PDF malware analysis — malicious · 268828315b0c5c45

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: 4f7beb7d397e78f48ccb46b554c15c0c SHA-1: cf4577c074770bfe85e534eacb5804719e8359f6 SHA-256: 268828315b0c5c457e952219e66cd1e1aea0a0c7ffb0f4507d0f7066db871702

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple eval() calls, indicating obfuscated code execution. The ClamAV detection 'Pdf.Exploit.Agent-36118' and the heuristic firing for 'PDF_EVAL' strongly suggest the exploitation of a PDF vulnerability to run malicious scripts. The script's purpose is to download and execute a second-stage payload, as indicated by the use of eval() on concatenated strings that likely form a URL or command. The document body itself contains obfuscated JavaScript, further supporting this attack pattern.

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` `f89d091d41d63507eb6cd479f1d1ee2005274a2b5d58e8b734a5002c0db797b9`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13338 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 4 long base64-like blob(s).

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