Malicious PDF — malware analysis report

Static analysis result for SHA-256 7040adba41dbe08f…

MALICIOUS

PDF

75.1 KB Created: 2021-04-25 04:49:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: f609ae3ea7a65e6c53210c0fab60aaa9 SHA-1: de8c3a44ba2a9af482ac1bdf3600e23ae915fdcf SHA-256: 7040adba41dbe08f066af33a30cc5eb69dc8b8ea2b5fe1d09011100e36203afe
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a URL that is flagged as malicious by multiple heuristics and a machine learning classifier. The document body, though heavily obfuscated, contains text related to 'Dixie chopper parts' and the authoring application, suggesting a lure to a malicious site. The presence of embedded URLs and the overall detection by ClamAV indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/strik?utm_term=dixie+chopper+parts+by+serial+number PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4501998/normal_603e4104779e3.pdfIn PDF document text
    • https://cdn.sqhk.co/satofurijob/jjhaIIu/kritika_the_white_knights_guide_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493569/normal_5fe734b513451.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453115/normal_6029368a502d7.pdfIn PDF document text
    • http://zofufina.22web.org/88323295606.pdfIn PDF document text
    • https://nanoxoxudotu.weebly.com/uploads/1/3/0/8/130814682/6552434.pdfIn PDF document text
    • https://xepinepuro.weebly.com/uploads/1/3/0/9/130969238/pobilim.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495058/normal_6003bdc602515.pdfIn PDF document text
    • https://cdn.sqhk.co/ditetona/cjhGigt/supixujix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407818/normal_600a259626a73.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/jubiferekaka/37_dirty_would_you_rather_questions_for_couples.pdfIn PDF document text
    • https://3c3713de-992c-4571-92b4-00afcb8cb2c1.filesusr.com/ugd/9dbdb2_6b9b3cb117204d8f81af18b4586b90f9.pdf?index=trueIn PDF document text
    • https://e0eedba4-cf99-4c42-97f5-d3f9ae5832dd.filesusr.com/ugd/e36ea7_8d75ee4cae6a4feaa647d137e384e8ce.pdf?index=trueIn PDF document text
    • https://c8019651-2137-4367-b38e-775fff3f8a75.filesusr.com/ugd/fc5a02_0e99e322d7754eb8bbd596e24c0b9af2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kujapomib/free_sanyo_tv_remote_app_for_iphone.pdfIn PDF document text
    • http://rigutogivopum.epizy.com/microsoft_dynamics_nav_training_material.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/idle_champions_achievement_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/carbon_steel_pipe_fittings_dimensions.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/3_point_likert_scale_template.pdfIn PDF document text
    • http://tetiduba.rf.gd/alabama_abortion_law_2020.pdfIn PDF document text
    • http://lidiwerefibe.rf.gd/neonatal_hypoglycemia_guidelines_2017.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_off0000e88d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE88D 5480 bytes
SHA-256: 9ed368aa016b409b4b1daa67b11c81abd6a7a56a8cff0cb69d841d13bb3b6aac
font_01_sfnt_off0000fb18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB18 10636 bytes
SHA-256: 6dafaa973bfffca653485ac130e741d6200aa0b155387661ee8a7cf9b159abe1

Open this report in the interactive analyzer, or submit your own file for analysis.