Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c426946ec405825…

MALICIOUS

PDF

72.9 KB Created: 2021-03-20 07:24:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 7a71f0a851df87dfd77ab1de6f60716f SHA-1: b180bfe418af52065376bec022b920293b52ddbf SHA-256: 9c426946ec4058257db92de7b49090de3ba1d950899daf0a4944aca4302f6be3
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://botokaw.ru/wix?keyword=2010+ap+physics+b+free+response+answers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408464/normal_6031b493657cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479674/normal_5ffc16efb20a7.pdfIn PDF document text
    • http://scandisvet.ru/canon_eos_5d_mk_iii_manual4ird8.pdfIn PDF document text
    • https://cdn.sqhk.co/mifigatira/idgejij/lonerider_brewery_wake_forest.pdfIn PDF document text
    • https://cdn.sqhk.co/vobevufubito/EUqUhfP/20979069712.pdfIn PDF document text
    • https://cdn.sqhk.co/wakewafo/f6WlpLR/esl_playoffs_dota.pdfIn PDF document text
    • https://cdn.sqhk.co/bokapapukopa/a7hcfZq/red_ball_game_4.pdfIn PDF document text
    • https://cdn.sqhk.co/jubawiwa/ZjjygdE/81532506948.pdfIn PDF document text
    • https://cdn.sqhk.co/dojaxeje/ibajebK/pennsylvania_game_commission_hunting_license.pdfIn PDF document text
    • https://cdn.sqhk.co/gutinisiv/HgcjeV7/xupisoki.pdfIn PDF document text
    • http://alisabor.design/what_best_describes_the_overall_theme_of_the_wife_of_baths_taleasrjo.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/metakibeme/acknowledgement_for_seminar_report_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa36c8ca-15af-49ae-b06e-e53f517cb872/73762670123.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c622a1f6-e1eb-4f5e-bc16-a6487bc9bd85/simple_trading_strategies_that_work.pdfIn PDF document text
    • https://s3.amazonaws.com/gavapozalilup/age_of_sigmar_tournaments_2021.pdfIn PDF document text
    • https://s3.amazonaws.com/lokijuronig/44494910519.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/goodbye_letter_to_drugs_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b4c93ba9-753e-4a92-9b22-ec04c79ec579/rinebipovezodiv.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_off0000da74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA74 5636 bytes
SHA-256: bb76489091799717e0e06fab9a1d65cac7c3c568ff09df8fe07ec43abd5c1183
font_01_sfnt_off0000edb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDB5 12260 bytes
SHA-256: e0a2dab500fc40a68e2d876aa451c1e2922777aa31881b9ec777b931ceac8ec1

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