PDF malware analysis — malicious · c30e7ee6f645b961

MALICIOUS

PDF

12.5 KB

MD5: 0952832dc5010102862d746f1b9e588c SHA-1: b72bc87751c015fc2d41736b14b798c6c8579384 SHA-256: c30e7ee6f645b9612c3a2137afb0ab5a98f8d047dbf851ed83ed82f619d5919c

318 Risk Score

Malware Insights

MITRE ATT&CK

T1204 Malicious File T1204.002 Malicious File: User Execution: Malicious Attachment T1059.001 Command and Scripting Interpreter: JavaScript T1190 Exploit Public-Facing Application

The PDF file contains multiple critical heuristic firings indicating exploitation of several Adobe Reader vulnerabilities (CVE_2009_4324, CVE_2009_0927, CVE_2007_5659, CVE_2008_2992). These vulnerabilities are used to execute embedded JavaScript, which likely downloads and executes a second-stage payload. The ClamAV detection further confirms the malicious nature of the file.

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)
ClamAV: Pdf.Exploit.Agent-36291 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-36291
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_obj0076_000.js` `abeeac8f68428f8b9b77206bd6043b3c547ed50cf9ba82695ac0f05f7e584f11`	pdf-javascript-stream	PDF /JS object 76 at offset 0x369	11727 bytes
`legacy_pdfkit_stage_000.js` `fe4eec3e2b9afc3b498cc6cc6a5c13c9bd817ba2107a427a73d3defbef9333ce`	deobfuscated-js	string-index array decoded JavaScript at offset 0x369	3864 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 11 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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