PDF malware analysis — malicious · c68d3960c3a2cc02

MALICIOUS

PDF

118.3 KB

MD5: 87c841c0006cf4f225625efc34bd7c3f SHA-1: ff6e92a325caeeee1af2f80d55751d34ab1c1786 SHA-256: c68d3960c3a2cc02151321040fca38951b3f855008a8fdf32969d0bffabec099

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious Link

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT, PDF_JS, and PDF_EVAL. A critical ClamAV detection of 'Pdf.Exploit.Agent-36086' strongly suggests this is a known exploit. The presence of a large comment-padded JavaScript eval stager further points to obfuscated malicious code execution. The document body was unreadable, but the technical indicators are sufficient to infer a malicious exploit attempt.

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` `e351e99eb7704ea5c18a97c3c0416defc735483fda19161926a65257f5b904de`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	627441 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_002_off0001d77d.bin` `7e615d3e1b99454dc87cbcd99b001ce8d604b49e7e7c976b181b27fdb4914671`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x1D77D	200 bytes

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