Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0290d8f598b2651…

MALICIOUS

PDF

61.7 KB Created: 2020-11-24 20:24:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3131e673c9a1a76f46a9827b4da235e8 SHA-1: 95c86d7882af2208a7cc024e6f668b0181597186 SHA-256: d0290d8f598b265158d4bcb7a189a38e189ef1e3d5f9ae036d2abb3c69b24c60
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 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=lanoline+rosehip+oil PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367625/normal_5fa9492117ebe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420031/normal_5faa83db2db21.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369762/normal_5f944314c57e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383912/normal_5f8d04c6a4aaf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371497/normal_5f9c2a70d961e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491152/normal_5fb4fad89353a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450504/normal_5fbb70ef466c9.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/xezujuxoz/domimugegugaxebesunobebaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/09abc780-9fc9-43fb-a498-7e29a27d0834/96917516907.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3f72abf-bd93-44c2-98b4-a18b76a0e17e/menurunudowe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6a67cfe3-7ebe-49df-85a1-bc1973012d89/19873849032.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d0983847-ef2a-4143-831f-7467add3b009/38_chevy_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8cebbcf-8cbb-40b3-900f-01ea6b0bb2f9/william_lamontagne_jr_criminal_minds.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_off0000b41b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB41B 4848 bytes
SHA-256: 8141047f47bed6b4d8c3795a1ebb5ce618f1031dc7e64e1e395b17af8cef9b35
font_01_sfnt_off0000c490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC490 11128 bytes
SHA-256: 3c80e718df3b871af7c3a3bb6c2386d5124c3e5d9d5bfe1dd42f3d2c8bdc56da

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