Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a80d31dc1cb864b…

MALICIOUS

PDF

62.3 KB Created: 2021-09-03 00:03:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 2cb6061a8f4f4155b7917f1d9d24b36b SHA-1: 2a12bdf77301d2c3ad823d105b60f21d2165cfaf SHA-256: 6a80d31dc1cb864bced7e5e8ac0bf8ed7c1993edee52b7cc03d873cd88b512db
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains numerous links, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or malware distribution via these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6040

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 http://ash-graphy.com/userfiles/file/xadopupufofojixoriwobofi.pdf In PDF document text
    • http://esebtekstil.com/resimler/files/58960957767.pdfIn PDF document text
    • https://fzclicks.com/demo/files/editor/file/84132729203.pdfIn PDF document text
    • http://vucert.vn/uploads/files/lijadonetad.pdfIn PDF document text
    • http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/n08jpakao8nuadujcokl50jn3r/rosizifa.pdfIn PDF document text
    • https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/ffplt7k9j79lpol9rtnhjiklv5/pewapusifukajivu.pdfIn PDF document text
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16110d2dfd22dd---1407609814.pdfIn PDF document text
    • https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/af9366defae3abf7cc9a95d8d42e2c79/86546380582.pdfIn PDF document text
    • https://shop-ecobati.com/medias/upload/files/namowezitaxe.pdfIn PDF document text
    • http://guojingmall.com/userfiles/file///75109091425.pdfIn PDF document text
    • http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/0b84a429bdc2ba96f5192620eaad4049/49963766946.pdfIn PDF document text
    • https://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/46885cd9283625913ce3be62c54969ae/tudesosefukefugukuma.pdfIn PDF document text
    • http://businessdevelopmentcenter.pl/uploads/userfiles/files/gugagolapebusadetamexe.pdfIn PDF document text
    • https://greshamgilessalon.com/wp-content/plugins/super-forms/uploads/php/files/65a25dcc7e0a8482db0a3e0e86735cff/53339265843.pdfIn PDF document text
    • http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/pj6japr8lq8vi7m8vpni8hacv0/sovonuriwuzudexajiwira.pdfIn PDF document text
    • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/de4q7eo8hr81vq2r3e0dgkilji/2205618274.pdfIn PDF document text
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606d93d8ec68d---78797392273.pdfIn PDF document text
    • https://kermanrooz.com/img/files/45091658826.pdfIn PDF document text
    • http://etabetasurvey.com/userfiles/files/fadewomuxawej.pdfIn PDF document text
    • https://humicdp.com/uploads/2021-07-13/images/files/96350778787.pdfIn PDF document text
    • https://yucekalipmakina.com/tsrm1/img/userfiles/file/kubob.pdfIn PDF document text
    • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160864f85ae455---vevilu.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fdd1ad2918---kokapusedopewulaw.pdfIn PDF document text
    • https://luatsubienhoa.com/upload/ck/files/keduwebamavatibo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=flight+instruments+and+automatic+flight+control+systems+pdfPDF link annotation

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