Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a7308e9e321d9e0…

MALICIOUS

PDF

76.6 KB Created: 2021-02-18 19:57:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54e0b767c6b331cc23453dafc25eb092 SHA-1: 1b501d7b61f24503a57585cc19dcd1ef3669805f SHA-256: 9a7308e9e321d9e0e1119adf800a2e719ccb6aca2708a37f663dd9651a15cf46
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL `https://leonvi.ru/wix?keyword=zombs+royale+io+mod+apk+download` suggests a phishing or social engineering attack, attempting to trick users into downloading a fake application. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed for user deception.

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://leonvi.ru/wix?keyword=zombs+royale+io+mod+apk+download
    • http://xomapometafa.iblogger.org/alif_laila_bangla_book.pdf
    • https://cdn-cms.f-static.net/uploads/4373757/normal_601d3a7b33745.pdf
    • https://cdn.sqhk.co/sobutexe/ijhghih/steps_of_strategic_management_process.pdf
    • https://cdn-cms.f-static.net/uploads/4446492/normal_600d8d5ba987f.pdf
    • https://static.s123-cdn-static.com/uploads/4501356/normal_6000bc5fefa28.pdf
    • http://creditinquiry.info/18348591481i3cew.pdf
    • https://cdn-cms.f-static.net/uploads/4492546/normal_5fd65e8a413e6.pdf
    • https://cdn.sqhk.co/tevosenijosu/ejjvitJ/police_bike_traffic_rider.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vijanemafe.rf.gd/gta-_sa_crazy_img_editor_free.pdf
    • http://luwikomoxure.epizy.com/osrs_fossil_island_wyverns_slayer_guide.pdf
    • http://ravitog.rf.gd/how_to_calculate_power_dissipation.pdf
    • http://wupaxozejite.rf.gd/mexaxosu.pdf
    • http://sudurima.rf.gd/vozes_do_cristianismo_primitivo.pdf
    • http://tidefos.epizy.com/48705289483.pdf
    • http://kibesana.epizy.com/79321898733.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec19.bin
44e4098ddbc781d104f6974b174f5ac4dbd01d503ac9aced578695200bea9755		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC19 5460 bytes
font_01_sfnt_off0000fea6.bin
86e549c83475c93cdd4d4a8225dba1c3a2e8872b3d04fb626e89a48456ff688d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEA6 12436 bytes

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