Malicious PDF — malware analysis report

Static analysis result for SHA-256 202ba08a45c72eb7…

MALICIOUS

PDF

78.5 KB Created: 2021-07-16 21:47:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: eb67e4794d398deb410bc716d45ec6d7 SHA-1: 97beb14b89734f472524a1a79d74f391b66e2bfe SHA-256: 202ba08a45c72eb7ce470a2427d61d7a5901b1acf76c9db917a67b810ed3ec75
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains an embedded URL that points to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF as malicious. The presence of an external URI and the overall malicious verdict strongly suggest a phishing attempt designed to redirect users to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8755

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://drafthe.ru/square?utm_term=village+with+diamonds+seed
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e86010c66c492f81b1bc25/1625841680295/file_converter_powerpoint_to.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f075e340a5bc6c0f760318/1626371555800/where_can_i_watch_footloose_2011.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60ee7ac627fa864c7d1523bf/1626241734342/zukurewofulut.pdf
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60f12b7edb86a67d8582a38d/1626418046393/69500539597.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60edf8947979814f85ab058c/1626208404487/sazerenobeb.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f042ccd77757041657879f/1626358476400/sokepunebolezibafu.pdf
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f11524adf71e7547cc5a5d/1626412324410/sable_merle_collie.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_off0000d329.bin
f1b3b5c5ad1ee8e880173b6c4d2c22c3e346d8f099ddb40853db201595750c08		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD329 16436 bytes
font_01_sfnt_off0000fdff.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDFF 16792 bytes
font_02_sfnt_off00011616.bin
9268144ca5d0c7e1305cfa0c10e9a19de1a2798a4af7df023aa2024a6440d946		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11616 10652 bytes

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