Malicious PDF — malware analysis report

Static analysis result for SHA-256 c340fa92208075ff…

MALICIOUS

PDF

134.7 KB Created: 2021-06-13 15:57:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 1d3805d16510b5a52ba817cc5e9b4588 SHA-1: 4900dfc8b952af4f6ac49a30f1f4590fb8383b03 SHA-256: c340fa92208075ffdb7d70080e996573b530ae545cee369867f58a5434a33ce5
154 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9857

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://queure.ru/uplcv?utm_term=kpop+story+idol+manager+promo+code PDF link annotation
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/ufajo4q8e1a8j1v7v29h9j3c4a/vadirobekowofipunopifev.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/wejajumug.pdfIn PDF document text
    • https://mszukam.pl/dat//file/65156939481.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/68orb3bc40r9g7nh5lcdjga2tn/91309496069.pdfIn PDF document text
    • http://flygarfield.net/userfiles/file/77094567865.pdfIn PDF document text
    • https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/247efd3ec242516c19bb7d4e6844c694/puleni.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24a63af93a---zenumirolewim.pdfIn PDF document text
    • http://fsoa.cn/userfiles/file/90113441967.pdfIn PDF document text
    • https://bititechnika.com/uploads/file/18234558217.pdfIn PDF document text
    • https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16085c4c2253b5---tikuvetapi.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/16s8jcuk8srr31ojvb9m35jrdq/retalumesomitakunatudeze.pdfIn PDF document text
    • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/8f514f3499469bc4823b6ece9aa8fdfa/mipemirojuwupomufigebabol.pdfIn PDF document text
    • http://automsystem.com/UploadFile/file/20210603150135061.pdfIn PDF document text
    • https://livingcircles.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609c978ba0631---degexozepalezuvodezaf.pdfIn PDF document text

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