Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7d6c4201e177e7…

MALICIOUS

PDF

62.1 KB Created: 2021-08-03 22:20:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: 4d8c7a7c2df2b8bb437ea974c32e8c03 SHA-1: af36041c1c2a16873744221cd43c81901b861cd1 SHA-256: ea7d6c4201e177e7526a91ca7a5d24a4a61a8ba9f3a63f3ea48d4ecf113d85a1
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of links pointing to various domains, many of which appear to be compromised or disposable hosting. This structure is characteristic of a link farm designed to distribute malicious content or phish users. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6466

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://air-ned.com/uploads/files/87992555453.pdf In PDF document text
    • http://kino-cosmic.ru/sadm_files/zimiluwasafosev.pdfIn PDF document text
    • http://vinhthuan.vn/upload/files/55713346725.pdfIn PDF document text
    • https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/e7089bca0ac0c315b377a87a0b76cbdb/jilapadit.pdfIn PDF document text
    • http://adirondackseafood.com/ckfinder/userfiles/files/335594128.pdfIn PDF document text
    • https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/664d15fe1ec543a33076d0797c0cabb8/90433256929.pdfIn PDF document text
    • https://detskeihriska.eu/ckfinder/userfiles/files/konexenusexigefodatefogi.pdfIn PDF document text
    • http://skiflogistics.ru/userfiles/file/40229855294.pdfIn PDF document text
    • https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/j08ptje9o7bael8l4nrrq28icu/26632146383.pdfIn PDF document text
    • https://binarbaidrealestate.com/public_html/userfiles/file/8539574120.pdfIn PDF document text
    • http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/160aabeefdc3d6---52433874087.pdfIn PDF document text
    • http://smflow.in/admin/uploads/file/wewotuvezet.pdfIn PDF document text
    • https://xn--22ck6bdp5cach0mc23a.com/ckfinder/userfiles/files/83249544333.pdfIn PDF document text
    • https://ikitellirezistans.com/upload/files/49434868258.pdfIn PDF document text
    • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/iqk5au5qtui8v1cdl791ggg5j7/63864380782.pdfIn PDF document text
    • http://alexforstarlight.com/clients/4/41/4125d763bdae894b2c088b8c4c0f4705/File/94623514679.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160914c75a5f3a---98155618597.pdfIn PDF document text
    • https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/0fd6b1b4b1992eb2b03bb561aa745b39/kegimope.pdfIn PDF document text
    • https://ehotelgateway.com/bot/ckfinder/uf/files/boleveraruwosuzutefa.pdfIn PDF document text
    • https://jamisonfurnace.ca/userfiles/files/napezit.pdfIn PDF document text
    • http://dichvutheapec.com/upload/FCK/file/maforipijijalafo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=best+app+to+hide+apps+without+rootingPDF link annotation

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