PDF malware analysis — malicious · 32654593ee83d3bb

MALICIOUS

PDF

17.4 KB Created: 2010-01-01 07:27:45 Authoring application: Fexaxououazobb

MD5: 305ed0994e4bcc2e746bc669785ee33a SHA-1: 7f1c53044ce4f631edec1f5d01fb4e6c6ef0fcbe SHA-256: 32654593ee83d3bb214421c47d9980b74e15223e984a81e235738b2df9dbe5df

260 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains multiple critical heuristic firings indicating exploitation of CVE-2009-4324, CVE-2009-0927, and CVE-2007-5659. These vulnerabilities are leveraged to execute embedded JavaScript, as evidenced by the 'PDF_JAVASCRIPT' and 'PDF_JS' firings. The ClamAV detection 'Pdf.Dropper.Agent-7246672-0' further confirms its malicious nature. The primary attack pattern involves exploiting these PDF vulnerabilities to run JavaScript, which is likely designed to download and execute a secondary payload.

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)
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)
ClamAV: Pdf.Dropper.Agent-7246672-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Dropper.Agent-7246672-0
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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0012_000.js` `55790ca8ef82f2275e44c2772356077dd171d49f83b4623e2b3286d30f5d6be7`	pdf-javascript-stream	PDF /JS object 12 at offset 0x52B	1442 bytes
`javascript_obj0028_001.js` `b9d790f8e138783ad318ec3f31c568e6cca22f3a82017f36e798dee8c15de0c3`	pdf-javascript-stream	PDF /JS object 28 at offset 0x1B9	2140 bytes
`legacy_pdfkit_stage_000.js` `533506899cfdef50d4a59fe3dfe1470824cc09bb00b5d21f6027434cde1967c1`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x7F0	29801 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 91 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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