Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad39f1e27a9f0daf…

MALICIOUS

PDF

47.4 KB Created: 2021-09-09 18:47:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 597d8b149fe358d3109c8b78d7eb5343 SHA-1: 5409543802b56b41bbafcf96b66009998a2d1b5c SHA-256: ad39f1e27a9f0daf333ed7afffa356d57ad0120cec78dc75a57aff119e5bd627
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains, indicating a link farm for malicious redirection. ClamAV detection and ML classification confirm its malicious nature, likely serving as a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7471

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 https://abogadosaccidentealicante.centralcms.cloud/galeria/files/15862498633.pdf In PDF document text
    • http://dulwichtaxi.com/survey/userfiles/files/nikafepezodipilaxonarule.pdfIn PDF document text
    • https://cgeminfos.ma/upload/file/marunop.pdfIn PDF document text
    • https://siltri.com/fck_upload/file/63387654297.pdfIn PDF document text
    • http://rexant.by/upload/editor/files/wogofepudadamu.pdfIn PDF document text
    • https://pindimana.in/uploads/file/nefeg.pdfIn PDF document text
    • http://ttmplus.com/userfiles/files/79793031761.pdfIn PDF document text
    • https://u-spot.biz/js/ckfinder/userfiles/files/jabedufusexelamesive.pdfIn PDF document text
    • http://skncn.com/u/files/daxeb.pdfIn PDF document text
    • http://domuran.pl/files/file/96142981451.pdfIn PDF document text
    • https://mt-creativestudio.com/ckfinder/userfiles/files/60158833949.pdfIn PDF document text
    • https://semut73.com/contents/files/48905193992.pdfIn PDF document text
    • http://clubselectionvoyages.com/images/file/jurisubopal.pdfIn PDF document text
    • http://boletos.luzservicos.com/ckfinder/userfiles/files/35604028898.pdfIn PDF document text
    • https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/2e4bc36fafd45fa030e48130dbe4925e/60588693640.pdfIn PDF document text
    • http://angelojrobles.com/admin_initial_test/userfiles/file/39243646884.pdfIn PDF document text
    • https://ozora.schaffsen.com/contents/file/lagezitafubetodosigare.pdfIn PDF document text
    • http://thepokewave.com/uploads/files/puvadawefunirudugaleza.pdfIn PDF document text
    • https://relaxbotanika.cz/ckfinder/userfiles/files/4039850471.pdfIn PDF document text
    • https://tapuionoticias.com/ckfinder/files/59437793349.pdfIn PDF document text
    • https://mariellatriolo.it/public/file/fixogudugajuj.pdfIn PDF document text
    • http://theponghop.com/upload/files/72328905857.pdfIn PDF document text
    • http://pharmabiosolutions.com/filespath/files/20210909012511.pdfIn PDF document text
    • https://ganport.pl/userfiles/file/teruvosasupozines.pdfIn PDF document text
    • http://klick-tipp.info/ckfinder/userfiles/publics/files/jurarekulogud.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=loader+windows+7+ultimate+64+bit+service+pack+1PDF link annotation

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