Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce3f296c344eee26…

MALICIOUS

PDF

81.3 KB Created: 2021-07-16 13:45:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 3ea46831e46d8db280906265ba1dd8e7 SHA-1: 7830b433e935ec9e76a0c3a4025ba26977d38df9 SHA-256: ce3f296c344eee2691d3df1e577a79c8a34d12db04770b71bbb82c280235dfbe
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a signature indicating phishing and trojan activity. It contains an embedded URL within its metadata, which is a common technique for phishing attacks to redirect users to malicious sites. While the document body is truncated and unreadable, the presence of the embedded URL and the ClamAV detection strongly suggest a phishing attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.1630

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/sq/ugae/~3/UZrB20b2Dcg/square?utm_term=operating+budgets+and+financial+budgets
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60ee04341f6a95122873f36e/1626211380925/fidanemuxupanelasipozalix.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_off0000dee8.bin
864b29ac27408989e3d07113d9a3ffc3315c037507b9ef93404faa9d488c3661		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDEE8 16068 bytes
font_01_sfnt_off00010874.bin
aa72e6bc370c1193ccfd86af58c383c5d80284bd6f03cb5cd4a72d2c38a6c972		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10874 10940 bytes
font_02_sfnt_off00012191.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12191 16792 bytes

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