PDF malware analysis — malicious · a69ef2a18569174e

MALICIOUS

PDF

4.6 KB Created: 2008-09-24 19:47:56 Authoring application: Adobe (via Notepad)

MD5: 0c7b2d8f1138badf7dd684c581a6e2bc SHA-1: 22c7b1f411f52dba13c7211a70e602f90750d380 SHA-256: a69ef2a18569174eca2bcde3a9bd40f7d8dad034df60d4f70c5ac3f22a815b0d

238 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that leverages known vulnerabilities (CVE-2009-0927 and CVE-2009-4324) through the use of `Collab.getIcon` and `media.newPlayer` functions. The `eval()` call within the JavaScript indicates that the code is likely obfuscated and designed to execute arbitrary commands. This pattern is typical for PDF-based exploits that download and run additional malware. The ClamAV detection further supports the malicious nature of the file.

Heuristics 7

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)
ClamAV: Pdf.Exploit.Agent-35931 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-35931
eval() call high PDF_EVAL

eval() found — commonly used for obfuscated exploit execution (matched inside decoded stream)
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_obj0006_000.js` `81d72c2a58f6a52ff4bf06d9fc4d9ff729ff384e0199deffc9223d8c9f9b10fc`	pdf-javascript-stream	PDF /JS object 6 at offset 0xEEC	681 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `18ab354baaf8b17b197eaa2bd99ca8d5b5fb1669b87179732f9dde600587f623`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x16E	3288 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s).

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