Malicious PDF — malware analysis report

Static analysis result for SHA-256 360a7cfed2c45ed6…

MALICIOUS

PDF

58.1 KB Created: 2021-08-15 02:50:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: d624ccb7c7a065df4d09951787f56639 SHA-1: 6385e6c30d173d2223ad5acb5b0b411bcb7a900d SHA-256: 360a7cfed2c45ed60d64963e13a1bdf84e5dac45a436a474300f3db689b9fcfd
154 Risk Score

Malware Insights

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

The PDF contains numerous external links, many of which point to compromised WordPress sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to lure users to malicious sites or download further payloads. The presence of link farm heuristics and compromised CMS upload links reinforces this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9404

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://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a87766c6dde---jimuretabemakogila.pdf In PDF document text
    • http://archi1919.com/smlclub-files/file/88899530277.pdfIn PDF document text
    • http://analogsys.com/uploaded/file/122301308360d71eb4a123b.pdfIn PDF document text
    • http://autovoda.ru/upload/files/bugurujosir.pdfIn PDF document text
    • https://aashianarealty.com/file/vamarugorefojidavadi.pdfIn PDF document text
    • http://pvhs1980reunion.com/clients/e/e5/e5e9f74eb83211af097e98bf68d59c4c/File/45916729827.pdfIn PDF document text
    • https://leanuslab.com/UserFiles/file/34690622570.pdfIn PDF document text
    • http://shield-in.com/userfiles/files/suleguse.pdfIn PDF document text
    • http://bethanybaptistcolumbus.org/clients/75549/File/jowat.pdfIn PDF document text
    • http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fc81cb93d4---gupafeje.pdfIn PDF document text
    • https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/d05a024661d3927064732cf2151c11de/36122271696.pdfIn PDF document text
    • http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1b86bdc7fc---vufixivoxizurol.pdfIn PDF document text
    • http://deltastal.ru/userfiles/file/mipofuronerevo.pdfIn PDF document text
    • http://glassco.ca/clients/9/99/99aa1728c1dafa3cf8773a75727b87c9/File/wakedefakuwupufinegozut.pdfIn PDF document text
    • https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/p3jtfpdhh06prd19po8se0vh61/58437715007.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/0cb4sl3toaek3nhnbq3pg0ngmi/54871819345.pdfIn PDF document text
    • https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/8mmjac3c8l7vfmm3q92g854jsv/43781905799.pdfIn PDF document text
    • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a5b4b985b97---61457789143.pdfIn PDF document text
    • https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/vnc1t7q78mk3uhqq22ude3o3kf/xomurunoxesisozemadebomo.pdfIn PDF document text
    • http://feach.ie/images/uploads/file/56815212203.pdfIn PDF document text
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7e96d20fa1---bubipini.pdfIn PDF document text
    • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/e67273cba235f86792587bbcfe3b6242/39005780329.pdfIn PDF document text
    • http://duszek-lasu.pl/userfiles/file/dixulolitam.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=exercice+sur+synonyme+et+antonyme+cm2PDF link annotation

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