PDF malware analysis — malicious · 3d1ac59df45a3a9e

MALICIOUS

PDF

15.2 KB Created: 2006-09-24 29:45:56 Authoring application: Fexaxououazobb

MD5: 2dd2f65416d01342f40fa9902e5669ef SHA-1: 9827b5c0e8afc8c580f7f319a6a24649fb5518a7 SHA-256: 3d1ac59df45a3a9e6e1e5abce6a99d80265f739d196a2cd0d6ef05449a3ee5e8

248 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that leverages multiple known vulnerabilities including CVE-2009-4324, CVE-2009-0927, and CVE-2007-5659. The JavaScript uses eval() and String.fromCharCode, indicating obfuscation and dynamic code execution. The primary intent appears to be exploiting these vulnerabilities to download and execute a secondary payload, though the exact nature of the payload cannot be determined from the provided evidence.

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)
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.
String.fromCharCode low PDF_FROMCHARCODE

String.fromCharCode found — used to construct payload strings dynamically. Common in benign JavaScript libraries for codepoint manipulation, so this alone is informational; weaponised use is also caught by the dedicated fromCharCode-stage and exploit-shape rules. (matched inside decoded stream)
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_obj0010_000.js` `4d0f3dc53968436994053b4588ef3e8128bb97a4aff684ce383ad24da5d00d49`	pdf-javascript-stream	PDF /JS object 10 at offset 0x38B4	300 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 eval/decoder/string-building token(s).
`javascript_obj0011_001.js` `bd4ca2a7862e42c9bda576a95c2d3f75ea73c7de1f19d7a497775e6d23f1abef`	pdf-javascript-stream	PDF /JS object 11 at offset 0x39C6	300 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` `d5948ff192d6ca2407d0b2a10b2128c35ec78c0610bfa9cb76b92d5f8d8aea9e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x1C7	28655 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 81 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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