Pdf.Dropper.Agent-7216805-0 — PDF malware analysis

Static analysis result for SHA-256 b7de768a0c02b84a…

MALICIOUS

PDF

25.8 KB Created: 2006-02-01 14:14:12 Authoring application: Wegoptyr (via HghTc6Fs)
MD5: 8dd64bbea0c43ea4d88bbc86ea1a38a1 SHA-1: 38d3cb9675eb67e2029d59b23b7371c67cb5db99 SHA-256: b7de768a0c02b84af4c5ae2b2265941ba25f8e84898d1a2241d579005a77d3bc
118 Risk Score

Malware Insights

Pdf.Dropper.Agent-7216805-0 · confidence 85%

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

The PDF file contains embedded JavaScript streams, with one heuristic firing indicating an eval() call, suggesting code execution. The ClamAV detection name 'Pdf.Dropper.Agent-7216805-0' strongly suggests its function as a dropper. The obfuscated JavaScript, indicated by the 'Script obfuscation indicators' heuristic, is likely responsible for downloading and executing a secondary payload.

Heuristics 5

  • ClamAV: Pdf.Dropper.Agent-7216805-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7216805-0
  • eval() call high PDF_EVAL
    eval() found — commonly used for obfuscated exploit execution
  • 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.
  • Suspicious extracted artifact info 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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0007_000.js
afa47d410b5acf4a13551acbbd4be946416abc01b85a7df643b78f713a867399		 pdf-javascript-stream PDF /JS object 7 at offset 0x1EE 25333 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 eval/decoder/string-building token(s).
javascript_obj0007_001.js
4f7814e2f3ed998058139f743178c535fa208268de6a3d803f444563a9741cb1		 pdf-javascript-stream PDF /JS object 7 at offset 0x1EE 25058 bytes

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