Malicious PDF — malware analysis report

Static analysis result for SHA-256 26cac69059f8965e…

MALICIOUS

PDF

62.5 KB Created: 2021-08-20 10:19:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: bf6eb398ec6a652b901344378b9371f5 SHA-1: 381d81c5df0fdc73f5714555af4c2ecc9dcaeff5 SHA-256: 26cac69059f8965e0f4a132f4a77b428eaba16e00225707f3bdb965ea52853d0
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which point to compromised WordPress sites or disposable domains, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware distribution. No scripts were extracted from this sample, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9569

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://zekidilektekstil.com/images_upload/files/jovubilezaje.pdf In PDF document text
    • http://adance0112.com/upfile/editor/file/68580018252.pdfIn PDF document text
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/e5c4d23f4cd82140160da0bae7caaff2/xijowudegodebizejinika.pdfIn PDF document text
    • http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/nomelawazaxano.pdfIn PDF document text
    • http://moneymaker-gold.de/files/81804104.pdfIn PDF document text
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/b9g7gb42mn5ga4k332oj3in5kj/zinunajimaliwa.pdfIn PDF document text
    • https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/d344eb32d017dad7059a382c86c54f1c/87289390377.pdfIn PDF document text
    • http://cfacgroup.com/uploads/FCK_files/file/31957541165.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607df7f488b76---sepakebav.pdfIn PDF document text
    • http://gilendor.cz/userfiles/file/46693597300.pdfIn PDF document text
    • http://www.hgbehringer.de/img/files/files/tekalonak.pdfIn PDF document text
    • https://ensasoft.com.tr/wp-content/plugins/super-forms/uploads/php/files/ainkctj5sc2nf262jvfh9ms9qi/vezoxi.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e4f6d431b9---56028651238.pdfIn PDF document text
    • http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c72af45defe---kovamerasuvugulanuso.pdfIn PDF document text
    • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cc982a607e5---13493890135.pdfIn PDF document text
    • https://awlights.com/wp-content/plugins/super-forms/uploads/php/files/1744ab5ac04043cc8764c878effb24c2/99877222958.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/d4d68e33de871188be587d6473a89325/30621110782.pdfIn PDF document text
    • http://karthikeyanjayaram.com/userfiles/file/94346170557.pdfIn PDF document text
    • https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16115e9376018b---momifaputimolifefopi.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cb005929b2---mudujabofewegavujol.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1aa1dcb4bb---fagavute.pdfIn PDF document text
    • http://thanhlapcongtykiengiang.com/upload/ck/files/sukavepofipo.pdfIn PDF document text
    • http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/160969e96ee9aa---gisajoguvibomirogumufene.pdfIn PDF document text
    • https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/rlga3clgqo75pshmeug16i0ot8/roxalom.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=what+is+the+best+roomba+vacuumPDF link annotation

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