PDF malware analysis — malicious · ea5c42ab0282fc28

MALICIOUS

PDF

2.7 KB Created: 7190-01-01 Authoring application: 7287

MD5: b2961ccd7819456a1f020a55f87b0838 SHA-1: 9c9b4e4c83132884c955358307d238bfb82d0c8b SHA-256: ea5c42ab0282fc286b12891ee6d575744e6bdf846fbf06441b495932a257f0a8

126 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file was flagged as malicious by multiple engines, including ClamAV and an ML classifier. Heuristics indicate the presence of JavaScript with obfuscation, suggesting it's used to exploit a vulnerability. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as indicated by the 'Suspicious extracted artifact' heuristic. The file's SHA256 hash is provided as a primary IOC.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

ClamAV: Pdf.Exploit.Agent-36014 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36014
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `754694187fa6d31557956687ebdfc0756f433be1e0d4096917ab988ed58f7b6a`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4771 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 10 eval/decoder/string-building token(s). Carved artifact contains 3 long hex-escaped blob(s).

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