Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7732199e43431a7…

MALICIOUS

PDF

70.3 KB Created: 2021-07-29 21:15:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 0ec3dcb2711e7b7bd36f5e6b3a7dd228 SHA-1: d40c192454d4e22795215a2413f5a1ee753a17e8 SHA-256: f7732199e43431a7bd638b41a889417a7e1639c30bb0543a7acac7d61b079117
154 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with many URLs pointing to compromised WordPress upload directories. These links likely serve as redirects to malicious sites, a common tactic for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/fba0de0e69b5b2803c32f5528b098353/mixuzejemipek.pdf In PDF document text
    • https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/5c109d14c3f9d1123debfe225476e253/14860322896.pdfIn PDF document text
    • https://rivaflo-south.in/userfiles/files/bawararunedox.pdfIn PDF document text
    • http://djpress.pl/Image/files/27589013322.pdfIn PDF document text
    • http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609844a553353---wevazajepapeluxenamotupos.pdfIn PDF document text
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609daef880a22---fivofavuluxi.pdfIn PDF document text
    • http://djpress.pl/Image/files/76090400982.pdfIn PDF document text
    • http://kimbuunguyen.com/uploads/userfiles/file/49252771052.pdfIn PDF document text
    • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160adc1e0df8b6---nuxuwepejifekeganutanil.pdfIn PDF document text
    • https://bluebeakbranding.com/wp-content/plugins/super-forms/uploads/php/files/2e7b27899342085ce2bc34f7b9f726d4/supigokisadudosaral.pdfIn PDF document text
    • https://crownprolaw.cn/userfiles/Proj_Name//files/35898508342.pdfIn PDF document text
    • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16077e211f3e7b---mizadiruzusuwi.pdfIn PDF document text
    • https://wolfgang-photography.com/userfiles/files/49936555236.pdfIn PDF document text
    • http://valsadindustries.com/userfiles/file/xowenukanejajolirelakuwen.pdfIn PDF document text
    • http://www.facyt.com.ar/ckfinder/userfiles/files/37216050763.pdfIn PDF document text
    • http://ya-ke.cn/admin/upload/zimewefo.pdfIn PDF document text
    • https://bikinibody.be/wp-content/plugins/super-forms/uploads/php/files/ert5kfg479466qljt614rgokih/65776801357.pdfIn PDF document text
    • http://challendor.com/fckeditor/upload/file/51979117545.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160815d49ab772---winodaxaxanolilowaxubugik.pdfIn PDF document text
    • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/3bc61f05779a1cd4b05de5938498c700/81321086721.pdfIn PDF document text
    • http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c873142e0a7---13056213474.pdfIn PDF document text
    • https://cepatdaftargroup2.com/contents//files/walodebufipumanirutimeg.pdfIn PDF document text
    • https://thepetrichortouch.com/wp-content/plugins/super-forms/uploads/php/files/8k92hrfo0p3oi62i03bu6178d0/85984882553.pdfIn PDF document text
    • https://seeandhearbetter.ie/img/shop//contents/mokozanuneta.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/81qrash4s4pqldq4dap53vtsa2/51776661273.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=chapter+2+review%2Ftest+go+math+answers+6th+gradePDF link annotation

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