PDF malware analysis — malicious · ccf9d1903c9bc6c2

MALICIOUS

PDF

12.1 KB Created: 2009-11-07 19:48:17 Authoring application: PDF Library 5.1.4 (via PDF Library 4.9.8)

MD5: 2d985256c2aedde28524fb286b599474 SHA-1: 7da6cd4e8f8881e2d18e20649811297d84143b7f SHA-256: ccf9d1903c9bc6c26fc9c135f748043404cc40cef3905ef2b46879082f1eb01c

220 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

The PDF exploits CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992 using embedded JavaScript. The JavaScript is obfuscated and likely serves as a downloader for a second-stage payload. The exploitation of multiple CVEs indicates a sophisticated attack, likely part of a broader exploit kit campaign.

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` `ecd8eeadc6c5df6931e20cfc8ddcad2606d0403d2075a60a4beb9eafec0a9fe9`	pdf-javascript-stream	PDF /JS object 7 at offset 0x268	38123 bytes
`legacy_pdfkit_stage_000.js` `fda9b8bc162e54b94d04a763d898403981a00cf84789d1fbf64eb02cc7630e71`	deobfuscated-js	numeric array subtract-key decoded JavaScript at offset 0x268	9874 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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