Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc1344655a306201…

MALICIOUS

PDF

78.4 KB Created: 2021-07-17 15:38:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 0d6f00790705101e8fa643c45708bb7a SHA-1: 1baeca5940707a5f849486e777918cc7e590dc06 SHA-256: cc1344655a306201725e4072dc3a42f9fad36a87a7dc86b691af13638f58ad75
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as a PDF with embedded URLs, one of which is flagged as potentially malicious by ClamAV. The presence of these URLs and the ClamAV detection strongly suggest a phishing or malware distribution attempt. No scripts were extracted, limiting the analysis of specific execution methods.

Machine Learning

  • Nyx PDF Classifier clean score 0.1551

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://feedproxy.google.com/~r/sq/ugae/~3/u8n3KCQdUYc/square?utm_term=do+succulents+do+well+in+low+light
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e9433c2a6f785f58356f43/1625899836153/mukebusaxaviniramevuwe.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d47a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD47A 16792 bytes
font_01_sfnt_off0000ec8c.bin
cad41aa67de47508c2ae088828122e6a76e35b09170caca2dac3e493c366ae36		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC8C 16060 bytes
font_02_sfnt_off000115f5.bin
6b72c449b79813163f9ace2bd6537a6abff742a1e28490453522e09502bb6e67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115F5 10576 bytes

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