PDF malware analysis — malicious · f2380abc29551cf2

MALICIOUS

PDF

4.3 KB

MD5: 47e0290e982dbd036f3ec81214c77784 SHA-1: e45eb677f8018dd0cb2cc80a7dffd43ec76b67d0 SHA-256: f2380abc29551cf2468a9c8317825de6d462288bca1cc723d312b3db8d9ade1b

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The PDF_EVAL heuristic firing suggests that the JavaScript code is being executed using eval(), and the PDF_FROMCHARCODE heuristic indicates obfuscation techniques are in use. The extracted JavaScript file, 'javascript_obj782956_000.js', is flagged for script obfuscation. This combination strongly suggests the script's purpose is to download and execute a second-stage payload, a common technique for initial access.

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_obj782956_000.js` `fd0b9881b8d81b584cbc1aeb9347362c79c6c88295b102ecf2f6c9c6d1275bde`	pdf-javascript-stream	PDF /JS object 782956 at offset 0x137	8312 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).

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