Malicious PDF — malware analysis report

Static analysis result for SHA-256 19fc27b13f2d31b3…

MALICIOUS

PDF

57.2 KB Created: 2021-04-30 18:23:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c563bd46972b3485988a98af28f995aa SHA-1: f32e3ebb548455e5e810c7d6449b1a5e68f03516 SHA-256: 19fc27b13f2d31b38b124629f0dd49f16e2a19a98ec42bc6c2920ed158c668e6
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier. It functions as a link farm, with numerous embedded URLs pointing to potentially compromised WordPress sites. These links likely serve as a lure to redirect users to phishing pages or download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7497

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://olgapopovaphoto.com/wp-content/plugins/super-forms/uploads/php/files/83c6b527dba9bc289418512c53080a45/pabaxinipuvitizoriwerole.pdf
    • http://alnadaoil.com/userfiles/file/jexubetowedenipug.pdf
    • https://elbag.net/wp-content/plugins/super-forms/uploads/php/files/a7d52e15c01c09935ce9a77e6faba908/rivikoxolonakupelax.pdf
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2de43ef63---kenekufafi.pdf
    • https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/2b7beb4c7b176970bec5d3d2b1578a3b/30563965852.pdf
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c896e87ffa---70057055435.pdf
    • http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9eb436cb0---28191901570.pdf
    • https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/16lh6g8m0dh2httvusmktjigb2/nulojodosafexibizot.pdf
    • https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/3801f8e6d0af5086ec2861cec692c327/62205367285.pdf
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/scvjpav6jlsue5l5gr2pvosebq/56203534768.pdf
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/1fcd3e64e4e15d073cf4d7256d4a25c6/modibodezujunemogaximur.pdf
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/64f9c9f6b476daba29f0ca34cbe84e32/tiraniwapefeze.pdf
    • https://www.golaw.net/wp-content/plugins/formcraft/file-upload/server/content/files/16083258eaa4a6---wusiwadika.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081759fd3ef9---gafobotabozakov.pdf
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c90881f61c---befarupikuneguwomipadani.pdf
    • https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/763df7910cf78e3d7c9715a8a92eeef7/zobikamevetiru.pdf
    • https://mkting.com.co/wp-content/plugins/super-forms/uploads/php/files/05b69d8d522460647a2514bbd8044301/70268421146.pdf
    • https://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608999ff65c4c---xazub.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=dvt+treatment+guidelines+eliquis

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