Malicious PDF — malware analysis report

Static analysis result for SHA-256 076374b81486bc94…

MALICIOUS

PDF

63.8 KB Created: 2021-05-09 23:37:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67b6d86728313edace0901617fed7c64 SHA-1: cc3b21f3b5c8929bec542d22627c0fa9f21f169b SHA-256: 076374b81486bc949f2e7ead8aa0cac7bf36175afca97b24fc73f386bae73a5d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a link farm pointing to multiple compromised WordPress sites and disposable hosting, suggesting an attempt to distribute malicious content or harvest credentials. The presence of embedded URLs and the overall structure strongly suggest a phishing or malware delivery campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9867

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://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/u8m6g3sm9jvge44kb7mukkbdir/burizitumizomus.pdf
    • https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/f2f6ac7eb098974bab2f13bbacd0afac/sanisuzuti.pdf
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/16076cbb9061b7---kaneki.pdf
    • http://alphabodysupplements.com/newerac2c/userfiles/file/bewivagose.pdf
    • https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/0hr1bdkutj6hrahf7156c2cd52/3495303775.pdf
    • https://wkd-uk.com/wp-content/plugins/super-forms/uploads/php/files/b53ea65add5940a6eb1c005905d21a48/41130982073.pdf
    • https://advancedbusiness.co/wp-content/plugins/super-forms/uploads/php/files/0f4fef08c3df9041376b97d6b29527e3/xabagepivofebujipo.pdf
    • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607a14e92aedf---85117692269.pdf
    • http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606d53015572d---mimolabowaguxoxawobezareg.pdf
    • http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092ed9515bca---98227814993.pdf
    • https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/8df34a13c33c47cc8d6f653466373226/dusakab.pdf
    • http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/50c5308d4f2b4d43645cf66c1de19fc9/70442845823.pdf
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16078872faa581---11889669413.pdf
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160910e7c0de30---52592152336.pdf
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609673374d749---dikowaxurodalusa.pdf
    • https://yourlightingbrand.com/wp-content/plugins/super-forms/uploads/php/files/e1ac6d6bde34976082c4522c1882cb11/92747080680.pdf
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076259508e2e---775748023.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=whatsapp+messenger++for+nokia+e72
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edb6.bin
5d39870611906092b03486ce0abe4dde9ef7d294bc3df722d1b3b1a9958cb395		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB6 5572 bytes

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