PDF malware analysis — malicious · 4da6743f660e31ae

MALICIOUS

PDF

225.8 KB

MD5: 865974e327a5d1d14549b6dbeff1a7d9 SHA-1: 1c40666dde3b77f9d36d7d4b5dc0a0c28ec03d01 SHA-256: 4da6743f660e31ae9014ae3044804d46c071f3c260af5dc01e1354c71cb7d10e

126 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF contains embedded JavaScript, which is a common technique for exploiting vulnerabilities in PDF readers. The presence of `eval()` and `String.fromCharCode()` calls within the JavaScript stream indicates obfuscation and dynamic code execution. ClamAV detection of 'Pdf.Exploit.Agent-36086' further confirms its malicious nature. The primary attack vector appears to be the execution of this JavaScript, likely to download and execute a secondary payload.

Heuristics 6

ClamAV: Pdf.Exploit.Agent-36086 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36086
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. (matched inside decoded stream)
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_obj0006_000.js` `60b82775b4cec6008cc443049e5043709e1f6e8f91f4c3f2b9a520c1c777933a`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	322002 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 10 long base64-like blob(s).

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