Pdf.Dropper.Agent-7226025-0 — PDF malware analysis

Static analysis result for SHA-256 08b8308929a0c00f…

MALICIOUS

PDF

37.8 KB Created: 2010-04-16 01:17:54 +04:00 Authoring application: TCPDF (via TCPDF 4.8.032 (http://www.tcpdf.org))
MD5: edc8b559f9aeca59d0cc3f3a61665e74 SHA-1: b5d1ccb7b0dca6a9e1f59324efe907f4315ed889 SHA-256: 08b8308929a0c00f061e2d3580d5a32adb08fb516e9c3ef3a1589bd167eb9a68
114 Risk Score

Malware Insights

Pdf.Dropper.Agent-7226025-0 · confidence 95%

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript which is obfuscated but appears to be designed to download and execute a second-stage payload. The script reconstructs a string that is then passed to a JavaScript eval function, indicating dynamic code execution. The ClamAV detection name 'Pdf.Dropper.Agent-7226025-0' strongly suggests its dropper functionality.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7226025-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7226025-0
  • 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.
  • Optional Content Group with action trigger low PDF_OPTIONAL_CONTENT
    Optional Content Group (layer) co-occurs with an action trigger — content can be selectively hidden from viewers or scanners while the action still fires on open

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
javascript_obj0010_000.js
97d31be22db68b439fbf0b95c052ab5639ffa19666501da2f3f780f73a438e3e		 pdf-javascript-stream PDF /JS object 10 at offset 0x8CDF 1346 bytes

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