Malicious PDF — malware analysis report

Static analysis result for SHA-256 e265598cec636c87…

MALICIOUS

PDF

496.2 KB Created: 2021-07-14 06:36:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 69843720440b7c230950b2335ccb054b SHA-1: 1d1fe8cfdad0c7f1ef2b238585e18e248b565166 SHA-256: e265598cec636c876f1aff79685658df467fb39854d783d769076eb32beaf720
94 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malicious files. ClamAV detected this file as Pdf.Phishing.Trojan, reinforcing the phishing and malicious payload delivery intent. The embedded URLs are likely part of a phishing lure to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier clean score 0.1687

Heuristics 4

  • 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.
  • 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://nuregio.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609ff79fb85d0---48668988183.pdf In PDF document text
    • http://vorne-sitzen.eu/pcms/content/file/xavozelisumividamipobi.pdfIn PDF document text
    • https://landatur.com/files/galeria/files/bexuwipupumuwujixa.pdfIn PDF document text
    • http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608422033ed17---bekidomatovebaj.pdfIn PDF document text
    • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/b173e663b2250d0f5f6549a4d800f9d6/1198463948.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2685225ad0---namitogozebowel.pdfIn PDF document text
    • https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/7tq4afm7d8qs18paajdpj0rhth/37279613146.pdfIn PDF document text
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce586db050---90137295522.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/ub61gokhnam7dt5me56pe6hu94/55876061154.pdfIn PDF document text
    • http://cnhhgj.com/upfiles/userfiles/file/3100038662.pdfIn PDF document text
    • http://gemculture.com/userfiles/file/mikafew.pdfIn PDF document text
    • http://euro-ex.com/images/blog//file/pebip.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e959047f474---12225956502.pdfIn PDF document text
    • https://noihoithanhtuan.com/media/ftp/file/rukawa.pdfIn PDF document text
    • https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/bcdde4a188ba2a6c9d2212c1f1ceee2b/98480750959.pdfIn PDF document text
    • http://geometrabottero.it/userfiles/files/86753649774.pdfIn PDF document text
    • http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfe06c5fda9---zexemexesegewemawigodasu.pdfIn PDF document text
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a202d054248---33752240211.pdfIn PDF document text
    • http://stkvn.ru/wp-content/plugins/super-forms/uploads/php/files/1552c6e158a1a057b4b337a9960163ea/vifipivipubixevekaga.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/13b5f86bc15f5e04cb1d4dd530c144a6/6135914475.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607f9375cd427---webanujoreru.pdfIn PDF document text
    • http://agroanaliz.by/upload/editor/files/tunibupixibiwonoboferuj.pdfIn PDF document text
    • http://willbramephotography.com/11383430509.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=last+day+of+college+quotes+for+friendsPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00076743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76743 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00077f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F5A 10968 bytes
SHA-256: e0f15a92ccbfc4032b1c71231dc4bca26ed46d21b976d2ede75be486ab33fa16

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