PDF malware analysis — malicious · cd34ee6227cd2ced

MALICIOUS

PDF

6.7 KB

MD5: 86f3b4b6714b9398a4ebec93279c0913 SHA-1: f9109fcf06a278b4294aac51e34f486231b58d86 SHA-256: cd34ee6227cd2ced7551c51c2ecca75848dd1f8b0e1090b66463613f30ce5147

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious Link/URL

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. A critical heuristic identified the CVE-2009-0927 vulnerability (Collab.getIcon), which is commonly exploited via JavaScript in PDF documents. The presence of a JavaScript object and the ClamAV detection further support that this file is malicious. The primary attack vector appears to be exploiting this CVE to achieve arbitrary code execution, likely to download and execute a second-stage payload.

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` `d01035bc54b4ca93e4b2d2254ec6f2527bca0ad05e0573386ac94575d0240a26`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A9	5852 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 2 long base64-like blob(s).

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