PDF malware analysis — malicious · dc68187d1d3a320a

MALICIOUS

PDF

12.6 KB Created: 2008-08-06 01:42:27 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: c79d00f79daabf5bdf0c6f72e54e4cd9 SHA-1: 15f6e8d271fc0a74562907f288247f418a266460 SHA-256: dc68187d1d3a320a7a91a3371d2b51f4e09e22290b5f2d459562b7bad6430ce8

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file was flagged as malicious by an ML classifier and contains embedded JavaScript streams. High-severity heuristics indicate the presence of JavaScript actions and an unescape() call, suggesting obfuscation. The embedded JavaScript files, javascript_obj0012_001.js and javascript_obj0012_002.js, are likely responsible for downloading and executing a second-stage payload. The exact nature of the payload cannot be determined due to obfuscation.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0012_001.js` `d331b836a493fc4809ca66f721b52e41b01590682b3635c2e3528299d63c1d64`	pdf-javascript-stream	PDF /JS object 12 at offset 0x36F	11268 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).
`javascript_obj0012_002.js` `407008d772a2adafd3a91ad706203c7d9ab0bcfd3c52a5866a9f70ddce8060de`	pdf-javascript-stream	PDF /JS object 12 at offset 0x397	12009 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).

Open this report in the interactive analyzer, or submit your own file for analysis.