Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ec3977e55c25d1…

MALICIOUS

PDF

74.3 KB Created: 2021-07-14 00:16:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: f6b0249615b4956f964c46c23731b47a SHA-1: f94364be2355ea55089db0b540165cff107ab7ae SHA-256: 96ec3977e55c25d12036f01ba8c37ddaaf714d62611d827c5845d89a0f85364f
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs, one of which is flagged as potentially malicious, suggesting a phishing or credential harvesting attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with techniques used to deliver malicious content or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7056

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/CHqDoFjlE84/square?utm_term=double+start+square+thread
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60edd66fa0f2ca3483d1247a/1626199663405/falling_asleep_with_a_concussion.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60e769ed8bfe59303b3f5f12/1625778669902/2413182393.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ec8800d0153e73bf8c5336/1626114048666/32506833885.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60e937133f195e1e403705cf/1625896723249/92376194784.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_off0000c19d.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC19D 16792 bytes
font_01_sfnt_off0000d9af.bin
644ab71ee72dd4deb30b2a5c82f755853d1993e8a15aa3b2355dab077e18c175		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD9AF 16796 bytes
font_02_sfnt_off00010582.bin
ca4285c2286e86ae6f07e0fd2dd86950a9b5d4585483082b00caaabebe3b2450		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10582 10536 bytes

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