f82040f646263d2d0c797fae
124 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV with the signature Pdf.Phishing.Trojan. It contains a link farm with numerous URLs pointing to potentially compromised websites or disposable hosting. The primary purpose appears to be directing users to external sites, likely for phishing or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4097

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 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://www.prodomasa.com/ckfinder/userfiles/files/nonumev.pdf In PDF document text
    • http://koopmankennedyfeller.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/99868309981.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f0f12d3ce---dozotumadijivi.pdfIn PDF document text
    • https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/562585a46048cbbf85ccb5f5da685e78/43511673948.pdfIn PDF document text
    • http://entiambalaj.com/upload/file/nologeviforerebexufubida.pdfIn PDF document text
    • http://topimmigrationlawyer.org/ckfinder/userfiles/files/61572552106.pdfIn PDF document text
    • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/201e9987e187a68c5ff2a824067b2b35/58323801802.pdfIn PDF document text
    • https://dancleland.com/img/upload/file/patogolinelawelusasasuw.pdfIn PDF document text
    • https://pacie.vn/web/uploads/files/41065463941.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160909d89ba292---mevoxezalirefizifajewo.pdfIn PDF document text
    • http://permagnet.com/upload_files/file/210812035926540772yaorni.pdfIn PDF document text
    • http://webcertain.ca/contentupload/fckeditorUploads/organization_/file/38970454907.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/650664897a55d6c47c0f0d22e7ee260b/mewifemofiponuvexudugolev.pdfIn PDF document text
    • https://natyabio.com/uploadfiles/vifomomakenus.pdfIn PDF document text
    • http://china-zub.ru/userfiles/file/ruxadimotepiju.pdfIn PDF document text
    • https://nullemont.fr/nullemont/ckfinder/userfiles/files/97276506551.pdfIn PDF document text
    • https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/b3d07be58e4a279d9266e11bfda329be/kosizes.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609a256f680a2---senogevutiji.pdfIn PDF document text
    • https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d83399162e6---71000338443.pdfIn PDF document text
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a016994c46f---58410079093.pdfIn PDF document text
    • https://unserbiokorb.ch/userfiles/file/gonalobuwoto.pdfIn PDF document text
    • http://master-sign.ru/ckfinder/userfiles/files/gagunowifikugisadegavofif.pdfIn PDF document text
    • https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/3glo5e9ka727ntt3ungi5rc48t/zolepu.pdfIn PDF document text
    • http://burattinojatek.hu/userfiles/file/sorotiz.pdfIn PDF document text
    • http://coming-c.com/userfiles/file/linewul.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=articles+about+education+in+the+philippines+pdfPDF link annotation

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