PDF / .PHP malware analysis — malicious · 65dd306311d5073d

MALICIOUS

PDF / .PHP

6.5 KB Created: 2009-01-35 62:12:26 Authoring application: Adobe

MD5: 0c42825d77b68024d6637266c35e205a SHA-1: 4d287982f8843dfc2c3da6814986375c511ea277 SHA-256: 65dd306311d5073d78e0d42ad87f9e7fde0df3d123718dd52b7ec4b404e964d2

270 Risk Score

Malware Insights

MITRE ATT&CK

T1203 Exploitation for Client Execution T1059.007 JavaScript

The sample exploits multiple known PDF vulnerabilities (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659) via embedded JavaScript. The JavaScript code constructs a URL and appears to download a second-stage payload. The deobfuscated JavaScript explicitly contains the URL http://witedirect.com/parent7/exe.php?exp=pdf, which is likely used to fetch the next stage of the attack.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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)
PDF JavaScript shellcode contains an embedded download URL high PDF_JS_SHELLCODE_DOWNLOAD_URL

Decoded PDF JavaScript shellcode contains a hardcoded http(s) URL stored as little-endian %uXXXX Unicode escapes. Reader exploit shellcode embeds the second-stage fetch URL this way and pulls it down with a urlmon/URLDownloadToFile-style download-and-execute (commodity downloader behaviour rather than a specific Acrobat CVE).
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.
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://witedirect.com/parent7/exe.php?exp=pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0032_000.js` `c5118b0465bfdc6ff5a5e725d0fa1fd485d1cbdacca28f4c0df057cfbe699b04`	pdf-javascript-stream	PDF /JS object 32 at offset 0x369	306 bytes
`javascript_obj0034_001.js` `a0a84b839ff125f6b16ff40469fe1c87cbf5c72ec0e3c9cc60b55ac9767026d1`	pdf-javascript-stream	PDF /JS object 34 at offset 0x473	441 bytes
`javascript_obj0036_002.js` `122a52f79a9a692093441b6b107f95c498f27695e001e8d77a81313b96da2d8e`	pdf-javascript-stream	PDF /JS object 36 at offset 0x7C	290 bytes
`legacy_pdfkit_stage_000.js` `91be26a3bf133dc3029bb87d5ef62aa711d3453642ddd7fd9345ec23c910ee6c`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x5CA	1646 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_001.js` `13c62319adb3cc8074e3213806d6dcefd470745523b2bdeb321cbd45f3894e45`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xBD3	1806 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 3 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_002.js` `102d5567e3403a6fe098fa4f3ecfaaef8288a033df2a7f2ce93f0cb8d823f6f3`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x11B1	2950 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 6 eval/decoder/string-building token(s). Carved artifact contains 1 long base64-like blob(s).

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