Malicious PDF — malware analysis report

Static analysis result for SHA-256 a28f0ae2e3f368cd…

MALICIOUS

PDF

47.6 KB Created: 2021-06-09 17:06:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: efc06626981525614903f7c88554b637 SHA-1: 4e03e9f364f059ff005c38a31967f94add10aa6c SHA-256: a28f0ae2e3f368cd007dc926e21e15ea01c9125be0a99ea6546342052708e019
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a link farm pointing to multiple compromised WordPress sites and other disposable hosting, designed to trick users into downloading a "hacked version" of a game. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7205

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=sniper+3d+hacked+version+free+download+2020 PDF link annotation
    • http://esistore.be/userfiles/file/83344252453.pdfIn PDF document text
    • https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606c73dd7c662---62505435567.pdfIn PDF document text
    • http://industrialdevices.in/uploads/73224512824.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/9e3c2c3989d11fbad4dcdc2c4c9e2f26/girajajekoreme.pdfIn PDF document text
    • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/sb7n1efg5plfc85uo7lalv1keo/22727035300.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/59c074f38fad3b38c91a17a3e47f6b2a/18726542493.pdfIn PDF document text
    • https://thai-airpark.com/ckfinder/userfiles/files/27401683945.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1607a912f7ac4b---kurom.pdfIn PDF document text
    • http://entone.es/wp-content/plugins/super-forms/uploads/php/files/ae54f9314d95ef50cdce693a13d7bb57/xamusagufarodofodiwoloren.pdfIn PDF document text
    • https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/84v81h5jj2e3mgvp588a7gjl1c/xupuv.pdfIn PDF document text
    • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16072f2ecf00e9---saxigegapalija.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0b7548923---xumot.pdfIn PDF document text
    • http://www.annaleehuber.com/content_files/file/xomapafedawabo.pdfIn PDF document text
    • http://alkanboya.com/files/file/%5C/kotatik.pdfIn PDF document text
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086fc2c4b434---wafokusukota.pdfIn PDF document text
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/4v7lb4vkseg42ourtdeo3fhlk5/vebopakekojetemixebewa.pdfIn PDF document text
    • https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/b592939f67221b6a333d50e9449a724e/nonadelozovamewojinabir.pdfIn PDF document text

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