Malicious PDF — malware analysis report

Static analysis result for SHA-256 506a706c048ea3c7…

MALICIOUS

PDF

67.7 KB Created: 2020-12-19 05:49:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: bef7e4abfd7850a5c02d3095a0d91dbf SHA-1: 25dfc1716e8dd9a4563c745dd800184486f067b5 SHA-256: 506a706c048ea3c7cda9460d28b62b8bb1dd05beda0da6bb387ba227b9d725d4
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-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://trafficel.ru/strik?utm_term=breath+of+the+wild+guide+book+pdf PDF link annotation
    • https://felezawobo.weebly.com/uploads/1/3/4/8/134896203/penipumarotogitu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_5f8bd0089748a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368781/normal_5fba012acc7b5.pdfIn PDF document text
    • https://vuvajufuzuno.weebly.com/uploads/1/3/4/4/134480129/073ab2d638058c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446759/normal_5fb4d41c46039.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378379/normal_5fdd75e506afd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417983/normal_5fa2e7dceeb33.pdfIn PDF document text
    • https://rupovopijono.weebly.com/uploads/1/3/4/8/134863796/zivajowa_vekar.pdfIn PDF document text
    • https://duxoberadu.weebly.com/uploads/1/3/4/7/134718286/1761774.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501482/normal_5fbc5fdb1d1db.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/542cf361-f74b-4c36-b77f-c480be93a52e/duck_life_space_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e3514cc-a64a-4fb9-aae1-ef460144b5b0/saturday_night_misfits_tab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47a3d44a-c6cf-479f-be51-4c03a9a3d05d/russian_piping_tips.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/329d81db-a2dd-4235-a1a1-9a6fc1216f5c/49283745682.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ba765ac-3484-4faa-8ef9-92d63b06c017/sojixejobobuminopi.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_off0000ca4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA4C 5468 bytes
SHA-256: 7c0367b9adc8dae3d4c8f8567ea8a4761993f855db5bf19ed6260384790fad07
font_01_sfnt_off0000dcf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF6 10872 bytes
SHA-256: 7eb63fb89d55b83bca9dc1717d26310b89c6032f31997bf23db96ca0ba112c14

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