Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c60d0cfe9106216…

MALICIOUS

PDF

84.6 KB Created: 2021-06-12 07:00:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 5918e806783ab8e0ee931f1c252452bd SHA-1: 8affa2d9334e1176a33bdc90648b281274dab3d2 SHA-256: 9c60d0cfe910621664363966dd78cff2504dea9bc88f448ea0780e1df0117c43
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, directing users to various compromised websites and potentially malicious PDF downloads, disguised as educational materials. The presence of numerous external URIs and link farms suggests an attempt to distribute malware or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9487

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://garglob.ru/uplcv?utm_term=oxford+english+grammar+for+class+4+pdf PDF link annotation
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/6766f59792a453937beaea493d5efc5c/32823016299.pdfIn PDF document text
    • http://esistore.be/userfiles/file/76995588597.pdfIn PDF document text
    • http://incucinaconalberta.com/userfiles/files/nawejaxetojopases.pdfIn PDF document text
    • http://gorisum.net/fckeditor/upload_file/file/55428582545.pdfIn PDF document text
    • https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/fa14e9c4fb93b573e2ea70c705cd9c62/jemovajifetirotuledejow.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a720498703f---bodarifuluwazifube.pdfIn PDF document text
    • http://whewfamily.com/clients/12004/File/14812501115.pdfIn PDF document text
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be43063ec20---funowixorokojem.pdfIn PDF document text
    • http://jhdjt.com/images/upload/File/sezadexonizilada.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bac9e891682---38753077266.pdfIn PDF document text
    • https://medtek.vn/storage/file/bepekezowevep.pdfIn PDF document text
    • http://beijingxinzhi.com/userfiles/file/20210518072650_2052180586.pdfIn PDF document text
    • https://luxurytravel-show.com/wp-content/plugins/super-forms/uploads/php/files/908c117ab938b4781eed2e3429710f36/fefajebu.pdfIn PDF document text
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/ivq9tgh72j40s9t4v7ep79frfh/wanonadufafewipo.pdfIn PDF document text
    • https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/ee39d0ff74d610bef2fd4a616c50a996/suwaduxilitavogepurero.pdfIn PDF document text
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160817e113db8f---66604361798.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb1bfc8ac8---76305196150.pdfIn PDF document text
    • http://a-kamen.com/userfiles/file/3487514740.pdfIn PDF document text

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