Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2f89ba37ff1276b…

MALICIOUS

PDF

94.3 KB Created: 2021-07-06 00:38:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 94dd759514716dc1f84ac3b13add065c SHA-1: c03772119b6ee266dd3ea197fa95bcebea47feb6 SHA-256: a2f89ba37ff1276b32d0f3272ac7a232037bb0fd9a2bafb3dfcd4c59bf31b6c5
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, indicating it likely exploits PDF vulnerabilities for execution. It functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous links and the nature of the hosting suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5112

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=non+immune+hydrops+causes PDF link annotation
    • http://obrienbuilders.com/userfiles/file/68293327818.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160a953f2ecbee---gukuvodepobizerizukibe.pdfIn PDF document text
    • http://amctop.com/board_data/editor_img/file/202106261711.pdfIn PDF document text
    • http://www.canadavisaservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5646beed0f---27687179180.pdfIn PDF document text
    • http://budoprojekt.eu/obrazy/file/56432105457.pdfIn PDF document text
    • http://studiolauramoschini.it/userfiles/files/37852778934.pdfIn PDF document text
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/c62819aa069c3858c685dae7e47e5ec7/85486621.pdfIn PDF document text
    • http://schokobrunnen.com/idata/kulopegudipig.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/2c03e48c7bfa5f7332056a29a410546c/30857988790.pdfIn PDF document text
    • http://hydrem.ru/images/file/rolugazewoduzoge.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/86024c72a636325603a0e42f838ce04a/zaxexizemigimu.pdfIn PDF document text
    • https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/a3661d0d663d3b988ddff4d21d50e9b8/9895755846.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607ce6bfd0dac---51650348563.pdfIn PDF document text
    • https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/cb95d4e32afbb716679469ca4d406133/35595435789.pdfIn PDF document text
    • https://fenixfalt.com/userfiles/file/xelasavitinejagexo.pdfIn PDF document text
    • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/39ac291f7a69d354a2d524fc6d699fde/gemesu.pdfIn PDF document text
    • http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/320r4v1m8944i1eutq8h4742h7/6097492957.pdfIn PDF document text
    • https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1609ca85d4f5d3---74937504136.pdfIn PDF document text
    • https://www.nexidia.it/wp-content/plugins/super-forms/uploads/php/files/d09a4fa894b5014173594550be11b10c/58210924183.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b2d87c2bd9d---11770101491.pdfIn PDF document text
    • http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608a34d250172---6208511661.pdfIn PDF document text
    • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/hgns4f8fdebfjb93h70u1orgmb/laruzoj.pdfIn PDF document text
    • http://starlightcelebre.com/clients/4/43/43e9139217482d7666ce300faf566241/File/16414478965.pdfIn PDF document text
    • https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/b5d2f28217fd984b424e8d4140c7a4bf/50705001902.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/37trd3ot9dlq0enmhs4tl8p040/92181217454.pdfIn PDF document text
    • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/72248b115f6d2dd373aa54a70d7fe2fd/mopegukupadujuxetojuj.pdfIn PDF document text