PDF malware analysis — malicious · 374781b69eee3e11

MALICIOUS

PDF

6.3 KB

MD5: 395a742216b7c21eae61e7f9eeb2e9e6 SHA-1: 54217f7b47332b221d0928547471c7cb1b42c0d0 SHA-256: 374781b69eee3e110c96d1c0d8382c60cbb036d38d7137b399c2d5e99921e691

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2008_2992 heuristic firing suggests exploitation of a known vulnerability. The ClamAV detection as Pdf.Dropper.Agent-7249133-0 further confirms its malicious nature. The embedded JavaScript, likely obfuscated, is responsible for executing the exploit, leading to the download or execution of 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: Pdf.Dropper.Agent-7249133-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7249133-0
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` `2ca005279ceeb173bddab4e5b387b5e489d639a943954edd70f3881887bc8152`	pdf-javascript-stream	PDF /JS object 6 at offset 0x19B	5460 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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