PDF malware analysis — malicious · 482a9c053b21b16f

MALICIOUS

PDF

6.7 KB

MD5: 30b26d96064846c1727b4a37a7ff82a0 SHA-1: 675f3b7b7f570e833a12f8a62cf080a21e1e948b SHA-256: 482a9c053b21b16f96dcce40c45bfe4d530997119c4abb5151d1a48ecb8606b7

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. The critical CVE_2008_2992 heuristic firing suggests the exploitation of a known vulnerability in PDF readers. The unescape() call and obfuscated nature of the embedded JavaScript (PDF_UNESCAPE, CLAMAV_DETECTION) point towards an attempt to hide malicious code. The primary intent appears to be the execution of this script, likely to download and execute a secondary payload, as suggested by the extracted javascript_obj0006_000.js artifact.

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` `67bfafe7e7a311a237f80e6cf02194f3c57ba1a06a3607a141ddd37a52249c27`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1B1	5794 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.