PDF malware analysis — malicious · b1866e274774090f

MALICIOUS

PDF

1.4 KB

MD5: 9805b1824cd69f8d579a13f4d48d7cf8 SHA-1: d3fb207b10f9124c85d0f218b5b6e264e8b412a0 SHA-256: b1866e274774090f016c2db16805155455bb4eb39018093edc0c677fa6c9ea94

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: User Execution T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability related to media player handling. The JavaScript is obfuscated, but the presence of unescape() calls and the specific exploit indicate an attempt to download and execute a second-stage payload. The document body is unreadable, but the heuristics strongly suggest a malicious exploit delivery.

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` `ad077e93e1aa5b0758c4873d2623e8ce67b4a5539a9160f6f168c5e0bfc268dd`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1270 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` `b007b1d7638e5e11eb9b8e81a22b8bfcb2af041b94c4844ce02f36d9c8675cae`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x48D	256 bytes

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