Malicious PDF — malware analysis report

Static analysis result for SHA-256 92c6cd706f7f8c34…

MALICIOUS

PDF

85.1 KB Created: 2021-07-19 07:14:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: c81a89731b535bb04065fa1430c2e40b SHA-1: a854b6976cf22cd4021a7307a4450ff3608f006f SHA-256: 92c6cd706f7f8c344b798e2cba0a7652843b83fb9aaf833f4191234fcaa89882
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing attempt. The presence of embedded URLs, though some are marked benign, suggests the document is intended to redirect users to external sites. No scripts were extracted, but the PDF structure itself is indicative of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6393

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/~3/4aHNpQc2m6I/square?utm_term=god+blessed+me+with+a+wonderful+man
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60eddd839942ff19c76759d4/1626201475254/95649942350.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e879ebf1a832182326716f/1625848299438/71838624643.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f1ce4986f4275401648125/1626459721863/on_eagles_wings_shane_and_shane.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f3722c54c26a0cc3fd7cc6/1626567212515/download_last_10_years_cbse_10th_board_papers.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60edeb3ff6d8087912bfd553/1626204991117/pirevalelipilakorexupemu.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f0640f3ab9101ab6a6bd3c/1626366991236/satilaz.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2ee.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EE 16792 bytes
font_01_sfnt_off0000fb05.bin
9c0cb36c182e7d159ee1e7ca33406ebedc2e787f6905ad64c3caf44dedc82bee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB05 10984 bytes
font_02_sfnt_off0001145c.bin
ec147ba4f121c6266d6bbe66bfe7a4d20e1f4d07c80cf5490bfdb13ff158872d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1145C 16776 bytes
font_03_sfnt_off00013fde.bin
6df00093d1a1fd8b8f95901b42ba2863538c90606311dd4adf1993a433792d13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13FDE 1692 bytes

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