PDF malware analysis — malicious · ad69daa1d37fb277

MALICIOUS

PDF

5.7 KB

MD5: 8b309fb3d3df4b6c0301537eeaf0c498 SHA-1: 6e7121ee7c9296d085b39cbc3983b932579fef20 SHA-256: ad69daa1d37fb2771e485a09a4615ffb04decf32155150867950fef1436f225c

178 Risk Score

Malware Insights

MITRE ATT&CK

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' firing suggests exploitation of a known vulnerability within the PDF structure. The embedded JavaScript stream, named 'javascript_obj0006_000.js', is likely responsible for executing malicious code, potentially downloading further payloads or exploiting the CVE-2008-2992 vulnerability. The 'CLAMAV_DETECTION' heuristic further supports 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` `89366530082b603dd65e8472fa25a00190aba1514bb28f6ad48f8965737da9d7`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A1	4895 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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