Malicious PDF — malware analysis report

Static analysis result for SHA-256 20aba3e11079368f…

MALICIOUS

PDF

66.2 KB Created: 2021-03-15 20:12:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b0b766e3fef491f6654aa08362076800 SHA-1: 15d16391f1b35fc4466abf9406730c0a4c851884 SHA-256: 20aba3e11079368f002bf2b2a80bd62ddc4891cfb4eee29cba2e801b1c317027
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/aws?utm_term=matlab+plot+line+between+two+points PDF link annotation
    • http://monstergym.ru/vutivepejazoxodubob2ofez.pdfIn PDF document text
    • http://uanews.website/consumer_reports_used_cars_2019mjdrb.pdfIn PDF document text
    • http://giveaway2020.info/reporting_regression_results_apa_tablegc71s.pdfIn PDF document text
    • http://kinorio5.xyz/ottlite_stopped_workingfva8q.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/temujonuwu/pleural_fluid_examination_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97ebd586-87fc-4b70-ac3b-b92f8d7cd183/vapejinogemiwukuwebi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bca31c9d-8e71-4ded-827c-eed705eee037/how_to_hook_up_samsung_home_theater_system_to_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/lopeteb/organization_structure_ppt_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jezekemunidup/pudaxunozipuxufopetalubi.pdfIn PDF document text
    • https://s3.amazonaws.com/xijilesuzuxo/2007_mazda_cx-7_reliability_rating.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/endless_love_the_myth_violin_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/naqaab_bengali_full_movie_in_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/ambledown_gap_claim_form.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/us_guided_genicular_nerve_block.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/ladinuzonovenebexekik.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/make_app_from_google_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/fubatabi.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_off0000c6b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6B2 4956 bytes
SHA-256: d062bbf2107e300cf841f8fa78ab319a4449d8fb352a68136f9efc5a37db0c87
font_01_sfnt_off0000d7b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7B9 10612 bytes
SHA-256: e842d30f8a9a6741814a5e617292df3166b32fe0c361ad393adb888a614b79bf

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