Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bbe64c54c8daa28…

MALICIOUS

PDF

67.4 KB Created: 2020-12-14 02:07:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0965f0687a61cd0bd97c5349d2239961 SHA-1: 9e067e45c1d2f8f0d69f06602f7068da32aeee22 SHA-256: 7bbe64c54c8daa28facd4786d3cb470d2c06d89cad814454f37cb5d2675db21b
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 0.9998

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://traffset.ru/123?utm_term=judgement+card+game PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc54c60bf71053ccb2cc44c/t/5fd6545713a48350e8105ed3/1607881816205/fond_du_lac_reporter_news.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc51312bd14ff0dd2b785be/t/5fcbe78764036b61439b8f6a/1607198600536/56318754748.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0feaf0a2757459be36412/t/5fc2798b9d79364840dd9dee/1606580619920/16674249842.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/sherlock_holmes_movie_worksheet.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce2ca8744041036fd03353/t/5fd012b73308cf4e6fc9585b/1607471802614/31717906836.pdfIn PDF document text
    • https://s3.amazonaws.com/naxozelozude/13_colonies_worksheets_5th_grade.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4a3d173fb5383b98662a/1606371901145/saxon_math_course_2_teacher_edition_online.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/category_management_principles.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/tunuvizesetakipeduje.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc50b202e34347c705eef2b/t/5fd02cd048ae4d1218f826a3/1607478483550/35090063325.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffb1ae9fc3622d51d09b9/t/5fc0dcea2dd96f59180f8c3f/1606474986198/diary_of_saint_maria_faustina_kowalska.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/vb_knowledge_matters_math_quiz_answers.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf615b5147b148042b0f58/1606377821327/33335352115.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_off0000cd4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD4A 5040 bytes
SHA-256: 52671b91b09dec903d72c1cf0447c950906f93073482d61b58736c25845d1a81
font_01_sfnt_off0000de55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE55 10244 bytes
SHA-256: 7d8fabf5fed78890193b52a32deb93370b9cc71780cfba8eb415caa36d6b6908

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