Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb399b48f0825a85…

MALICIOUS

PDF

72.2 KB Created: 2021-06-21 13:17:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be4e674f5a98fdddea6af232b59e0eff SHA-1: 0508f3622b27597aac51d06b5d8209448cc84f70 SHA-256: bb399b48f0825a853bdc6ec30ea29553b62360576b39ca7e6f10cb536e69c86e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to compromised WordPress upload directories, suggesting it is part of a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. The document body's reference to 'minecraft mobile home apk' is a lure to entice users to download the malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9668

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 http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8fe34ef75c---9070105793.pdf
    • https://fcr-fomentoconsumoerenda.com/uploads/files/vifizafonixazojuvukeva.pdf
    • http://alituncer.com/userfiles/file/99923971806.pdf
    • http://ukicda.com/admin/fckeditor_upfiles/file/2021061117575780554.pdf
    • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/4189a889f86e274d7d2b6ec93928b6bf/47472277151.pdf
    • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/258774ede57959e3a6f769372ae60cc4/pakopijel.pdf
    • https://www.freshstartdigitalmarketing.com/wp-content/plugins/super-forms/uploads/php/files/8686cb73463384d5378482fbb563f4b2/tolevujumuj.pdf
    • http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16084e201ce6b5---37021536782.pdf
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16088bf13cb4ca---gotoresagokixoximolojono.pdf
    • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/eigun81skjqm9e8pvsclvhvmo7/72680227253.pdf
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb4cdd3e5f---mumijutotonokowo.pdf
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/mi03tajfoh7g64jip3ucn1t5kl/gifumupofamap.pdf
    • http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b426abbf74---pemijujurotapuzubikima.pdf
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bbc23216ee---vixixitire.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=minecraft+mobile+home+apk