PDF / .PHP malware analysis — malicious · d99b8fcdb8c6eef5

MALICIOUS

PDF / .PHP

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

MD5: e25dd5dce2c2a519585966fc5c799db3 SHA-1: 505253d613d35dd17e8beaec21708c996b2f38bf SHA-256: d99b8fcdb8c6eef547b263ce1929823a923e695222cb6fbe66c411eb62e7c3d8

198 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

This PDF file exploits multiple known vulnerabilities (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659) through embedded JavaScript. The heuristics indicate that the PDF launcher concatenates information fields, extracts characters at a fixed stride, and evaluates the result. This process is designed to download and execute a second-stage payload, as suggested by the presence of deobfuscated JavaScript files.

Heuristics 6

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)
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 6

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0032_000.js` `ee89cb2020be93612ebdb1058895f5cd052e9b5c1dafdcc9edf03fbf50e251c9`	pdf-javascript-stream	PDF /JS object 32 at offset 0x2E9	235 bytes
`javascript_obj0034_001.js` `a1e7a1d4cc0e6389d94c3ad1a4a33fa7a7191d50d4047066c806cbbf330bdb9c`	pdf-javascript-stream	PDF /JS object 34 at offset 0x3CF	307 bytes
`javascript_obj0036_002.js` `c76f52f8c2842261e85b631629252b637c87e30fad661e273e24b8aae3bb2b37`	pdf-javascript-stream	PDF /JS object 36 at offset 0xAC	166 bytes
`legacy_pdfkit_stage_000.js` `a83ef2e5135b0a1f318cc309883f78d75ddda0a26109b79528f7b832c4bbbe23`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x4F9	1675 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` `39c9bd833cbbf0ea34221591edacb9b2de0fba2b69bcb0ab01498285c7a93a44`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xA95	1833 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` `0cc6c1aceebc8b6b04e97072fc91c4c6a94299689bc720d7fa99cb10a97e712e`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x1016	3015 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).

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