PDF malware analysis — malicious · fdd0422b855d7d76

MALICIOUS

PDF

14.6 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 37a4fa2bfeee92b656542104b3fca5e5 SHA-1: db6f747f4fbd6fcfbb5ea5d2ce07584c948b51a8 SHA-256: fdd0422b855d7d7694bb32050e06431a7a03293372fc03d88965be3db147e7e8

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple 'eval' calls, indicating obfuscated code execution. Heuristics confirm JavaScript actions and 'eval' usage, and a machine learning classifier flagged it as highly malicious. ClamAV detection as 'Pdf.Exploit.Agent-36118' further supports its malicious nature. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, a common technique for exploiting PDF vulnerabilities.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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.

Filename	Kind	Source	Size
`javascript_obj0013_000.js` `9c4a0065859bfba1f0b29e1f832d002a178589e465b8d9c0815e3966e66d8dcd`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13434 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`javascript_obj0013_001.js` `b3d0dc592345c6bbc838d14c9473b58d69143774d988ff0fc7245d02913c5f25`	pdf-javascript-stream	PDF /JS object 13 at offset 0x359	14140 bytes
Detection ClamAV: Pdf.Exploit.Agent-36118 Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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