PDF malware analysis — malicious · de7e35393576a67d

MALICIOUS

PDF

1.4 KB

MD5: d92889a1eb61217949c2ae41db317eb0 SHA-1: 98bca7a80f6a1aa42b20f1713305eb2ba3885bdb SHA-256: de7e35393576a67dade3abe7f6e2099532ea393760ce3d28891d8d2a31c1de31

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File Execution: Malicious File

The PDF file contains embedded JavaScript that is triggered by the 'media.newPlayer' object, indicating exploitation of CVE-2009-4324. The JavaScript is obfuscated, but the presence of unescape() calls and the overall structure suggest it's designed to download and execute a second-stage payload. The file's purpose is to leverage this exploit to compromise the user's system.

Heuristics 5

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)
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` `3334866a23efe04996bda1cef6b275e55bfca37c69d1c1bafe4809214dab3d92`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1276 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` `338d9b232d2d1b0aa7ece71ba8af63cd7a06fb026b7f02337b675f3e25019cb2`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x48F	264 bytes

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