Malicious PDF — malware analysis report

Static analysis result for SHA-256 099825f4c64346c6…

MALICIOUS

PDF

56.5 KB Created: 2021-09-04 11:31:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: c8e61aa0fbf426b5509a662d6ccc3f64 SHA-1: cf809873850128b7dba728a2cb3d3deb05996c46 SHA-256: 099825f4c64346c658b16bec98b075ce36a3512c2cf7375cf1a19c05b5be29d5
154 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous compromised CMS uploads, indicating an attempt to distribute malicious content or phish users. ClamAV detected this file as Pdf.Phishing.Trojan, and ML classification also flagged it as malicious. The embedded URLs are designed to lure victims to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6212

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://wonikquartz.com/upload/editor/file/1628647948.pdf In PDF document text
    • https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/6721a9f3f589bae943746c60446b00ab/xotak.pdfIn PDF document text
    • https://www.tyrtaios.gr/ckfinder/userfiles/files/41465150408.pdfIn PDF document text
    • http://vote4dannybarry.com/clients/2/2f/2f5d4f67c16906f9b09010289963de11/File/rejazinawipixola.pdfIn PDF document text
    • https://partroyfuneralhome.com/partroy/assets/file/10841572324.pdfIn PDF document text
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/96e03d454de7b8ea7bc0271ccf1b07c0/31681108012.pdfIn PDF document text
    • https://digireg.nu/upload/kavudal.pdfIn PDF document text
    • http://web68s.com/upload/files/nesenutidujazonot.pdfIn PDF document text
    • https://ngoctraithaibinhduong.com/uploads/news_file/gemonekibufirelopiwilat.pdfIn PDF document text
    • https://koratspring.com/upload/file/jirawizunolekaninakovi.pdfIn PDF document text
    • http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161001b581e427---17075433982.pdfIn PDF document text
    • http://stacjaregeneracja.pl/userfiles/file/zolepogijila.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16092f83a2bee7---98396389810.pdfIn PDF document text
    • http://biogenetec.tw/image/files/20210714_150921.pdfIn PDF document text
    • https://protradingindia.net/userfiles/file/21458000744.pdfIn PDF document text
    • https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/0b0b69cd97508af41cc239cc163c51d8/70886207834.pdfIn PDF document text
    • http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ff4be925f3---61731636638.pdfIn PDF document text
    • http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/82d0ohh1ud421q3kdveh19iuq0/mujutagigimexepog.pdfIn PDF document text
    • http://dynamic1984.com/user_file/file/94823670691.pdfIn PDF document text
    • http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e56770cf7b---xazosoxo.pdfIn PDF document text
    • http://sevvalturizm.com/rsm/files/dolovatova.pdfIn PDF document text
    • https://monuments-msk.ru/wp-content/plugins/super-forms/uploads/php/files/56a0c2b38e3916a9d9ae27deb3dbf6ff/xarujamosejibezodonibise.pdfIn PDF document text
    • https://jiptv.nl/wp-content/plugins/super-forms/uploads/php/files/oquiv36splds9gqfgbg6bp9cgl/medifufejinez.pdfIn PDF document text
    • https://istanajp2.com/contents/files/taberonem.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=syndicate+bank+dd+form+pdf+downloadPDF link annotation

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