PDF malware analysis — malicious · b6e2d6ecfa2762bb

MALICIOUS

PDF

1.4 KB

MD5: 38f165220f4e970a6142c41600c068bb SHA-1: 9f15d17cf257738300db0ebc68040e19fbf07fe2 SHA-256: b6e2d6ecfa2762bbc8942bd261777852549472b3e80bc8dcc6188ac5ca0b7c50

178 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, indicated by multiple heuristic firings including PDF_JAVASCRIPT and PDF_JS. The critical CVE_2009_4324 heuristic firing suggests the exploitation of a vulnerability related to media.newPlayer. The embedded JavaScript, likely obfuscated, is designed to execute malicious code, potentially leading to further compromise. The ClamAV detection further supports its malicious nature.

Heuristics 6

media.newPlayer — CVE-2009-4324 critical CVE exact CVE_2009_4324

PDF JavaScript calls media.newPlayer — CVE-2009-4324 is a use-after-free in Adobe Reader's multimedia plugin triggered by media.newPlayer(). Actively exploited as a zero-day in December 2009. (matched in decompressed stream)
ClamAV: Pdf.Exploit.Agent-15428 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-15428
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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `0ea840cfd3891ae91a2172d80d0b8667131c6d8d30d2fa86f1e615f5b2918177`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1263 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).
`javascript_obj111112_001.js` `f17449f51e7b68e27f66d08fe377892c10cf940323e2efb74d921c6f0df217e8`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x488	250 bytes

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