PDF malware analysis — malicious · dfe179cdf436f07d

MALICIOUS

PDF

6.6 KB

MD5: d9eca6d2f07e41cdf6b2c7cbbd80b450 SHA-1: 33dfbebd2ebbe1f7e507d63fa31fec1cea72774b SHA-256: dfe179cdf436f07dd119baa7ec32cd6988af422244d285c4c27f1114c8ed68b0

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. A critical finding is the exploitation of CVE-2008-2992 via a util.printf call within a decompressed stream. This suggests the file is designed to leverage this vulnerability to execute arbitrary code. The presence of obfuscated JavaScript and a ClamAV detection for Heuristics.PDF.ObfuscatedNameObject further supports 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` `5943ad32c5058494c442ddadf56faa0a5231da8263c8ebdd01f23c7d10649c86`	pdf-javascript-stream	PDF /JS object 6 at offset 0x1A1	5520 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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