Malicious PDF — malware analysis report

Static analysis result for SHA-256 9966d2778f702ef7…

MALICIOUS

PDF

110.9 KB Created: 2021-07-31 19:06:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: 26c4d4efe74317e785c887ac2dbfed4e SHA-1: 8699891ebe1a2c5fcb3f46e9aca4889e93549468 SHA-256: 9966d2778f702ef74379641d6345aa61cec92e2225db1470169aaca335547f71
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. These links likely lead to phishing sites or further malware delivery, as suggested by the 'Phishing.Trojan' detection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8145

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://pixomot.ru/uplcv?utm_term=readworks+answers+key+the+allure+of+gold PDF link annotation
    • https://sportcity.bg/webroot/img/content/files/sesomanezibutunezalav.pdfIn PDF document text
    • http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f289acc8db---zonigidifigidero.pdfIn PDF document text
    • http://thermocomfort.ca/userfiles/file/14042715472.pdfIn PDF document text
    • http://asdgolfclubtoscana.com/writable/public/userfiles/file/pekabatoxutexekumot.pdfIn PDF document text
    • http://brandnewgoods.net/userfiles/file/40456929000.pdfIn PDF document text
    • http://drivingschool-brno.eu/files/14514982464.pdfIn PDF document text
    • https://acavacecio.it/userfiles/files/rerixogakurexuberufem.pdfIn PDF document text
    • http://adveotec.com/img/file/laxotewijojov.pdfIn PDF document text
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/qf9uerko9364dj5etnafmdlr89/81408629011.pdfIn PDF document text
    • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c26e045eacc---fimiwi.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091200c9bb3c---51630247433.pdfIn PDF document text
    • http://dongduong.net/Images_upload/files/mumuzibidatatag.pdfIn PDF document text
    • http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088feeac387f---25387760632.pdfIn PDF document text
    • https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160917c7015034---batupomerejusopup.pdfIn PDF document text
    • http://anhuishangbiao.com/upload_fck/file/2021In PDF document text

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