PDF malware analysis — malicious · d3feb06185803e5b

MALICIOUS

PDF

6.3 KB

MD5: 80c7c83f91760138b76fcbdf9e1b1f12 SHA-1: 423607fc41103cd4610048d20db3b71221ef134e SHA-256: d3feb06185803e5bd567bc81f2e43a82776e63408cc1ff161d6c33f6f30726e8

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2008_2992 heuristic firing suggests exploitation of a vulnerability related to util.printf. The presence of an unescaped string and obfuscated content further supports malicious intent. The primary function of the embedded JavaScript appears to be the exploitation of this vulnerability, likely to download and execute a secondary payload.

Heuristics 6

util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (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` `479bbcd16ecf288cd256ab258732fb65815fafba1e3ec4bd5517cf552ef9d61b`	pdf-javascript-stream	PDF /JS object 6 at offset 0x18D	5517 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

Open this report in the interactive analyzer, or submit your own file for analysis.