PDF malware analysis — malicious · 4b884fb3cf8306f6

MALICIOUS

PDF

4.9 KB Created: 2009-08-25 19:42:92 Authoring application: Eblasha 4.10.1.4 (via PDF Library 6.2.1.5)

MD5: 275ae18a1154d25abfc0b321b98bafc8 SHA-1: aa9f3d6b63045d2bde6f6154c183388d17cc77e6 SHA-256: 4b884fb3cf8306f6329a7899915fcc016ee88e5cb40c10ecdf5a0910a7826e11

208 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link

This PDF file contains embedded JavaScript that exploits multiple known vulnerabilities in Adobe Reader, specifically CVE-2009-0927, CVE-2007-5659, and CVE-2008-2992. The JavaScript is obfuscated and likely intended to download and execute a second-stage payload. The presence of these critical exploit indicators strongly suggests malicious intent.

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)
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.
ASCII85Decode filter (with exploit indicators) low PDF_FILTER_85

ASCII85 encoding filter present alongside exploit delivery indicators — uncommon outside of obfuscation
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_obj0013_000.js` `c705d2f259285fd8834746cc354121bf930847e9c11e02b87e8c439143971e39`	pdf-javascript-stream	PDF /JS object 13 at offset 0x37C	26821 bytes
`numeric_charcode_stage_000.js` `eebacc5cbbbf38dd38997e3d86cc29807e4930b8b35fdbfc2b48a2b17276074c`	deobfuscated-js	numeric char-code string decoded JavaScript at offset 0x3C9	8214 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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