PDF malware analysis — malicious · 7f6dc5fb5cc134c1

MALICIOUS

PDF

15.7 KB

MD5: 23f530f2f278da6202097eabb79424f3 SHA-1: 6eebc5363fb2c66afe9d7d577bf1b11372278cb1 SHA-256: 7f6dc5fb5cc134c1530bcd17bbcffc37944ee1ba3fe78046836912566842dce9

166 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.007 JavaScript

The PDF contains embedded JavaScript, including a high-severity 'eval()' call and a 'Large comment-padded JavaScript eval stager'. ClamAV identified this as 'Pdf.Exploit.Agent-36086', indicating it's a known exploit. The JavaScript is likely responsible for downloading and executing a second-stage payload.

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` `7d8201a9f307f9dc9749d7faa1fe98c9b2a2b127aacffdb365ae0ffdc41de474`	pdf-javascript-stream	PDF /JS object 6 at offset 0x143	424944 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_off00003b7a.bin` `2fa3f57cf29a31c34eb7fccf49249ac4110820412ad1c2bd84987e819792c392`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3B7A	300 bytes

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