Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0be73792f56f0ca…

MALICIOUS

PDF

41.7 KB Created: 2021-09-07 20:04:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2a80229955cda1e6e553ac9659222c2a SHA-1: e8c5ee09a4c4438381900dcc222fa49bdba10bf9 SHA-256: a0be73792f56f0caf7a44a8f13440b8082690b395c6905ed129b7795fd0cd5a0
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as a phishing lure due to its image-only nature and embedded clickable link. The heuristics indicate it's designed to resemble a legitimate document, likely to trick users into visiting a malicious URL. The numerous external links, many hosted on compromised CMS platforms or disposable domains, suggest an attempt to distribute further malicious content or conduct phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7328

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
  • 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 41 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.
  • 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://drafthe.ru/uplcv?utm_term=one+way+anova+questions+pdf
    • http://tokyoto.pl/UserFiles/file/97637303144.pdf
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607181f7c2765---dipasatew.pdf
    • http://mtcnx.com/upload/fckimagesfile/nubukawilur.pdf
    • http://banglenhospital.com/UserFiles/File/91967947976.pdf
    • https://gazelletr.com/userfiles/files/22562612170.pdf
    • http://www.lugashotel.com/data/editorfile/71370968246.pdf
    • http://marketingnews.fr/images/file/22385690330.pdf
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7586f4e271---19816238269.pdf
    • http://mlsy.cz/images/file/files/galebufejiwumuguzewelotiv.pdf
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c5b620bc5---nulasebenapivusexuf.pdf
    • https://glearningsolutions.com/userfiles/files/36117971472.pdf
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c8710b7b62a---vaputagunokurejumorolof.pdf
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160845ae496a57---95832923668.pdf
    • http://amicalelaique-guyancourt.fr/ckfinder/userfiles/files/bopizonewigar.pdf
    • https://kalyna.ua/sites/default/files/userfiles/file/26898497767.pdf
    • http://dailythang.com/userfiles/files/85249872841.pdf
    • https://galerie-louise.be/userfiles/files/85400451737.pdf
    • https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/5epvl9cq5b2igdfkajt2s3dlpl/35761575799.pdf
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611718153433d---97712226765.pdf
    • https://agencement-menuiserie-var.fr/stockages/files/mimipabamusobidaj.pdf
    • http://greatwalledmond.com/ckfinder/userfiles/files/57415209866.pdf
    • https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/l79edo071eb5cm1r40n3il9j90/waboxibapab.pdf

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