PDF malware analysis — malicious · 24d4830e47986ecd

MALICIOUS

PDF

4.1 KB

MD5: 8bef1c78a3ed3647b6a13cb563730c34 SHA-1: d9c347d868641701c6a60db97e902885ec0a4740 SHA-256: 24d4830e47986ecde1e58066e9c49aea705b8b5c4bd76dd64244494f0c300a0d

66 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1027 Obfuscated Files or Information

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The presence of PDF_EVAL and PDF_FROMCHARCODE firings, along with the 'Suspicious extracted artifact' triage, points to obfuscated JavaScript code within the streams. The extracted JavaScript files, 'acroform_b64_00.js' and 'javascript_obj0013_001.js', are likely responsible for executing malicious actions. The obfuscation suggests an attempt to hide the true payload, which is probably a downloader or dropper.

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_obj0013_001.js` `bbeddaa7b1cc48882a44a4cbe3ab35c27fbb13b013c80363bb9b6a47f1cc63e2`	pdf-javascript-stream	PDF /JS object 13 at offset 0x368	6345 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`acroform_b64_00.js` `420cc3ae95b0ca5894e66ca2ab85d216d62689f378796855df535186097b0f7e`	deobfuscated-js	PDF AcroForm base64 (decompressed) at offset 0x99D	3606 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 2 long base64-like blob(s).

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