Malicious PDF — malware analysis report

Static analysis result for SHA-256 26fd79148d1d0c60…

MALICIOUS

PDF

65.1 KB Created: 2021-07-16 02:23:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: a96ad9f14eb0343479e95a5db5ff639a SHA-1: ee672a2bcfd36c04bdd4bf6e7e271527a1de2d87 SHA-256: 26fd79148d1d0c60e8f4dece2b84f079576190fc6f53aa04b3acc0a37a4c86c4
124 Risk Score

Malware Insights

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

The sample was detected by ClamAV as Pdf.Phishing.Trojan. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The PDF structure and link farm heuristic indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3846

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://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/0lob082spkki9g7dqtt8prtbia/27239334028.pdf In PDF document text
    • http://soflocops.com/clients/67403/File/dulimajiwalula.pdfIn PDF document text
    • https://evrenmentese.com/upload/ckfinder/files/xomunuzi.pdfIn PDF document text
    • https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/d1b7u2k956lk7jp642ib8dg8eb/xarimafexabatemijanixubaf.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/cc4cc661e5ed7163fed4949fe5b9fcc5/guzimusekivomubitopavaxi.pdfIn PDF document text
    • http://ingmontagna.com/userfiles/files/jezeboreg.pdfIn PDF document text
    • http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/a306161eac89a2ed2e7b9b5f92806580/45032541226.pdfIn PDF document text
    • http://superplasticizer.cn/d/files/zoxed.pdfIn PDF document text
    • http://centronegozi.com/public/rufobuxek.pdfIn PDF document text
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16082b8f8bcbf0---jejilaganaretunagevak.pdfIn PDF document text
    • https://fier-forjat-valimet.ro/ckfinder/userfiles/files/goboxib.pdfIn PDF document text
    • http://humanlitech.com/files/files/23025358162.pdfIn PDF document text
    • http://kimbuunguyen.com/uploads/userfiles/file/60570094605.pdfIn PDF document text
    • http://ongnuocdenhat.com/upload/files/30632649360.pdfIn PDF document text
    • http://xn--h1acbpobggs.xn--p1ai/data/files/gorakiroxiwidanetu.pdfIn PDF document text
    • http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607eeef6d9335---691486585.pdfIn PDF document text
    • http://gangwontaxi.com/FileData/ckfinder/files/20210707_00905D9AB9757E93.pdfIn PDF document text
    • http://sbstroy53.ru/img/files/21244922384.pdfIn PDF document text
    • http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a34b366b27c---ruzoporutigila.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160747ad63d62c---33374045164.pdfIn PDF document text
    • https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/3d65a06fa565819e5140f9672004b257/wukizifafozunineni.pdfIn PDF document text
    • http://sam-global.info/files/file/zageropavazivewudewesoxe.pdfIn PDF document text
    • https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/20e14a5f67d048b61af95991c0f5597f/35497152288.pdfIn PDF document text
    • https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1ab9d7b78---81807977769.pdfIn PDF document text
    • http://ehomeforeclosure.org/images/file/vapuzuzogapodajogel.pdfIn PDF document text
    • https://aquafilling.com/userfiles/file/gusafiwejetuw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=how+long+can+i+keep+rice+in+the+fridgePDF link annotation

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