Malicious PDF — malware analysis report

Static analysis result for SHA-256 71722be56ebea2c7…

MALICIOUS

PDF

69.8 KB Created: 2020-11-18 09:00:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c1f9afd64084de4b4fa4d37878ac7ca1 SHA-1: bd5825474ec20b1c8c1e58905ee4ec2e5258b2cb SHA-256: 71722be56ebea2c78fdaa3bcbb03e5172fbb1c1e48e264883f8909bc0146e90b
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://trafffi.ru/strik?utm_term=nfpa+1+fire+code+2012+edition+pdf+free+download PDF link annotation
    • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/6973536.pdfIn PDF document text
    • https://gororumemi.weebly.com/uploads/1/3/4/5/134517819/fa1a75.pdfIn PDF document text
    • https://lejonajij.weebly.com/uploads/1/3/4/6/134651266/fipitetejuragefaxite.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404107/normal_5faef56bd8041.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458856/normal_5fae87913f6c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497082/normal_5fb4c38dd7358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385216/normal_5f8eeaf5e258f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365594/normal_5f876c14f163b.pdfIn PDF document text
    • https://wumudirega.weebly.com/uploads/1/3/4/5/134515906/18533.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/6596627b-388b-47d6-80d5-31867cbda52c/lesitekus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3818d1a3-8452-428c-9a5b-fd75465774ab/requests_the_pleasure_of_your_company.pdfIn PDF document text
    • https://s3.amazonaws.com/figugipopar/secret_life_of_bees_important_quotes.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/atalanta_vs_juventus_match_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28f5b337-7c62-4fd6-af78-45a2959cacca/87629642481.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/litinapijagulo.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_off0000d2b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2B6 5356 bytes
SHA-256: daad9c96d6f9ca3707f8241146f76ddc4a5376f29813afbacc2d78d590577f60
font_01_sfnt_off0000e51e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE51E 10336 bytes
SHA-256: 13365ba274ad91afa8870e493444a7b0a43feae0537721cbdc90a2baafb77690