PDF / .EXE malware analysis — malicious · bb1ce8f7f3f325a2

MALICIOUS

PDF / .EXE

6.5 KB

MD5: 5bec0ee6419980c6027c005673817788 SHA-1: 2ed97f3754d9c55035bdd93df8977930e79255a8 SHA-256: bb1ce8f7f3f325a204a50799700a6bfea2fa7b6fb7b8afe858df29f56727588b

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. A critical heuristic, CVE_2008_2992, specifically points to the use of `util.printf` which is a known indicator for this vulnerability. The `unescape()` call further suggests obfuscation of malicious JavaScript. The embedded JavaScript is likely designed to exploit this vulnerability, leading to the download and execution of a secondary payload. The ClamAV detection also confirms the malicious nature of the file.

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` `23439bb39d50fa500d9099a18f7b5ae2a4fa303e485a1d944f3c38ef37b4cace`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A7	5396 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 2 long base64-like blob(s).

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