PDF malware analysis — malicious · df78eef7f1572b41

MALICIOUS

PDF

4.1 KB Created: 2008-31-20 53:85:00 Authoring application: Scribus 1.3.3.12 (via Scribus PDF Library 1.3.3.12)

MD5: 9bd68d89275402826cb60ffc95779eb6 SHA-1: 16abdbbc1b6471f65a7e03b60cef6a36a7a28cd1 SHA-256: df78eef7f1572b41390adbad915fa1813a5b146012bd6d8f4ac96de48297a57c

158 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript triggered by an OpenAction, exploiting CVE-2009-4324 via the media.newPlayer object. The JavaScript stream, named 'javascript_obj0013_001.js', is obfuscated and likely responsible for downloading and executing a second-stage payload. The presence of JavaScript actions and the specific CVE exploit indicate a malicious intent to compromise the user's system.

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.
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits
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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0013_001.js` `52706e52f4eac322ce1acbf64b8b9bd0299e5d827bbee8a482d8dd30fa993896`	pdf-javascript-stream	PDF /JS object 13 at offset 0x3A1	2621 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).

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