PDF malware analysis — malicious · c44e274a9345e7e3

MALICIOUS

PDF

6.6 KB

MD5: 9c0f92ef8fa70b980c7ea4adfc7a0f13 SHA-1: c17935968506d45ce357033f60f187c34e68174d SHA-256: c44e274a9345e7e3448d3bf0022b2f10a4ed3c15a142f72050083a1ec5bb6725

86 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 Command and Scripting Interpreter: PowerShell T1059.003 Command and Scripting Interpreter: Windows Command Shell T1204.002 Malicious Link: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The ClamAV detection of 'Pdf.Exploit.Agent-36086' strongly suggests a known exploit within the PDF. The embedded JavaScript is likely responsible for executing the exploit, potentially leading to the download or execution of a secondary payload. Due to the obfuscated nature of the JavaScript and the lack of specific IOCs beyond the ClamAV signature, the family remains unknown.

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` `08b47d547a330d1d4f6f9c4d0a9f5bb300425e4a003434f805d4de0225e3e56d`	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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