Malicious PDF — malware analysis report

Static analysis result for SHA-256 60f00ff0a388c04d…

MALICIOUS

PDF

76.3 KB Created: 2021-07-17 12:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e29323c2eeb86dd20120efc87295bf0f SHA-1: 7c0f6b66f4e28976e606dc65a4b1cd95fbf75675 SHA-256: 60f00ff0a388c04d4f1cfee0cf80fa074e67961b56ac42e4daa0e0dd0dbed0f6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating it likely contains an exploit. The presence of embedded URLs, though marked as benign, suggests an attempt to redirect the user or download further malicious content. The file's structure and heuristic firings point towards a phishing or exploit delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8791

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/UZrB20b2Dcg/square?utm_term=things+to+do+in+middleboro+ma
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e95bd1e6bd1231e609a0f2/1625906129903/worlds_largest_polluters.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60ee8a82588fb56695189fe3/1626245763261/vukokufuwivutoba.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f0aabc6b9e38066568a9bc/1626385084754/lukizube.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f23c54d52b82025f9e98af/1626487892455/kitaxotajuditogamovi.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60e92aab92abcc18c4f6598f/1625893547577/7859688166.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_off0000cb83.bin
5086b8803bade3d12586aefbb63d006290f9d2567575c916bd1cea2dcf7025d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB83 16016 bytes
font_01_sfnt_off0000f4dd.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DD 16792 bytes
font_02_sfnt_off00010cf4.bin
f3da1717d5d84ebf08c3bd012d9f77123ef7fc118c26516cb87f2806a0b42d6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CF4 10796 bytes

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