PDF malware analysis — malicious · 404f5b46171beee3

MALICIOUS

PDF

12.3 KB Created: 2009-11-04 19:46:26 Authoring application: PDF Library 1.9.1 (via PDF Library 9.6.6)

MD5: 21d3a0f4b42c02f0d0f8b61664365795 SHA-1: 8ef9a4caadeee219904aa4d0d5a5629b9396ca41 SHA-256: 404f5b46171beee397512463675d8b6a9750839edb79ae00aac1e8f247e97a90

220 Risk Score

Malware Insights

MITRE ATT&CK

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

This PDF file exploits multiple critical Adobe Acrobat vulnerabilities including CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992. These exploits are triggered by embedded JavaScript, which is obfuscated and likely intended to download and execute a secondary payload. The presence of multiple exploit indicators and obfuscated JavaScript suggests a sophisticated attack aimed at compromising the user's system.

Heuristics 7

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)
ASCIIHexDecode filter (with exploit indicators) medium PDF_FILTER_HEX

Hex-encoding filter present alongside exploit delivery indicators — often used to hide payload or shellcode bytes
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_obj0007_000.js` `b37a894482969d523a668ec8068fba96a4de1f69b337fe0920f213596d0b8563`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	38453 bytes
`legacy_pdfkit_stage_000.js` `d34e04cb619a17e2b748f455e1d5c8669ef84d6781ec8889d89801be8623ed46`	deobfuscated-js	numeric array subtract-key decoded JavaScript at offset 0x268	9958 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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