PDF malware analysis — malicious · c2d11c53abf9f4f2

MALICIOUS

PDF

6.6 KB

MD5: b5bea24e619ef7c32676a66a42724813 SHA-1: e514f622a080d68581e81faa0fd7f66f2ca70a16 SHA-256: c2d11c53abf9f4f22c681fb38509b702663221e793a7152de03c2a014c0d5319

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ClamAV detection 'Pdf.Exploit.Agent-36086' strongly suggests a known exploit. The embedded JavaScript file, 'javascript_obj0006_000.js', is the primary artifact, and its presence points to an attack pattern involving the execution of malicious code. The exact behavior of the script is not fully detailed, but its presence within an exploit-carrying PDF is highly suspicious and likely involves downloading and executing a secondary payload.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36086 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36086
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` `aaa5018163468a3a2502c5a97ac9dfdff2674cb9d1d87dcb02b505be60b4aa86`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	137519 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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