Malicious PDF — malware analysis report

Static analysis result for SHA-256 4730986e9da8c17c…

MALICIOUS

PDF

203.8 KB Created: 2021-04-20 18:19:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0946a7002cedd02ad4855d50666f7458 SHA-1: 995f731388688da0526fa14a321024d92a0edd4d SHA-256: 4730986e9da8c17cd38bb01f8692028c03dc7942e8aed937e5ace6fe59e72914
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://leonvi.ru/strik?utm_term=la+la+land+mia+and+sebastian%2527s+theme+guitar+tabs PDF link annotation
    • http://mofonuf.medianewsonline.com/project_black_book_sample.pdfIn PDF document text
    • http://vemipujimovow.22web.org/dukabi.pdfIn PDF document text
    • http://juzawuz.iblogger.org/battle_royale_game_online_no.pdfIn PDF document text
    • http://tijudiwulewanuw.getenjoyment.net/bargaining_theory_of_war.pdfIn PDF document text
    • http://kizisuruz.22web.org/phet_balancing_chemical_equations_html5_answer_key.pdfIn PDF document text
    • http://ketaton.mywebcommunity.org/authoritarian_regime_definition.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/email_campaign_free_templates.pdfIn PDF document text
    • http://lurolubudoruk.onlinewebshop.net/beveiligd_document_printen.pdfIn PDF document text
    • http://doninedu.epizy.com/10110113226.pdfIn PDF document text
    • http://nelodetasa.rf.gd/jumoretun.pdfIn PDF document text
    • http://wudazebej.atwebpages.com/design_and_analysis_of_algorithms_tutorial_free_download.pdfIn PDF document text
    • http://wojixefem.epizy.com/fawixaburodulevapekuj.pdfIn PDF document text
    • http://vizepojuduw.rf.gd/22925045584.pdfIn PDF document text
    • http://rutuvofogiseba.epizy.com/veguvixobipulezu.pdfIn PDF document text
    • http://vanuragevexofe.rf.gd/23399118925.pdfIn PDF document text
    • https://s3.amazonaws.com/dozore/electrical_lighting_symbols.pdfIn PDF document text
    • http://zubiluwetij.myartsonline.com/accounting_related_terms.pdfIn PDF document text
    • http://vigevelo.rf.gd/spiro_compounds_nomenclature.pdfIn PDF document text
    • http://gebejofokim.rf.gd/rakivajexane.pdfIn PDF document text
    • http://jujewubimowe.rf.gd/modern_magic_made_simple.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002e7fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7FC 5356 bytes
SHA-256: 297a4c266b8ffbcdb08d1b87c9f66d8928b1528cbb11816be6c5ce8bf7cbe307
font_01_sfnt_off0002fa06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA06 11560 bytes
SHA-256: 7be846aa6995507c54c4230a21f1e0868184ec967b0bb2522de5a3cf0a6cfaca