Malicious PDF — malware analysis report

Static analysis result for SHA-256 78e3860e1077d66a…

MALICIOUS

PDF

54.0 KB Created: 2021-06-09 21:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: abb535a0611547457197e169f9bc71e8 SHA-1: 84bef2dae8c9d2b5f18c0b40ac1a350744e16a8d SHA-256: 78e3860e1077d66ae8825218ae46817f4e9c2e06ae9d2f783eda6d3a00961f8e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link farm pointing to multiple compromised WordPress sites and disposable hosting, with one URL specifically mentioning 'my talking angela mod money' to lure users. The presence of numerous external URIs and the ML classifier's high confidence score indicate a phishing or malware distribution attempt. No scripts were extracted from this sample, but the structure and URLs strongly suggest a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6072

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=my+talking+angela+mod+money PDF link annotation
    • https://sipsib.ru/wp-content/plugins/super-forms/uploads/php/files/d959f9512aeb3840e88ac5c9f4110e10/11157349824.pdfIn PDF document text
    • http://am-assets.com/aom/magnolia/userfiles/file/68365770590.pdfIn PDF document text
    • http://dgjst.com/upfile/file/88506450159.pdfIn PDF document text
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/a69efjq9adh8040oivq30vtn1i/3409862498.pdfIn PDF document text
    • http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086265caf237---kajore.pdfIn PDF document text
    • https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607d195abd2ed---41764601464.pdfIn PDF document text
    • https://www.letspassdriving.co.uk/wp-content/plugins/super-forms/uploads/php/files/hfrkm11ucivt93gr66fk3i5gpo/88854571521.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f37c0792e6---vigudekejoguxebu.pdfIn PDF document text
    • http://caphegiabao.com/upload/fck/file/vewosojawajinukujumamixim.pdfIn PDF document text
    • https://garyjetcenter.com/wp-content/plugins/super-forms/uploads/php/files/347ed12a8b09ba8f3f08735a210c8060/28764102025.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098434aeee52---tiramoki.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6712a14d3---pisedaxifelon.pdfIn PDF document text
    • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b8f6572c604---butesekonekedipajeted.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/bicrar2oah65u674j6ha29gtkn/29966724301.pdfIn PDF document text

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