PDF malware analysis — malicious · 51e85ceb53d06466

MALICIOUS

PDF

2.7 KB Created: 9814-01-01 Authoring application: 4678

MD5: aec233960d945d643dc73f2e23e4c409 SHA-1: 224522d6be3aaa3d34f2f57a5a105b9729165947 SHA-256: 51e85ceb53d06466c6f7aefce6b35ffeef2c3c3a73052a87448a264944c89ccc

96 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. ClamAV also detected it as Pdf.Exploit.Agent-36014. The embedded JavaScript, named javascript_obj0013_001.js, is flagged for suspicious obfuscation, suggesting it likely attempts to download and execute a second-stage payload. The exact nature of the exploit and payload is not fully discernible due to obfuscation, leading to a slightly reduced confidence.

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` `73ebbc63c65ebd93674167c94b9f283c824fb4aeb201da557266d2a369088738`	pdf-javascript-stream	PDF /JS object 13 at offset 0x328	4758 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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