PDF malware analysis — malicious · 3cee0d43f60c129e

MALICIOUS

PDF

8.6 KB Created: 2010-05-20 22:09:18 Authoring application: Liajepinenanonizoorze

MD5: 5e1a9acc4559eaaba5e13d2a93dcd334 SHA-1: ae825c04468147abb9d2a004811d12e383f6922b SHA-256: 3cee0d43f60c129ef1110852dae885c9b66a48ecebc150ea036962173fddde41

298 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file leverages multiple critical vulnerabilities (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659, CVE-2008-2992) to execute obfuscated JavaScript. The JavaScript is XOR-decoded from the document's text content and is designed to be evaluated by the PDF reader. The primary intent appears to be downloading and executing a secondary payload, indicated by the presence of deobfuscated JavaScript and multiple exploit firings. The specific family is not identifiable 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_obj0016_000.js` `19eed0f0e109a7a718fa6d1b7f0c59a8b2efecf9fe1205dbcf521ea42e0d9bb7`	pdf-javascript-stream	PDF /JS object 16 at offset 0x1726	3426 bytes
`page_word_xor_stage_000.js` `716bb3f2c4bb5c5d03294dd84a0dfd2e4fd871c39b8e149a5bbaa7a3b6a44f75`	deobfuscated-js	page-word XOR decoded JavaScript (decompressed, key=0x57) at offset 0x3EC	3575 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s).

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