Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c834138fa43dd8e…

MALICIOUS

PDF

51.2 KB Created: 2021-08-24 20:51:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 2aa92be70c9e19915312bb72f0b43d86 SHA-1: a70245cbff41e24c5b90dbf04b1bdb59c9aa785d SHA-256: 0c834138fa43dd8e49a1fde779850d5fe7191de29a2da7a89a4e10e0b2b44a69
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample contains embedded JavaScript and numerous external links, many pointing to compromised WordPress sites or disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to redirect users to a malicious payload or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9527

Heuristics 6

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://medeeatour.ro/mm/file/wuboromaneb.pdf In PDF document text
    • http://irs-messtechnik.at/upload/mizakowuzozebevudezif.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107fc835139e---41500801653.pdfIn PDF document text
    • http://beloezoloto.ru/userfiles/file/muresos.pdfIn PDF document text
    • https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/4h9a5rc0qec6c4tobdfhavegcq/selagegonafobomi.pdfIn PDF document text
    • http://weddingceremoniesbybev.com/clients/72651/File/25941488398.pdfIn PDF document text
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a09c226ac39---nepekibejer.pdfIn PDF document text
    • https://theatresaucinema.fr/uploads/file/98261227113.pdfIn PDF document text
    • http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16072a0d392014---kerebavuxezavow.pdfIn PDF document text
    • https://truck-diagnostic.ru/wp-content/plugins/super-forms/uploads/php/files/ed2c6cf3d42de978bce57118699f557e/jowarifixemu.pdfIn PDF document text
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d6755359c---merefabaxiramu.pdfIn PDF document text
    • https://purebodycare.courses/wp-content/plugins/super-forms/uploads/php/files/g15pef583cdajv16qu1k7t4vh1/31717103848.pdfIn PDF document text
    • http://ancheng-medical.com//uploadfile/files/biwejoradovixo.pdfIn PDF document text
    • http://oryginalnedekoracje.pl/userfiles/file/juxufopefasujuluteri.pdfIn PDF document text
    • https://fullmagicweekend.com/ckfinder/userfiles/files/2456481775.pdfIn PDF document text
    • https://geneolock.com/locktactyuma/userfiles/file/49961734982.pdfIn PDF document text
    • https://renebeumer.nl/userfiles/file/32511375020.pdfIn PDF document text
    • https://taevlingar.se/images/pages/file/noxozi.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1608729c633cda---muxiwurolemaran.pdfIn PDF document text
    • http://carnow.jp/js/upload/files/dikunalabotejezugipir.pdfIn PDF document text
    • http://nccutrackandfieldalumniandfriends.com/clients/2/2c/2cea5a7e730406ee40dfbbde6098010c/File/jametotegulemagevuxore.pdfIn PDF document text
    • https://hotellemaritime.com/hotel/upload/files/kibupuvevaxinewepudepoji.pdfIn PDF document text
    • https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/b39gkdr7o2d9g94el65cbbokn3/21789059035.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=solvency+meaning+accountingPDF link annotation

Open this report in the interactive analyzer, or submit your own file for analysis.