PDF malware analysis — malicious · f0dae5de6f18b164

MALICIOUS

PDF

118.6 KB

MD5: 04049fc9fc15e7f2a86ca39e977cdc36 SHA-1: 04711411b935464d110e3b37ceb10011325fc737 SHA-256: f0dae5de6f18b164008ce2374f68d9dad810aee71609efec20863071474a99ea

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF file exhibits multiple high-severity heuristic firings related to JavaScript execution and obfuscation, including a critical ClamAV detection for 'Pdf.Exploit.Agent-36086'. The presence of embedded JavaScript, particularly a large comment-padded eval stager, strongly suggests the file is designed to execute malicious code. The obfuscated nature of the script and the 'eval()' calls indicate an attempt to hide its true functionality, likely to download and execute further malicious content.

Heuristics 7

ClamAV: Pdf.Exploit.Agent-36086 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36086
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
Large comment-padded JavaScript eval stager high PDF_JS_LARGE_COMMENT_PADDED_EVAL

PDF JavaScript contains a very large stream padded with long random-looking block comments around String.fromCharCode and eval. This is an exploit-kit obfuscation shape used to bury a decoder and recovered stage inside noise, not normal PDF form automation.
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_obj0006_000.js` `8110c320d18e4bdcb10df697e51ebd0c4f6e20eb764364b1089e7705e1ed9efd`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	627207 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s). Carved artifact contains 42 long base64-like blob(s).
`stream_001_off0001d6f2.bin` `bcf0a60086f379dbaa0b3bd6aac3002326a633a26b22f52ed29da768a22066fd`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1D6F2	300 bytes

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