Malicious PDF — malware analysis report

Static analysis result for SHA-256 405b3eb28813725c…

MALICIOUS

PDF

75.1 KB Created: 2021-07-17 19:31:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 3b536e46a8576010e0b529f6f0cef3ec SHA-1: 7948fe7d1ff2c0c879a7eb7414e685eed7bc0b00 SHA-256: 405b3eb28813725c5f69191e4b7ca765972576ebd6ca56ae74a2b0775624c024
96 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7746

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/sq/ugae/~3/rCno-htTzZk/square?utm_term=od+three+letter+words
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60edaf195a30a704d0c1ae1f/1626189593916/what_is_data_ingestion.pdf
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f1bfed1c4ad82c2b09f7ca/1626456046310/the_meaning_of_ailment.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f0e77d133357608f390f74/1626400638072/pull_out_the_moon_lyrics.pdf
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60efd84091893d3c0393d9b4/1626331200259/gojon.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_off0000c744.bin
5cd1cb1ae9a9f715cbaa4d28b5dcc058d19753157b22e82e4170630ee574a8bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC744 16464 bytes
font_01_sfnt_off0000f1e2.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E2 16792 bytes
font_02_sfnt_off000109f9.bin
9489200bd255b7f9a47ac7e633ac19138be7e0c06685fa91dc29dda09b9fe2f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109F9 10100 bytes

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