PDF malware analysis — malicious · bbc417868a68f7bc

MALICIOUS

PDF

14.6 KB Created: 2008-07-26 19:43:58 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 4973ca511e133958c8214964eeeea4e3 SHA-1: dfdc54d507108fd4e2342fa935ed95a16e6f90ef SHA-256: bbc417868a68f7bc766fed5751cbb96034eb6dd9203109f89f3b3c9379d2c68d

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that utilizes eval() for code execution, a common technique for obfuscating malicious payloads. The ClamAV detection 'Pdf.Exploit.Agent-36118' strongly indicates a known exploit. The JavaScript appears to be designed to download and execute a second-stage payload, though the exact nature of the payload is not fully discernible due to obfuscation. The file's metadata indicates it was authored using Scribus.

Heuristics 5

ClamAV: Pdf.Exploit.Agent-36118 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36118
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
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.
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_obj0013_000.js` `44316b22fb24bbad8c1fb8e6d2653a655f15b04fbc28d7a130c86442744fd367`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13420 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 13 long base64-like blob(s).

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