Malicious PDF — malware analysis report

Static analysis result for SHA-256 7dcd7b070d252f13…

MALICIOUS

PDF

78.5 KB Created: 2021-07-15 19:32:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 07f5529fea9e61714fb34629df1144b4 SHA-1: d490f0287a960312da3f7249a78eb18967209b08 SHA-256: 7dcd7b070d252f1380045bdf5c7e8fa9d17e3afaaac2f5ddd7269f75e615671c
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a 'Pdf.Phishing.Trojan' signature. It contains embedded URLs, one of which points to a Squarespace hosted PDF, suggesting a potential lure. Although the document body is heavily obfuscated, the presence of embedded URLs and the ClamAV signature strongly indicate a phishing or credential harvesting attempt. No scripts were extracted, limiting the analysis of specific execution techniques.

Machine Learning

  • Nyx PDF Classifier clean score 0.1658

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/rCno-htTzZk/square?utm_term=great+dane+with+owner
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e8141d1c6ee137fa130502/1625822237468/kegajulip.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60ec8fe34f2b1c51afa4b3d3/1626116067795/xetupa.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_off0000d1e1.bin
5b362292cb72fc1aa6cf3cbe8cea9766c3c6952e9946b089cf5270d8f3cea3db		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E1 10256 bytes
font_01_sfnt_off0000e8f0.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8F0 16792 bytes
font_02_sfnt_off00010102.bin
12d485d616c63bd1db74430428831b44e9eb87c8618ddf2ac86ad1485c8004f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10102 16960 bytes

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