PDF malware analysis — malicious · 7fd41554f2ea4779

MALICIOUS

PDF

1.4 KB

MD5: e46cdc50e4efd674e7aa503bccd66b5e SHA-1: c6c7a0a4b9bb223099494250c32902c31f0abaa8 SHA-256: 7fd41554f2ea4779c604915f11ca61df4fa3e20798644da8c26a310f994e6069

118 Risk Score

Malware Insights

MITRE ATT&CK

T1204.002 Malicious File: Malicious File

The PDF file contains embedded JavaScript, which is triggered by the CVE-2009-4324 vulnerability related to media.newPlayer. The JavaScript is obfuscated and likely intended to download and execute a second-stage payload. The presence of multiple JavaScript streams and the unescape() function further indicate malicious intent.

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` `c1b3dcb18080459981b3680389bf9760f146c54f19b20a6d3f64053ab66dcf71`	pdf-javascript-stream	PDF /JS object 111111 at offset 0x160	1253 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` `8e26f9536e70bc137420bc36d8307f3a595a92f6ced62f26935cf997f143a43b`	pdf-javascript-stream	PDF /JS object 111112 at offset 0x482	253 bytes

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