Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a195ed65ce8fc13…

MALICIOUS

PDF

72.0 KB Created: 2021-07-29 20:30:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-03
MD5: 3f49f3b73cf0446af28e06b07863fc09 SHA-1: f47dc796a80feee85a46290cfe052bcd0f98fc63 SHA-256: 5a195ed65ce8fc131bf4d84d1995622b9e19a5735699182eb41c6124ad827334
162 Risk Score

Malware Insights

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

This PDF file contains embedded JavaScript and numerous external links, many pointing to compromised WordPress sites and disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further payloads. The presence of embedded JavaScript suggests an attempt to exploit PDF vulnerabilities or redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7255

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://budgetparking.ca/admin/uploads/file/gasuduwipumekakumaxanagek.pdf In PDF document text
    • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609d4784d9b66---kasuxaxanexalewenebigeze.pdfIn PDF document text
    • http://www.derbysignandgraphics.com/uploads/file/kajixifipuzotesagosisudu.pdfIn PDF document text
    • http://manilag.com/FileData/ckfinder/files/20210702_5AF03D90E1944B5C.pdfIn PDF document text
    • http://aep-tc.com/cache/fck_files/file/72704844814.pdfIn PDF document text
    • https://kvkumariajnkvv.org/singhania/downloads/file/19881702262.pdfIn PDF document text
    • http://bensonlandscape.com/editorData/file/bexire.pdfIn PDF document text
    • http://balassalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zadasovuledulibulorawu.pdfIn PDF document text
    • http://euredit-editions.com/userfiles/file/22246632357.pdfIn PDF document text
    • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a92fa5523ba---72578904722.pdfIn PDF document text
    • http://www.aaar.cat/assets/js/ckfinder/userfiles/files/21531689105.pdfIn PDF document text
    • http://www.greenfield-sustainability.com/images/files/getobe.pdfIn PDF document text
    • https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a1dc0ed67---dasowirizelerot.pdfIn PDF document text
    • https://gulf-rope.com/images/bulk_images/files/pivazuxaxuwafuximufesa.pdfIn PDF document text
    • https://sibservis.com/ckfinder/userfiles/files/zibojuxezewewigavuwe.pdfIn PDF document text
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081a9bc11dc6---75789296949.pdfIn PDF document text
    • http://cec-intl.ru/app/webroot/files/file/pagitomibuguzukuranumu.pdfIn PDF document text
    • http://abacusnancy.com/userfiles/file/lebodokazog.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16089215034507---18666314894.pdfIn PDF document text
    • http://pgnsualumni.com/clients/872691/File/gasegogipusivinum.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/c3433428297cbad197cda343256921df/jejusubikafixamuj.pdfIn PDF document text
    • http://jp-cable.com/d/files/14381811855.pdfIn PDF document text
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd06070aed8---35917484579.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16071a225ad0db---xotetufunakomigosa.pdfIn PDF document text
    • https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/b0c782db594116fa239e36ee1c388b7b/farunekusibi.pdfIn PDF document text
    • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/66qkfqf6grvc7c1ue3ibadf7er/88992392483.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160de08775f9a7---sukiwuwanor.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=university+of+toronto+financial+aid+reportPDF link annotation