Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdd68571c273c3ee…

MALICIOUS

PDF

66.4 KB Created: 2021-06-28 08:47:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 7ccb95c2e4e25924cec34ac45c1f835c SHA-1: 7f1c108047dc7d3a24f2d4f38f3b992f24df9c45 SHA-256: cdd68571c273c3ee0d247424951852ca28818473c1f1fada8c54c8414932bdfd
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous links to external websites, many of which are hosted on compromised WordPress installations. The 'link farm' nature of the document, combined with the ClamAV detection of 'Pdf.Phishing.Trojan', strongly suggests it is designed to lure users to malicious sites. The ML classifier also flagged this PDF as malicious, further supporting this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5460

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 https://ketchas.ru/uplcv?utm_term=my+dog+is+dragging+his+bottom PDF link annotation
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc025ac503e---zomakesavisemeraro.pdfIn PDF document text
    • http://marthomaiticherukole.com/userfiles/file/54889548510.pdfIn PDF document text
    • https://coatielectronica.com/files/99203015139.pdfIn PDF document text
    • http://bendhorseride.com/userfiles/file/bujamogowijawizomifix.pdfIn PDF document text
    • https://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/b6e75432259076b2ae32c0d02642bf5f/womexezonux.pdfIn PDF document text
    • http://lt101shop.com/userfiles/files/tumibuleradujibotovitavi.pdfIn PDF document text
    • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/i27i48icermlcknvd67ude2eq4/xawozujatawinad.pdfIn PDF document text
    • https://tangente-mag.com/img/file/20207274582.pdfIn PDF document text
    • http://adamslakeband.org/userfiles/file/39528091328.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/gonagupejaxotozobevafap.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1608438ec79d9b---senikabuwezojapafuzodasal.pdfIn PDF document text
    • http://ya-ke.cn/admin/upload/somikopefizozeguva.pdfIn PDF document text
    • http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c02c9ee3e---33194403259.pdfIn PDF document text
    • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb2332ab45---wotumugugejuf.pdfIn PDF document text
    • https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8b6c8eb74---rukitakizi.pdfIn PDF document text
    • http://alpha-cp.com/userfiles/file/44625519404.pdfIn PDF document text
    • http://szpital-sulecin.pl/images/fckfiles/file/wekofubutopasapapax.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160c475e89a750---xexofone.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075b99ddae59---71792111339.pdfIn PDF document text
    • https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b8374808b---sivililurafex.pdfIn PDF document text
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/3fg3jg00o9uf7tmnrq03eu4km3/37760676185.pdfIn PDF document text
    • https://picinterior.com/ckfinder/userfiles/files/katisimalurij.pdfIn PDF document text
    • http://france-ex.com/images/blog//file/nopagegepaku.pdfIn PDF document text
    • http://northmarking.com/userfiles/files/5192135553.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.