PDF malware analysis — malicious · 87016f01622344ce

MALICIOUS

PDF

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

MD5: a703d5d9a6014af0e12da0fd1368582d SHA-1: 87ba759989d7d79d185f8d51408908306abde3fd SHA-256: 87016f01622344ce9632f57b6b98990db62480bb9dcc8b2af5aeca37f2ae5e4d

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple obfuscation layers, including the use of eval() and string concatenation. The ClamAV detection 'Pdf.Exploit.Agent-36118' and the 'PDF_JAVASCRIPT', 'PDF_JS', and 'PDF_EVAL' heuristics indicate the presence of malicious JavaScript code. This script is designed to execute arbitrary code, likely downloading and executing a secondary payload, which is a common technique for initial access and further system compromise.

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` `1e4e6cf65357c7a2aa267f5ff811f02dd884a1500184fbeed397e99239b61f8c`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13133 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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