Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5db6eadd5de92ee…

MALICIOUS

PDF

79.9 KB Created: 2021-03-03 23:16:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0bc6d1a5ff9aae9816ebf07d6a2d137f SHA-1: b8bf89f41cb156ce0f502e56f65f43ee8779296b SHA-256: b5db6eadd5de92ee6bb3f5a85ba998fd6ccb9315d996ebb7ce33d88bfd8a57d2
96 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. 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 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/strik?utm_term=what+is+osha+30+certified PDF link annotation
    • http://pogawubujogeje.mypressonline.com/wordpress_admin_password_reset_phpmyadmin.pdfIn PDF document text
    • http://vuwimoxit.mygamesonline.org/mufinekudasubesibero.pdfIn PDF document text
    • http://fukiwurezopukof.mywebcommunity.org/how_much_does_a_nc_drivers_license_cost.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/gogoxowiniza/35272216043.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/how_to_write_an_explanatory_essay.pdfIn PDF document text
    • https://s3.amazonaws.com/lopadivupudexa/marketing_management_jobs_for_freshers.pdfIn PDF document text
    • http://ribigilubawedom.rf.gd/lg_hbs_900_headset_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/xekofodom.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/44091078520.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/mnemonica_for_everybody.pdfIn PDF document text
    • https://s3.amazonaws.com/jijari/dettol_bathroom_power_safety_data_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/93245998498.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/wujumadarulutuduni.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/marketing_campaign_design_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/baghban_rab_hai_baghban_song_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/datarofapakil/infant_lesson_plan_template.pdfIn PDF document text
    • https://s3.amazonaws.com/donukadizolin/cartagena_protocol_biosafety.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/abc_iview_drama_informer.pdfIn PDF document text
    • http://deroxemonak.epizy.com/48337508401.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/gazinug.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_off0000fba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA6 5396 bytes
SHA-256: 111c4de875c1158687de02a2be5e69f3554575f52be44786c941e776dc449c36
font_01_sfnt_off00010dfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DFE 10608 bytes
SHA-256: dec23a7b9f68c631f3ec35c3a3819a1ca3e3c8ca77e7bba16ecc6b1033133921

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