PDF malware analysis — malicious · a5e8322ed14cce71

MALICIOUS

PDF

7.0 KB

MD5: 62c243cb31094d22532fe5146dfce218 SHA-1: 291ed531b09ff08108e3a0e96efed548c7713945 SHA-256: a5e8322ed14cce719afb2f115b89baf1acc729f4c45e1ef6fef31642b1f3f36a

178 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. A critical CVE-2009-0927 exploit targeting Collab.getIcon was detected. The presence of obfuscated JavaScript and a detected exploit suggests the document is designed to compromise the user's system upon opening. The extracted artifact 'javascript_obj0006_000.js' likely contains the malicious script.

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` `ba76655e3d33fcb60dde8ba74d5dac9886ee1f57bc77b6016f18a3745399e4a0`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1AB	5891 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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