PDF malware analysis — malicious · c9e48e7ccab79731

MALICIOUS

PDF

6.6 KB

MD5: 6640f85ea2c4c0aba7efa2100f93fe27 SHA-1: 6cd39dbd7d7c0324ec217c7b9c6fef75321d88b7 SHA-256: c9e48e7ccab79731bf8c04fe67d0f9be632762661f4c16512f5c7f87d3e84f08

238 Risk Score

Malware Insights

The PDF file contains embedded JavaScript and triggers critical heuristics related to the CVE-2009-0658 exploit, specifically targeting Adobe Reader's JBIG2Decode filter. This indicates the document is designed to exploit this vulnerability to achieve arbitrary code execution. The presence of obfuscated JavaScript further supports the malicious intent, likely for downloading and executing a second-stage payload.

Heuristics 8

Adobe Reader JBIG2Decode generic heap-spray exploit critical CVE likely CVE_2009_0658_GENERIC_SPRAY

PDF combines JBIG2Decode image streams with JavaScript heap-spray or decoder scaffolding. This is likely CVE-2009-0658-family Adobe Reader JBIG2 exploitation, but it lacks the stricter Reader-9 version gate or decoded page-word shellcode fingerprint required by the exact rule.
JBIG2 + active content high CVE related PDF_JBIG2_ACTIVE_CONTENT

JBIG2Decode appears with JavaScript/XFA/RichMedia — a related indicator for JBIG2 parser-exploit families including CVE-2021-30860 and CVE-2009-0658, but not a unique CVE fingerprint.
ClamAV: Heuristics.PDF.ObfuscatedNameObject critical CLAMAV_DETECTION

ClamAV detected this file as malware: Heuristics.PDF.ObfuscatedNameObject
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
JBIG2Decode filter medium PDF_JBIG2

JBIG2 image decoder present — historically used in zero-click exploits
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.
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_obj0006_000.js` `5ae583f580ef4d69fa0bc087ac941c0007c471b9154846669575addee1844e8d`	pdf-javascript-stream	PDF /JS object 6 at offset 0x224	5220 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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