PDF malware analysis — malicious · 9d7dadea23240f48

MALICIOUS

PDF

9.9 KB Created: 2010-06-06 12:38:58 Authoring application: Pwezicohibemadafi (via 32ba4Swasezoka)

MD5: 76016b74da87c5df9c4ae8cb56383a95 SHA-1: 27ce97caa7b44731584f993359f27ee297e35cec SHA-256: 9d7dadea23240f489567a55fb51ab02bb99abb28054eb7408b9541dc69f9052f

298 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1204.002 Malicious File

This PDF file exploits multiple known vulnerabilities (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, CVE-2008-2992) via XOR-decoded JavaScript embedded within its content. The 'OpenAction' trigger and the presence of obfuscated JavaScript streams indicate that the document is designed to automatically execute malicious code upon opening. This script likely downloads and executes a second-stage payload, although the specific payload and its destination could not be determined from the provided evidence.

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_obj0017_000.js` `dfaf0df11780b2f40266faa477fe5440b90e0d3d484dce0dd1abec0223b6c294`	pdf-javascript-stream	PDF /JS object 17 at offset 0x19D2	4002 bytes
`page_word_xor_stage_000.js` `11237b14b2d926c1daa1be5764d141d4c89c61662ae20b931152c525001fe2dd`	deobfuscated-js	page-word XOR decoded JavaScript (decompressed, key=0xEE) at offset 0x7D1	3028 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 4 eval/decoder/string-building token(s).

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