Malicious PDF — malware analysis report

Static analysis result for SHA-256 24ed26788b53da57…

MALICIOUS

PDF

48.0 KB Created: 2021-07-13 08:48:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-02
MD5: cf70689261d603ec031fc78ba1154fd3 SHA-1: b8b701023a9a5304a3e5422d1903e8d2dc6ff69d SHA-256: 24ed26788b53da57c94e3a87b6fd6e61b63ad528c82cc4c8a0b960f474001a03
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan threat. It functions as a link farm, containing numerous embedded URLs pointing to compromised WordPress upload directories and other domains. These links likely lead to further malicious content or phishing pages, suggesting a multi-stage attack. No scripts were extracted, but the PDF structure itself facilitates the distribution of malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6237

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://laborke.ru/uplcv?utm_term=subject+verb+concord+for+class+9 PDF link annotation
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6a6e484a9---4627639202.pdfIn PDF document text
    • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/i2khm5prnakh8q6t9u7a1r5s0r/1189635602.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/38f9ceaba194ddf94aa5c39cc43b6302/36126900348.pdfIn PDF document text
    • http://x04ydivan.ru/userfiles/file/fokitotixividu.pdfIn PDF document text
    • http://batiment-tunisie.com/userfiles/file/nijolenaxapofuxigazotix.pdfIn PDF document text
    • http://xn--365-pn7mwb654m2qn.com/ckupload/files/85168298319.pdfIn PDF document text
    • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1609afb61c93bc---lobinububemotemunowuwinu.pdfIn PDF document text
    • http://murito.fr/ckfinder/userfiles/files/31908496206.pdfIn PDF document text
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/97c6db8ca15861abcd8c670a774895a2/luvemas.pdfIn PDF document text
    • https://aspaeng.com/files/image/files/luremadokavutatitadag.pdfIn PDF document text
    • http://ruegen-ferienhaus-schneider.de/userfiles/file/38100912359.pdfIn PDF document text
    • https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160771d20cba9a---ratetanom.pdfIn PDF document text
    • http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160784e1e56795---zuvab.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160bbb92f639ca---ginanepafamunufu.pdfIn PDF document text
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099c35a6c6ef---zegudaxu.pdfIn PDF document text
    • http://www.deopendeur.org/imgUser/file/tijibatutizoju.pdfIn PDF document text
    • http://pizzeriadevita.it/userfiles/files/kuludaludefomowuk.pdfIn PDF document text
    • https://digireg.dk/upload/lebaribonivel.pdfIn PDF document text
    • https://kipass.fr/userfiles/file/86841810870.pdfIn PDF document text
    • http://prestopc.it/upload/file/56752602681.pdfIn PDF document text
    • http://lhsclassof1971.com/clients/74120/File/punuzusiwasetizupujamij.pdfIn PDF document text
    • http://acmemask.com/upfiles/editor/files/tozivoxonumeredavetab.pdfIn PDF document text
    • https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/035e0b24c8fce6afd55a15661f6de816/55995559904.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607f2cc2ced78---57616342535.pdfIn PDF document text
    • https://davidfauquemberg.com/home/fauquemb/david/bbdg_site/userfiles/file/55083203117.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/dff557b00a5b23938ca3bb740374eece/zakibuw.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.