Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eb5e003a41f8789…

MALICIOUS

PDF

40.2 KB Created: 2021-07-18 19:07:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: fdece9a826e2b31c630d1ae680af93a5 SHA-1: b96e041c63bcead7bf79e03fe07fe84faf2811ee SHA-256: 0eb5e003a41f878965cf7cba5a8513ef02016b4c1d6c02a14ebf9f62a2445af3
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed as a phishing lure, using an image-only presentation to conceal a clickable element that redirects users to download a malicious file. The embedded JavaScript stream and numerous links to compromised CMS uploads and disposable hosting indicate a clear intent to distribute malware. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9416

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 40 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://lideparts.com/userfiles/file/1620480247.pdf In PDF document text
    • https://stradatextiles.com/upload/ckfinder/files/20265437222.pdfIn PDF document text
    • https://alamansyria.com/userfiles/file/98953469646.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f897ff2a30---tivuz.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e55b4d04a12---butagi.pdfIn PDF document text
    • http://nationalcoopadvisors.com/userfiles/files/timifewaxuxazugumifisazez.pdfIn PDF document text
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/feb123bcc2743cb8a9d775e5b78579b7/lomakadilu.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160a55ab94e802---69400319442.pdfIn PDF document text
    • http://ackerviewguesthouse.com/userfiles/file/23826562330.pdfIn PDF document text
    • https://serviceservice.eu/userfiles/file/bewumevanigupemirivo.pdfIn PDF document text
    • https://nestsearch.in/admin/uploads/file/24257621280.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079b2c44f3d4---kidilotefud.pdfIn PDF document text
    • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/3cef6b611428244bdde631321415afa7/vitukoxefenopus.pdfIn PDF document text
    • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/bec3283ff85bc511fddbc21c3f405651/lowapasuvogut.pdfIn PDF document text
    • http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9661fd81e0---gisixomedidomole.pdfIn PDF document text
    • http://faithleader.org/js/ckfinder/userfiles/files/vimerajor.pdfIn PDF document text
    • http://wskinbody.com/data/boardData/files/5973779332.pdfIn PDF document text
    • http://hanhthien.net/uploads/file/34153677379.pdfIn PDF document text
    • http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca2fc8d949e---96341232955.pdfIn PDF document text
    • https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/9fe7c483a9c1f9793228c72c5e68a9d5/16082641378.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=you+are+beautiful+inside+and+out+in+spanishPDF link annotation

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