Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a23ebce279a617e…

MALICIOUS

PDF

58.3 KB Created: 2021-05-19 07:43:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d29e023333e5979ef41f12941deabfe6 SHA-1: 3e041ca28c50b068729334ce5471fdb0543f69b6 SHA-256: 8a23ebce279a617e7280a0ccb570861c814b4e3d5930aa5ade462fa0024de0a9
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6956

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://agrilaui.com/userfiles/file/64690364153.pdf
    • http://axiomestates.com/userfiles/file/36060280370.pdf
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2570b2659---46744839243.pdf
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16073d3c0dcbd4---zufujunizegi.pdf
    • https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7a7b14564---28465348992.pdf
    • http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608dacefe799c---68717403737.pdf
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8db30839e---xunokisupemil.pdf
    • http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/16080741acbd75---36981250396.pdf
    • https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/4a2f0e2a9a5ef9db999fb096ee84f22b/potoruvoxivovod.pdf
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4f2ab0a04---82667571070.pdf
    • http://mouaumfb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7f7691cb8---12104539539.pdf
    • https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb6769af83---jixefuxerizor.pdf
    • https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/mtpejiasjmufh82rihtj78lr95/wobedesuzerurevon.pdf
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/7662c17c58c224f743df7ed04ca2e349/23519931647.pdf
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/dba24987fa42a5deca4f62373c0ba784/23260052772.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+become+a+medical+interpreter+in+canada