Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e3c6888e4edbc8d…

MALICIOUS

PDF

84.6 KB Authoring application: Aspose Pty Ltd. (via Aspose.PDF for .NET 23.4.0) First seen: 2026-06-10
MD5: 57202585907abe3b22aeb33a273f24d7 SHA-1: 6354e9071756eeaf7a53291878563bfff5309844 SHA-256: 8e3c6888e4edbc8d3ae26c92d719e875d05e87d5e088266b132b543cb313cbdc
70 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0362

Heuristics 4

  • Embedded script payload in PDF stream high PDF_EMBEDDED_SCRIPT_PAYLOAD
    PDF stream bytes contain script execution markers such as ActiveXObject/CreateObject, WScript.Shell, PowerShell, or shell-exec primitives. This is stronger than ordinary PDF JavaScript because it indicates a staged external script payload hidden in stream bytes.
  • Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic (matched inside decoded stream)
  • 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 http://www.w3.org/1999/02/22-rdf-syntax-ns# In PDF document text
    • http://www.xfa.org/schema/xci/1.0/In PDF document text
    • http://www.xfa.org/schema/xfa-template/3.3/In PDF document text
    • http://www.xfa.org/schema/xfa-data/1.0/In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00000519.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x519 1249 bytes
SHA-256: bfd4ebbc457a8e37a079f6fd1bca8198d52fbc9a6136b07800772c5ee58361ef
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 3 shell/COM execution token(s).
stream_003_off000007ca.js decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7CA 658 bytes
SHA-256: 1ea4c85e235fa5beccc34652317477b45392bc9a9f95fafd3fc1f6da238fa571
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 eval/decoder/string-building token(s).
stream_004_off000009a9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9A9 129 bytes
SHA-256: 5545f8b5f89e54e1a24d2ae1350106cd79ad207c0945c87de5737df3bd7ed837
font_00_sfnt_off000015cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CF 260668 bytes
SHA-256: 8b49998bd90a8d627dcb59761f7ded6ecfed0dbc5f13773c0a34ed4ce6a269ac

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