PDF malware analysis — malicious · d3a7d6bad437a84e

MALICIOUS

PDF

6.6 KB

MD5: ecc9261f359c00bc30a72a83e8817f36 SHA-1: 8ca7a87fd3f884672df3ca742a2147108ddaa02d SHA-256: d3a7d6bad437a84e9bec7f2df371388894b3648b7378228ba714e8dfe4a8e647

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript/JScript T1204.002 Malicious File

The PDF file contains embedded JavaScript and triggers a critical heuristic for CVE-2008-2992, indicating exploitation of a vulnerability in the PDF reader. The presence of JavaScript and the specific CVE exploit suggest the file's primary purpose is to execute arbitrary code. The ClamAV detection further supports its malicious nature. No specific family could be identified, but the attack pattern is consistent with a downloader or exploit dropper.

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` `b634225f28939afcd42cbfab1c0e365e486cdcb23522f86713f0d2483c7423ad`	pdf-javascript-stream	PDF /JS object 6 at offset 0x18B	5622 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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