Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a6814a834d9d8b7…

MALICIOUS

PDF

74.1 KB Created: 2020-12-14 16:42:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 49d24730f998ce412d8c1a1b7d24c9b7 SHA-1: d746f989e7f82bf52b6680204971860ba943cbf6 SHA-256: 0a6814a834d9d8b76bd09f8d91a5259ffe840a2c602d09425238196fb32b3ff2
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://traffking.ru/123?utm_term=tecnicas+de+evaluacion+de+grupos PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4444366/normal_5fcb72f72bb22.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409250/normal_5f96819f9bcb8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467285/normal_5fcd0a8eb81c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424029/normal_5fb5b5653ce70.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421209/normal_5fce6b86171cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464532/normal_5fd698fd15388.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422628/normal_5fa207826af20.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b816629-ac50-4b7e-a6aa-874d95743ecb/37527046560.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81aca5ca-aced-4aa4-9c96-ab29cd05f32e/lodabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f2f2e50-44e3-448a-8fb8-9d72e01a551e/weather_radar_battle_ground_wa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/877f161d-ae2d-4541-bee8-97d8d6186122/48312768449.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/software_development_documentation_template_word.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b67ac1b-5395-4ee2-83b5-7e76bcf04ff1/black_and_decker_18v_drill_gc1800.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_off0000e39f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE39F 5248 bytes
SHA-256: 9aae82a186b966e91d0a77275deb25943a2de72c47206245e46b67102ab27065
font_01_sfnt_off0000f591.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF591 11172 bytes
SHA-256: a5b8144baab9933bdf638e91312a179157f8af7ab1b4cae2120954533cddeaab

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