Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f69d2854869a548…

MALICIOUS

PDF

72.2 KB Created: 2021-05-07 05:28:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02194d22e716bdbcf23241b27909a168 SHA-1: f0ecbaad491a82780589e6a2412d0c8b6c3404ff SHA-256: 5f69d2854869a5485ca229c6aa9aa6ab93e6b70f23c54569238f807d80b771fb
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, one of which is presented as a lure for movie songs. The ClamAV detection and ML classifier strongly indicate maliciousness, likely a phishing or trojan delivery attempt. The presence of numerous URLs suggests a campaign to distribute further malicious content, potentially leading to a second-stage payload.

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://drafthe.ru/uplcv?utm_term=chameli+movie+songs+free
    • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/8d096a8a52bec96b34899b2c898f9280/16806615910.pdf
    • https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/5g5thfl8tisjsp7b70ktuaf86q/3011953738.pdf
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/b812828a08f86f42ac914b5a3cb3a32d/punevimigiki.pdf
    • https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/uluddiehdpabvb9d57ml14u27d/59476064347.pdf
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb8ba9575e---20252056065.pdf
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/3u1pilsejua9g4d854nde7ac01/46325442098.pdf
    • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/52r84btbb2280uu1j7634o5gtn/59924013307.pdf
    • https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/0a1636c230ff156d8d1595975e4d6998/puzurivivelibelutorivo.pdf
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609230508d49b---daduzabetituvuwaf.pdf
    • http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078ed9adf59b---8172882742.pdf
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/1biupatb308oseli5jg2k1rk64/worekabakematijowe.pdf
    • https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/1607603bca8ca8---87262596147.pdf
    • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/22e96e426cc31e21723e93398b27c78a/nitiradafifowe.pdf
    • http://www.stockholmswingallstars.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082a793d3895---sesovomariwuben.pdf
    • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607c9c1a6a20a---87194113630.pdf
    • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081648a3ace2---lodiputevafajonukugar.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000dd66.bin
8124b949417ee3dbf607fce4b63ca3fc3ce2b0e81a693c0f90077ea343d6532b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD66 5148 bytes
font_01_sfnt_off0000eebf.bin
5c1cfbdc045b61d67a4946807fade1a3d799dfcffa24d5745ae1604d08c8e4c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEEBF 10872 bytes

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