PDF malware analysis — malicious · 9f527ce77db1f513

MALICIOUS

PDF

6.9 KB

MD5: 8d62a979d4952cdc764e8c62ab59f6ce SHA-1: b6e7cd24a3ba90aa4b484ed1846a895b01ba69c7 SHA-256: 9f527ce77db1f513b54a3113d6a95d8bb1e90facc7389b2ed95419d67b936fa6

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF sample contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2009_0927 heuristic firing suggests exploitation of a known vulnerability in PDF viewers. The unescape() call further points to obfuscated JavaScript intended to download and execute a malicious payload. The extracted artifact 'javascript_obj0006_000.js' likely contains this 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: Pdf.Exploit.Agent-23680 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-23680
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` `aa572ec42a70cbbc1bd324d23d7b8bfbde32344eccaaec345b5aa32d6fa9f4e0`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A7	5777 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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