Malicious PDF — malware analysis report

Static analysis result for SHA-256 47984b31b320b58c…

MALICIOUS

PDF

76.4 KB Created: 2021-07-16 06:15:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: a475b95e7d7b9a66c368018da4109271 SHA-1: 7671002f1cffd783c9e6d153080f23a01aeb38aa SHA-256: 47984b31b320b58cb01bfbf0da785a7607426b90af51118128fdebf2d9aa2853
66 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The ClamAV heuristic identified this PDF as 'Pdf.Phishing.Trojan', indicating a malicious intent. The presence of embedded URLs, although many are marked as benign, suggests a potential redirection mechanism. The file's metadata indicates it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. No scripts were extracted, but the overall structure and heuristic firings point towards a phishing or trojan delivery attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.2489

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/~3/7R6buoffwiA/square?utm_term=skin+imperfections+types PDF link annotation
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ee00af9942ff19c76afa32/1626210479767/audio_rosary_tuesday_with_music.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60f07d75e1e5f345c8e17ee8/1626373493322/65479247150.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000caec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAEC 10716 bytes
SHA-256: 08e26b255fca56722ff8c4be88e045e58dc57a5df49244da3e3fecf4506794f8
font_01_sfnt_off0000e385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE385 16580 bytes
SHA-256: 363c3d6cd4afa9e9a20ff7d2d845267433ff304f3571a32becc97d518a19f999
font_02_sfnt_off00010e1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E1F 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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