PDF malware analysis — malicious · e6429a76b2ea0776

MALICIOUS

PDF

9.1 KB Created: 2010-06-13 18:55:53 Authoring application: Gbave ga (via 096f4Nikezenonageneenakvebi)

MD5: dff1642b47de1feb9e84b51b253b1f3f SHA-1: c254df2661eee570b61489e87ed3695d89a650cc SHA-256: e6429a76b2ea0776e80334f555ece961d7d0dbabae695dee510b41fb61897373

298 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

This PDF document is malicious due to the presence of embedded JavaScript triggered by the 'OpenAction' feature. The heuristics indicate exploitation of multiple CVEs (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, CVE-2008-2992) through XOR-decoded JavaScript. This script is designed to execute arbitrary code, likely downloading and running a second-stage payload. The obfuscated nature of the script and the reliance on specific PDF reader vulnerabilities suggest a downloader or exploit kit.

Heuristics 8

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. (identified after JavaScript deobfuscation)
Collab.getIcon — CVE-2009-0927 critical CVE exact CVE_2009_0927

PDF JavaScript calls Collab.getIcon — CVE-2009-0927 is a stack buffer overflow in Adobe Reader triggered by Collab.getIcon() with a crafted argument. Allows arbitrary code execution. (identified after JavaScript deobfuscation)
Collab.collectEmailInfo — CVE-2007-5659 critical CVE exact CVE_2007_5659

PDF JavaScript calls Collab.collectEmailInfo — CVE-2007-5659 is a buffer overflow in Adobe Reader triggered by a long argument or heap-sprayed message field passed to Collab.collectEmailInfo(). Part of a series of Acrobat JS API exploits. (identified after JavaScript deobfuscation)
util.printf — CVE-2008-2992 critical CVE exact CVE_2008_2992

PDF JavaScript calls util.printf() — CVE-2008-2992 is a stack buffer overflow in Adobe Reader triggered by a long format-specifier argument. Widely exploited in the wild after disclosure. (identified after JavaScript deobfuscation)
OpenAction trigger high PDF_OPENACTION

PDF has an /OpenAction — code runs automatically when opened
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_obj0015_000.js` `aa9c566278ad25a7bfd82182a1176cbb1dbe45be9de503aecc43706d48fd95a1`	pdf-javascript-stream	PDF /JS object 15 at offset 0x16CF	4006 bytes
`page_word_xor_stage_000.js` `e2536ad16b76789555f47fd45cbb1a5d00cc205b32be3fc1d14c5a157b2f1e7d`	deobfuscated-js	page-word XOR decoded JavaScript (decompressed, key=0x08) at offset 0x77C	3347 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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