PDF malware analysis — malicious · c2f2c0d2ef38e3e8

MALICIOUS

PDF

5.8 KB

MD5: 9c438ca2e8f776eb961fac7cd22fd690 SHA-1: 8b41e6ef3a50ce6efb74b845595b348e1c442509 SHA-256: c2f2c0d2ef38e3e8431a980b8950e5de6556e983ca58e80242a2d192208ccf85

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2008-2992, indicating exploitation of a known vulnerability. The presence of JavaScript and the specific exploit suggest the file is designed to execute arbitrary code. The obfuscated nature of the document body and the embedded JavaScript stream further support a malicious intent, 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` `187bb11fd8759da0ad715cc391c16d8ce4109d9989399c58c75d4b24d3f3bb2f`	pdf-javascript-stream	PDF /JS object 6 at offset 0x181	4905 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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