PDF malware analysis — malicious · f3e867efbdfed1d3

MALICIOUS

PDF

25.8 KB Created: 2006-02-01 14:14:12 Authoring application: Wegoptyr (via HghTc6Fs)

MD5: f1532095dd25c47fc71d6d2ac6c24414 SHA-1: 957b62a4ba768f21a04e3b32022cabd9505dffa6 SHA-256: f3e867efbdfed1d3882f69fe09d26df4f076a439e8e5017116d203dde2691a00

88 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript streams, with heuristic firings indicating the use of eval() and general JavaScript execution. The ML classifier strongly flags this PDF as malicious. The embedded JavaScript is likely responsible for downloading and executing a second-stage payload, as suggested by the presence of obfuscated script content and the general nature of such PDF-based attacks. No specific family could be identified due to the generic nature of the attack.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `56b40a0ff20c5399a361a4c28e157cb478e67ec52ee706178023ea20fca84730`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1EE	25260 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `8188e62b826eab10837e29b5d32965847aa6e4517cd6b2afea92a99aa8c2ba23`	pdf-javascript-stream	PDF /JS object 7 at offset 0x1EE	25021 bytes

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