PDF malware analysis — malicious · ccdb17b0874c3e0f

MALICIOUS

PDF

6.8 KB

MD5: 41e3434df2fbb5f0748897cdab8c9542 SHA-1: 4ab497b0bed49e31fce3fb461e56ae8cefdcbad6 SHA-256: ccdb17b0874c3e0fe091b7860da923a5d6aa19cf68acd73a4050fa6361391e9a

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious JavaScript

The PDF file contains embedded JavaScript and triggers a critical vulnerability (CVE-2009-0927) related to the Collab.getIcon method. This indicates the document is designed to exploit this flaw to execute arbitrary code. The presence of obfuscated JavaScript and a high ClamAV detection score further support this assessment. The primary attack vector appears to be leveraging the CVE-2009-0927 vulnerability to run malicious JavaScript, which is likely used 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` `9c35c41340dc0881745cb0431bdafb0ae359cce1cb4e3c8f472c3ca7d8b33caa`	pdf-javascript-stream	PDF /JS object 6 at offset 0x191	5969 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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