PDF malware analysis — malicious · 3702d3c55acf963e

MALICIOUS

PDF

4.3 KB

MD5: 6509493afeff628b530fe2392c4a6cc4 SHA-1: 2c0d1212ba1e3032b244edc356f9e16befb7546b SHA-256: 3702d3c55acf963e4d5b1d88e63214595f8099bc77935a86450428caef1d4157

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_EVAL and PDF_FROMCHARCODE firings, along with the 'Script obfuscation indicators' from static triage, suggest that the JavaScript is intentionally obfuscated. This obfuscation is commonly used to hide the execution of malicious actions, such as downloading and executing further stages of malware. No specific family could be identified due to the obfuscation.

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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj5170_000.js` `8ba276afab490a6aceb49721e4b337356b33ec7039694b94a94458d08ea3b8cf`	pdf-javascript-stream	PDF /JS object 5170 at offset 0x136	8318 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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