PDF malware analysis — malicious · d120e19d4f29c580

MALICIOUS

PDF

5.2 KB

MD5: f8e99b87dd48a1d7e05d64587d85398e SHA-1: 62383be8336230fd0c5e3ef474ac8aebcb4ea3ac SHA-256: d120e19d4f29c580c2304649cbd720159f865a510ea5e94b89ccd1ddbfc64442

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell 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 CVE exploit suggest the document is designed to download and execute a malicious payload. The ClamAV detection further supports its malicious nature.

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` `f53a4f759c28b39d9e67f4ceb84c0ea682ef6d15c1a771ef80541a81ceec2dc0`	pdf-javascript-stream	PDF /JS object 6 at offset 0x18B	4486 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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