PDF malware analysis — malicious · f5f606d71e7e837e

MALICIOUS

PDF

177.8 KB Created: 2010-06-29 10:14:47 +08:00 Authoring application: Acrobat 编辑器 8.0 (via Adobe Acrobat 8.0)

MD5: e9d4bfdaf546a9837de360cfac9902aa SHA-1: ca77bab36401b92af4a83e0273504b925c2b8379 SHA-256: f5f606d71e7e837ea193f88e4079a9be7f9fb4b076bc806b10cb5fd8fc0019ac

256 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The PDF file contains embedded JavaScript that leverages the CVE-2009-4324 vulnerability (media.newPlayer). This exploit is designed to execute arbitrary code, and the presence of a secondary embedded PDF and suspicious JavaScript streams indicates a multi-stage attack. The primary goal appears to be the execution of a malicious payload, likely downloaded from an external source, though the specific download URL is not directly extractable 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)
Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE

A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
ClamAV: Pdf.Exploit.Agent-30096 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Exploit.Agent-30096
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (matched inside decoded stream)
Suspicious extracted artifact medium 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.
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.
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://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/xap/1.0/mm/
- http://ns.adobe.com/pdf/1.3/

Extracted artifacts 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0021_000.js` `3ae5b7a1b0d7e989bb5c35f971e1c289cb019c7ea59d641be4ea1a6ac72945d2`	pdf-javascript-stream	PDF /JS object 21 at offset 0x514	2773 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s). Carved artifact contains 1 long hex-escaped blob(s).
`legacy_pdfkit_stage_000.js` `42c3f4df375ff6f58ff655cc4f88b5cc28f0dd33b978390db3538684a6219b74`	deobfuscated-js	string-concatenation normalized Acrobat API aliases at offset 0x514	126 bytes
`font_00_sfnt_off00016c0f.bin` `4807c1168bfda86ffec5df96bbf1b67aba1fb886e60844e21aa4956265798cc4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x16C0F	100932 bytes
`font_01_sfnt_off00024952.bin` `0f333a905e74b91b11a5093367fcfa82acf0866557879775b6163604943dee81`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x24952	38900 bytes
`polyglot_child_pdf_off00006702.pdf` `d759e4f631a929f1e30a4f3793bc77654c5130bff0be205a5cef541c221c0253`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x6702	155702 bytes
`polyglot_child_pdf_off0002af4b.pdf` `0b1c923c8a0028794f3a3244dc498786746334f394e41678cc58ffbeb707d0a8`	polyglot-child-pdf	Secondary PDF body inside pdf container at offset 0x2AF4B	6125 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.