PDF malware analysis — malicious · 0354fe23c60e6810

MALICIOUS

PDF

568.1 KB Created: 2008-01-05 16:25:50 +01:00 Authoring application: LaTeX with hyperref package (via pdfeTeX-1.21a)

MD5: ab12560f5a4af29560eef3ac633950f7 SHA-1: 0c3f337643ab3888ad99234fe8b014288f865826 SHA-256: 0354fe23c60e6810883d4b8cb74b65a02768eae238c9c27a93fef9cdf39bc5d2

212 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF exploits CVE-2011-2462 and CVE-2009-3459 related to the Adobe Reader 3D U3D parser. The embedded JavaScript performs a heap spray, a common technique used to prepare for exploitation. The script's primary function is to facilitate the execution of arbitrary code by leveraging these vulnerabilities, likely leading to the download of additional malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9894

Heuristics 8

Adobe Reader U3D parser exploit with JavaScript heap spray critical CVE likely CVE_2011_2462_U3D_HEAPSPRAY

PDF combines U3D/3D annotation content with JavaScript heap-spray shellcode. Public CVE-2011-2462 exploit chains use a crafted U3D stream and JavaScript heap spray to control memory during Adobe Reader's U3D parser corruption.
Adobe Reader U3D auto-activated 3D annotation — CVE-2009-3459 critical CVE likely CVE_2009_3459_U3D_AUTOACTIVATE

PDF contains a /Subtype /3D annotation that is configured to auto-activate on page view (/3DA <</A /PV /AIS /I>>) alongside a /U3D stream and JavaScript. This is the document shape used by CVE-2009-3459 (Adobe Reader U3D CLODProgressiveMeshDeclaration heap overflow, APSB09-15): the U3D parser runs without any user interaction once the page is rendered, while the accompanying JavaScript prepares a heap-spray to land controlled memory inside the corrupted allocation.
U3D/3D content in PDF — Adobe Reader 3D parser CVE-family indicator high CVE related PDF_U3D_CVE_RELATED

PDF contains U3D (Universal 3D) or 3D annotation content — CVE-2011-2462 and CVE-2009-3953 are critical vulnerabilities in Adobe Reader's U3D processing that allow arbitrary code execution. U3D content in PDFs is extremely rare in normal documents.
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.
External URI info PDF_URI

PDF contains an external URL action
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.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL http://vcg.isti.cnr.it)/S/URI/Type/Action
- http://meshlab.sourceforge.net)/S/URI/Type/Action
- http://vcg.isti.cnr.it
- http://meshlab.sourceforge.net
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://ns.adobe.com/xap/1.0/
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/pdfx/1.3/
- http://ns.adobe.com/xap/1.0/mm/

Extracted artifacts 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0015_000.js` `b1aa44f4b62d474640259e26224ed7345879053343648a220ae45c22d4af7091`	pdf-javascript-stream	PDF /JS object 15 at offset 0x665	2575 bytes
`stream_010_off00062b14.bin` `b1f937b9541d599e1c6000c4c47f7f3f21a4d9b0e1051c8a5580e07bc6106afd`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x62B14	177792 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.72, consistent with packed or encrypted content.
`font_00_type1_off0005bf51.bin` `d129a586d7449f3004ab2629e1b01753002037f8ca955d68339aba6fea13d9dd`	pdf-font-stream	PDF embedded font (type1) at offset 0x5BF51	6428 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.55, consistent with packed or encrypted content.
`font_01_type1_off0005d7ec.bin` `6d68a200ddadd677e7031f9795a017ce42b4d7f02b68d39a072ecbc1e20fb5d6`	pdf-font-stream	PDF embedded font (type1) at offset 0x5D7EC	7849 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.64, consistent with packed or encrypted content.
`font_02_type1_off0005f6b8.bin` `cab7a46a0f2b73639fc37aa221b515da6888b096748ee89dec2f4876e25f7f1f`	pdf-font-stream	PDF embedded font (type1) at offset 0x5F6B8	2374 bytes
`font_03_type1_off0005fea9.bin` `f1d06dc0327817e03d778a88f65436557134c269106fbc5438dd4ef0c897a441`	pdf-font-stream	PDF embedded font (type1) at offset 0x5FEA9	11287 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.76, consistent with packed or encrypted content.

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