PDF malware analysis — malicious · bad16d19022219c7

MALICIOUS

PDF

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

MD5: e1edf7899b891935546fc55df735a7db SHA-1: 49b6be61a550cb1c656179062c1a074148fb2b7b SHA-256: bad16d19022219c76401a73ad91f4b92b852e277f64749b1ecc298d0363ff9c9

150 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

This PDF file was flagged as malicious by multiple heuristics, including a critical ClamAV detection for Pdf.Dropper.Agent-7217014-0. The presence of embedded JavaScript streams, particularly those containing eval() calls and obfuscated code, strongly suggests an attempt to download and execute a secondary payload. The ML classifier output of 0.999996 further supports the malicious nature of the file. The extracted JavaScript artifacts, javascript_obj0013_000.js and javascript_obj0013_001.js, are the primary indicators of this malicious behavior.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

ClamAV: Pdf.Dropper.Agent-7217014-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7217014-0
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.

Filename	Kind	Source	Size
`javascript_obj0013_000.js` `311b2345a660666348450a61ff221aa273edb590d79663f2a9ef80dfb3689cc4`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	9252 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0013_001.js` `a53bbef18c7e354520ef1bb348bbc5de194bf8d325ad80c80c098b06e5ef8071`	pdf-javascript-stream	PDF /JS object 13 at offset 0x358	9958 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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