PDF malware analysis — malicious · aba4b8013d8a9fe8

MALICIOUS

PDF

5.5 KB

MD5: c0a38e0331c518df0124113a117bec9b SHA-1: c5ab08a32c36cacbaf31048609a6c0bc5dae75a6 SHA-256: aba4b8013d8a9fe819e663a3f22d2f39f6c8e2b6e5532483b64c5a339741e2b7

178 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 JavaScript T1204.002 Malicious File

The PDF file contains embedded JavaScript, indicated by the PDF_JAVASCRIPT and PDF_JS heuristics. A critical heuristic firing for CVE_2008_2992 (util.printf) suggests exploitation of a known vulnerability. The ClamAV detection and the presence of obfuscated JavaScript further support malicious intent. The embedded JavaScript is likely responsible for downloading and executing a secondary payload, a common technique for initial access.

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` `b2087c3c5a1de83662213c0e34ce6ee708432e906398718932184ebbd45be571`	pdf-javascript-stream	PDF /JS object 6 at offset 0x197	4546 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

Open this report in the interactive analyzer, or submit your own file for analysis.