Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7651bdfbe4abed9…

MALICIOUS

PDF

72.9 KB Created: 2021-07-13 09:49:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 108bd22b5f1e15d2cade62da6fb3c8b1 SHA-1: b9238c9be1fbc3cf96d5e01633e416c425728749 SHA-256: e7651bdfbe4abed9378ee3b8fb7012c05b5bca1728df06fbbc874e0beb7e919d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The presence of embedded URLs suggests a phishing attempt, likely directing users to a compromised site for further exploitation. No scripts were extracted, but the PDF structure itself is indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9511

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://feedproxy.google.com/~r/razvivatel/yapz/~3/pL_UGxDroB4/square?utm_term=lord+of+the+flies+thesis+statement
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e7aa9c46a8e17713e2384f/1625795228606/formula_for_hess_law.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ecf1a03b21860fe66b019b/1626141089012/32087721839.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ed371ae255175820be9b8c/1626158874855/trending_hairstyles_for_boys.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60e92b9ef229ba2ea837555e/1625893790835/ginos_pizza_federal_way.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ecae8b6e24b670b5958ea8/1626123915829/torque_pro_free_download_android.pdf
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e85b85ff5b651d083ed858/1625840517657/mobile_meat_processing.pdf
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60ed0c07c2b47a61419ee3cc/1626147847736/71912078288.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ecc5f8410b6f53fe141381/1626129912144/gikaletus.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_off0000c247.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC247 16792 bytes
font_01_sfnt_off0000da59.bin
33f504ce69c53208d466bc6ae7f26ff2e7a0edf912574e737111c8c80ba9245e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA59 14868 bytes
font_02_sfnt_off0000ff71.bin
04b49eb6716bc60d56080e7fd1b7425324b773819e3e3918c1eb4ed59f2cee2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF71 10576 bytes

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