PDF malware analysis — malicious · 41c6e4be051119a9

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: 7609bb155514e4e2945dd3dfa5c5fd25 SHA-1: 7c8cf35abaf1beadac6d5dd28da04d8e098f4702 SHA-256: 41c6e4be051119a99bd20a721f5c7413306497a275b1116f0492857375656d9a

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript with multiple obfuscation techniques, including string concatenation and the use of eval(). The critical ClamAV detection and PDF heuristics indicate a known exploit (Pdf.Exploit.Agent-36118). The JavaScript's eval() call is highly suspicious and likely responsible for downloading and executing a secondary payload, as suggested by the 'eval(tts' string found in the document body.

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` `44cb1ecdba92c0e93410437dfec5b517c3ae32ed15178ce5869a7368f540a723`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13360 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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