Malicious PDF — malware analysis report

Static analysis result for SHA-256 9749d609faac0ae8…

MALICIOUS

PDF

105.0 KB Created: 2021-07-20 15:54:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 8005b57710ffc59ff04f1ee7ac52fb64 SHA-1: 0e200e92fb15b5074330d1d0485f04c5f742a29e SHA-256: 9749d609faac0ae885a0afb78245983f2eb9e0912a507348531bd9c25f113450
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ML classifiers and ClamAV. It contains embedded URLs that likely lead to phishing content or further malicious downloads. The PDF structure and embedded objects suggest an attempt to exploit PDF viewers or deliver malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7738

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/u8n3KCQdUYc/square?utm_term=indelible+meaning+in+tamil
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8c713e534972f7b7a1057/1625868051611/padejameko.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f5feff1a70a35a7b2b4cb2/1626734335800/wepabobisomowabid.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f3b9d604a1d97017a011c9/1626585558387/59530965540.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f4d820d9389f5e809fb388/1626658848821/easy_fingerstyle_guitar_tabs_for_beginners.pdf
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e7722f63e952391ed392ed/1625780783854/5323766643.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_off00013c12.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13C12 16792 bytes
font_01_sfnt_off00015424.bin
909ab5e20a1d7a9df6246b11bc92ae4603018ab0ce66a268c9c8d848a8f2fee9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15424 16628 bytes
font_02_sfnt_off00017fbf.bin
1652dce2eb103f0349f3abc38ec397992a3ff181789698d97835d13b5f693e04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17FBF 10292 bytes

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