PDF malware analysis — malicious · 3a099b177185b7de

MALICIOUS

PDF

27.1 KB Created: 2010-03-12 04:18:54 Authoring application: hu5fYgMbL (via t46ZFvyDXnJC3b)

MD5: 668823d64b60fb8be6b2e247d5a7bf92 SHA-1: d6cb6ae89776e2b65bac1c45e4119b58024af461 SHA-256: 3a099b177185b7de1e6416f67e8cbbc72c92ab7dca4705cd1002be2606fa94a4

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and multiple PDF-specific heuristics, including PDF_EVAL and PDF_JAVASCRIPT, indicate a malicious PDF. The embedded JavaScript stream, identified as 'javascript_obj0007_000.js', likely contains obfuscated code that uses eval() to execute arbitrary commands. This is consistent with exploiting a PDF vulnerability to download and execute a second-stage payload.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-15410 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-15410
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape 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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `f8bf8108f137fab4db9ea197fd561ac2878c486cac3d790e99c39b3180055807`	pdf-javascript-stream	PDF /JS object 7 at offset 0x23D	26577 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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