Malicious PDF — malware analysis report

Static analysis result for SHA-256 dddfc1bd3bc34ca3…

MALICIOUS

PDF

48.4 KB Created: 2021-09-19 17:00:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: b1a91dc81a3902548fa78ee22b2c24d2 SHA-1: cca8500d2f4671f29e59afee9cadc472fcd208d3 SHA-256: dddfc1bd3bc34ca39faed608cd8b569020bd48baf67e84174d3baefccf00a3d9
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external URIs, indicating it is likely designed to redirect users to malicious sites or download further payloads. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests a tactic of using numerous disposable domains to host or link to malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5578

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://philabc.ru/uplcv?utm_term=machinarium+mod+apk PDF link annotation
    • http://chrisdepanneservices.fr/Sites/cds/files/97619642166.pdfIn PDF document text
    • https://asthasupermarket.com/userfiles/file/263535111.pdfIn PDF document text
    • http://factory-01.com/js/upload/files/nibusutid.pdfIn PDF document text
    • http://anhuizhkj.com/upload_fck/file/2021-9-13/20210913095851652753.pdfIn PDF document text
    • https://unitedfightalliance.jordanadams.com/ckfinder/userfiles/files/viresovexukexav.pdfIn PDF document text
    • http://registermycompany.in/admin/userfiles/file/74314773307.pdfIn PDF document text
    • http://bagiez.com/userfiles/file/pelarezuf.pdfIn PDF document text
    • http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/68986817616.pdfIn PDF document text
    • https://desco.scp.hr/files/78698290737.pdfIn PDF document text
    • http://boxethai38.com/upload/file/varikujimetovirikisunaluz.pdfIn PDF document text
    • http://www.sosonomo.com/ckfinder/userfiles/files/mobuzofaf.pdfIn PDF document text
    • http://beganijewellers.com/ckeditor/ckfinder/userfiles/files/vibukixisorego.pdfIn PDF document text
    • https://jokerprod.net/userfiles/file/wimideludusimuzetevezojup.pdfIn PDF document text
    • http://homokkepek.hu/editor_up/bolatenitut.pdfIn PDF document text
    • https://tort-art.ru/userfiles/file/9887019199.pdfIn PDF document text
    • http://fundacjahfg.pl/upload/file/20984696301.pdfIn PDF document text
    • https://machnhaduong.com/images/uploads/files/19839911658.pdfIn PDF document text
    • https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/25914735372.pdfIn PDF document text
    • https://dhins.com/testingsites/advantage_aviation/assets/media/file/6844398887.pdfIn PDF document text
    • https://bibonatura.hu/ckfinder/userfiles/files/jeguxunaletozibowan.pdfIn PDF document text
    • http://bangladeshceramicsociety.com/uploads/editor/files/tegexitonalepovok.pdfIn PDF document text
    • https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/7ad975090ca4f0cc4bb69fe5879480ec/wivesusokuguwafow.pdfIn PDF document text
    • http://wildpflanzen-planung.de/file/16446393279.pdfIn PDF document text
    • http://chipgene.com/image/files/20210905_082606.pdfIn PDF document text
    • https://ltssinternational.com/res/wysiwyg/file/8892307770.pdfIn PDF document text
    • http://kechengchem.com/upload/files/xutejetoko.pdfIn PDF document text
    • https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/qd2iheg1vchufqttstuckbse4g/42277911722.pdfIn PDF document text

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