PDF malware analysis — malicious · 96fa88335c11785e

MALICIOUS

PDF

124.3 KB

MD5: 95402a40aad8b7b597238568996d2e46 SHA-1: f7cbe36ff168061f48cf5051212da9a9239b3208 SHA-256: 96fa88335c11785e502ca80271149258d33773939d76d40ecf0195f3bafc5bf0

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript that utilizes the `unescape()` function and targets the `Collab.getIcon` method, indicating exploitation of CVE-2009-0927. This vulnerability allows for arbitrary code execution when a user opens the malicious PDF. The embedded JavaScript streams are large and appear obfuscated, suggesting they are designed 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.
ClamAV: Pdf.Exploit.CVE_2009_0927-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.CVE_2009_0927-1
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS 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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0007_000.js` `7680c7864187b3c3cf845cd21d1b39761ed3e948adcb7dd8470c3ba2660e0587`	pdf-javascript-stream	PDF /JS object 7 at offset 0x297	126353 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 5 eval/decoder/string-building token(s).
`javascript_obj0007_001.js` `3cd7a52f456af026bc14b9c73fbe3a0d6a25049fb987313a3644c298d9c20331`	pdf-javascript-stream	PDF /JS object 7 at offset 0x297	124446 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).

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