Malicious PDF — malware analysis report

Static analysis result for SHA-256 821417ddff6ff202…

MALICIOUS

PDF

79.1 KB Created: 2021-05-25 11:07:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c2a94069f3f0790386a014ddefc471b5 SHA-1: 66c4c96db1ee1109cda9fd58d054c243a4ac0fba SHA-256: 821417ddff6ff20283ffc9b2348161222bd72351823740f86302647bd5bad419
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated and unreadable, but the presence of embedded URLs and the heuristic firings strongly indicate an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9509

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 http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160abe86758d05---novelawiranufedileju.pdf
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160764955bd66c---botexiv.pdf
    • https://agentcctv.com/userfiles/file/vejutomegomupulusokisu.pdf
    • http://jonkmp.nl/img/cms/file/bikeni.pdf
    • https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/sg4mcsd4v963hg4oo2dcsm1jo7/43688224359.pdf
    • http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160735acbbface---wifawupalovugosuxali.pdf
    • https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cd3cc7d35b---82186240064.pdf
    • https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/b1e3aa66969622f1159eebad36ed96d4/bijinukupejijofixudubok.pdf
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a5068a5db4b---6276169564.pdf
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/cfs5lfmm400bluhf2shmre3o7b/zozisusuwifisibeziwu.pdf
    • http://kwik-it.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609de711d6ca7---nanam.pdf
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/54f9bfe897946d1b9ca8ab9bb7b6576e/46365023054.pdf
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607251482d7c6---83944015953.pdf
    • https://xn----7sbbjg7ctfs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3f72bd4747ea1f8f56642ec7d6da78f9/36982425606.pdf
    • http://phuocthuan.vn/images/pic/file/17048006530.pdf
    • http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc4f00140b---gomanaxiduli.pdf
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160773287ca8bf---21401921277.pdf
    • http://www.k-24.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071c35f6d586---dajugix.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=le+mythe+de+la+caverne+pdf

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