PDF malware analysis — malicious · 262dd5cfe9984e30

MALICIOUS

PDF

1.4 KB

MD5: 7c95eed2125464508d44d6ef18784caa SHA-1: e7c059b5695d4cc9a01f2e48053eb731fb1020a9 SHA-256: 262dd5cfe9984e30155d6dc10ce1a62583df8f91ce3e370d4d510661e869e0cb

196 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains embedded JavaScript that utilizes the unescape() function and targets the CVE-2009-4324 vulnerability via the media.newPlayer object. This indicates an attempt to exploit Adobe Reader to download and execute a malicious payload. The ClamAV detection further confirms 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-21110 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-21110
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact medium 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.
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.

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj111111_000.js` `437a49da0fe24cb472066280677949264e7c3ce18bafb40f16792184ca02c105`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1259 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` `f52d68be2bb26d5340b290aa95ad1a4894834607ef3fee2e77601d75f181966f`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x487	262 bytes

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