PDF malware analysis — malicious · 96ccc41d463fd5e6

MALICIOUS

PDF

3.8 KB

MD5: b38e5a66848d04a80f9cd59d89e4cdee SHA-1: 6eb792cf095384199d52da3727f198d9b35bb205 SHA-256: 96ccc41d463fd5e6977cae1a9f2c95794aaa341e90ebb206b2cdd5e5252545e9

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript streams, with one stream exhibiting high-confidence indicators of malicious activity due to the use of eval() and String.fromCharCode. These obfuscated scripts are likely designed to download and execute a second-stage payload from a remote source. The presence of multiple JavaScript objects suggests a multi-stage infection process.

Heuristics 5

eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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_obj111711_000.js` `be5d31b019b0807bd331434adf37e64484346da1940344034d76e4ef8c5a1aa4`	pdf-javascript-stream	PDF /JS object 111711 at offset 0x197	370 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj111712_001.js` `3857e14e37900d0074387eb21cebaadad441e680fb1e1ee11a0075db3bb551c7`	pdf-javascript-stream	PDF /JS object 111712 at offset 0x246	5130 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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