Pdf.Dropper.Agent-7216762-0 — PDF malware analysis

Static analysis result for SHA-256 b6f97de87793685e…

MALICIOUS

PDF

2.4 KB
MD5: 3a776a44341d71a5dd679f37e16d9440 SHA-1: 4404802283f21ab1ef3484bcf7e428eb0b19fba7 SHA-256: b6f97de87793685e32daab8387aae712056be322261064fbdeb6c92bb186d44a
176 Risk Score

Malware Insights

Pdf.Dropper.Agent-7216762-0 · confidence 95%

MITRE ATT&CK
T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The JavaScript stream utilizes eval() and unescape() functions, suggesting obfuscation and dynamic code execution. The critical ClamAV detection of 'Pdf.Dropper.Agent-7216762-0' strongly suggests this is a dropper designed to download and execute a secondary payload. The extracted JavaScript file, 'javascript_obj0009_000.js', likely contains the malicious code responsible for this action.

Heuristics 6

  • ClamAV: Pdf.Dropper.Agent-7216762-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7216762-0
  • eval() call high PDF_EVAL
    eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
  • unescape() call high PDF_UNESCAPE
    unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
  • 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.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0009_000.js
0a3c75fbc3ec4629327b8fb63f53ff7700ff6fa302ed2fa7214ee36350f81a7d		 pdf-javascript-stream PDF /JS object 9 at offset 0xEF 7945 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 5 eval/decoder/string-building token(s). Carved artifact contains 18 long hex-escaped blob(s).

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