PDF malware analysis — malicious · 9471c14b1d94c56f

MALICIOUS

PDF

6.6 KB

MD5: 5aec304fb23d990b64d4c6c2c49b1678 SHA-1: eef5f96811ccba762f95902b541f5e018416755c SHA-256: 9471c14b1d94c56f3f71d530fe833a828f903e2b4d36f4ec914fd4609842bc12

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/Shell Script Execution: JavaScript T1204.002 Malicious Link: Malicious File

This PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2009_0927 heuristic suggests exploitation of a vulnerability related to Collab.getIcon. The embedded JavaScript, found in javascript_obj0006_000.js, is likely responsible for executing the exploit. The ClamAV detection further confirms its malicious nature.

Heuristics 6

Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (matched in decompressed stream)
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)
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` `80145f2f6bc0c4abbf970a00d1243b2c6d08ed5322dddb58d91e8d8d4d5e5df3`	pdf-javascript-stream	PDF /JS object 6 at offset 0x19D	5555 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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