PDF malware analysis — malicious · 2bafde124e5163e3

MALICIOUS

PDF

25.4 KB Authoring application: PyPDF2

MD5: edd62e9a789343fb3816388172f0fdc8 SHA-1: 028e82cbd6bae32260ec5f63d4ae9f6d7f8c4a68 SHA-256: 2bafde124e5163e3ae441c3f1a857de76c12ed57373bfb29f62397cd1fd387b9

114 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF contains obfuscated JavaScript, indicated by the 'PDF_JAVASCRIPT', 'PDF_JS', and 'PDF_EVAL' heuristics. The ML classifier strongly flags this PDF as malicious. The embedded JavaScript, named 'javascript_obj0004_000.js', is likely responsible for downloading and executing a second-stage payload, as suggested by the 'Script execution terms' and 'Script obfuscation indicators' in the static triage. The presence of 'eval()' further supports the dynamic execution of obfuscated code. A mailto URI was also extracted, though its relevance is unclear.

Machine Learning

Nyx PDF Classifier malicious score 0.9962

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution
Suspicious extracted artifact medium 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.
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.
External URI low PDF_URI

PDF contains an external URL action

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0004_000.js` `7b4eaf586f59353aabd1737fd333d806020a8c34b55f2065fda131976e36a25e`	pdf-javascript-stream	PDF /JS object 4 at offset 0x1DE	14479 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s). Carved artifact contains 1 eval/decoder/string-building token(s).

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