Malicious PDF — malware analysis report

Static analysis result for SHA-256 daded87465ca066f…

MALICIOUS

PDF

257.6 KB Created: 2021-07-12 21:49:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 40b16e4ec607f05ac3d26e0d3ef342c8 SHA-1: 87ea1c6e46e893b9860c2d3822f04bfec440d794 SHA-256: daded87465ca066fd16eddc19a35f802ab21c41441cf80d765eaa9c4e391605f
106 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a 'Pdf.Phishing.Trojan' signature. The presence of a 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely contains instructions for a password-protected archive, a common tactic to evade gateway scanning. While no executable scripts were extracted, the PDF structure contains embedded URLs, one of which is a Google feedproxy URL that could potentially lead to a malicious payload. The PDF also contains embedded JavaScript, suggesting an attempt to execute malicious code.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3411

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/AnJPYMJXbyQ/square?utm_term=taare+by+aatish+song+download
    • https://static1.squarespace.com/static/60aac4dd19f082755c4e5c69/t/60e9654637cb90447561f2a4/1625908550322/personal_exemption_worksheet.pdf
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60e767d3d915e46dbd716549/1625778131276/zidesidawed.pdf
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60e90ebf2210ba6bce116b24/1625886399262/sudagatepojorada.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_off00039681.bin
e7f4bd5166d235d27bf650679020cd53bb3de6bfae25333ad8f4fc4d4b699d5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x39681 19828 bytes
font_01_sfnt_off0003c932.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3C932 16792 bytes
font_02_sfnt_off0003e149.bin
ae4aa9f82cedaa9a2801544ec502cc3cc169369f8378e0aeb458c0bb180f5b85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E149 10832 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.