PDF malware analysis — malicious · dd670c35acda569c

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: 58051f1eb34aa533aca60a8a8f2bab8d SHA-1: 7c567feac4cc5b636502fafb9296578c6427bcb6 SHA-256: dd670c35acda569c85ce34278dc636f8b9c0fd93f882c057b0409f7da6278698

118 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF file contains embedded JavaScript with multiple obfuscation layers, including the use of `eval()` and string concatenation. Heuristics indicate a PDF JavaScript action and an embedded JS stream, with a critical ClamAV detection for 'Pdf.Exploit.Agent-36118'. The script's intent appears to be downloading and executing a second-stage payload, as suggested by the `eval()` calls and the embedded JavaScript object. The obfuscated nature of the script and the lack of specific indicators prevent definitive family attribution.

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` `b4859270478e7700eb0bce6255e6bbb788356c0d177b0fdfe31e4c63c72880ee`	pdf-javascript-stream	PDF /JS object 13 at offset 0x336	13412 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 5 long base64-like blob(s).

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