Malicious PDF — malware analysis report

Static analysis result for SHA-256 60e4171ca084082d…

MALICIOUS

PDF

69.5 KB Created: 2020-11-26 05:54:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 1fa30228b46e6604378fd2283663d6b2 SHA-1: b45edfe4a12f83e2cfd4df232e813d103cb2ef5e SHA-256: 60e4171ca084082d0f9a0c0776dcd66c6e3014f281f58118d94a3f8b10455795
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create malicious PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://trafficel.ru/123?utm_term=james+bond+supports+international+women%2527s+day PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387938/normal_5fb5dbe652060.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368218/normal_5f8a08862af7c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zedilegol/66_unblocked_games_earn_to_die.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18511f9b-f487-4df7-931a-bbb192b36bb7/38997885708.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb3760fa-739c-4bbc-bc62-3d893630831e/sibikunimavoj.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/dark_theme_website_templates_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65c5ba03-4063-4a49-931a-67a07389c83b/persona_4_marie.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/lugetalulokazazaralizemu.pdfIn PDF document text
    • https://s3.amazonaws.com/bawalidamovidud/juxonevafedevabanisarepa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d986ef6-4d59-4837-b7f6-392a47b02024/yapay_zeka_nedir.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2C0 5344 bytes
SHA-256: 4352b4e38336094055a3a128a4d88e9c139d6528aa07a3012c79108d536bccaa
font_01_sfnt_off0000d4db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4DB 10684 bytes
SHA-256: 08d38a5e75f4809a3b39ffa10d265e398ff60a84f8c40257aa90df55c83a4b84
font_02_sfnt_off0000f930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF930 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34