Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7e349626ec5796…

MALICIOUS

PDF

53.1 KB Created: 2021-05-27 00:00:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d9c2b7e9220dc542310305fe6000ea1 SHA-1: 72f8f457e4b02e93e3a5e90b2bfdf78255c74042 SHA-256: 2e7e349626ec5796466dc06538f4a1dd8bcd9bb6f6b469f5aa3ce09665f1e06c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of links pointing to compromised WordPress sites, suggesting it functions as a link farm for phishing or malware distribution. The presence of embedded URLs and the nature of the heuristics indicate a likely attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6648

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 https://queure.ru/uplcv?utm_term=ran+kulakukan+semua+untukmu+cover
    • https://braviengenharia.com.br/wp-content/plugins/super-forms/uploads/php/files/pgedcjboogemktd322ks1u6no6/sabujipojikatamobejexoja.pdf
    • https://apparel.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/160273ddd2d1acdbfdbd367b1f7ae5f5/jarapom.pdf
    • https://clubforeducation.com/FCKeditor/userfiles/file/gujepunikewetotu.pdf
    • http://zuche0551.com/upload/file/41316485068.pdf
    • https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/0f7d558bb1f34773fd88a105af6d0843/37339242131.pdf
    • http://mfcwestenkwartier.nl/beta/userfiles/file/95047423354.pdf
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/90525c351e163993d2e4dfc697754991/22374383549.pdf
    • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/473013f8927ab4c6f8458efd5928f2d9/92187584594.pdf
    • http://metaglas.kr/userData/board/file/duxawif.pdf
    • https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/ma6enosc01o4h7hpftqqso0rv2/70908986841.pdf
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/2si7mahokh9lvfi6ntd09jam4v/35558953433.pdf
    • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/8ee694c097cb8a362964ff294a837abb/52929194126.pdf
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ccf875cd28---pemati.pdf
    • https://akita-inu.lv/www/files/files/6099198601.pdf
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/b607f869d7d711fa0fd4f9c64df106de/gebizo.pdf
    • http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a1dec65fde6---88851542509.pdf
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/2dc14421da2631908a64e37aad26d4c8/43788104193.pdf

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