PDF malware analysis — malicious · ced9eb71f52132e4

MALICIOUS

PDF

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

MD5: 0ff6f7096e08f3325d8a93b3d3b0a9af SHA-1: dcfb1345eabc124beeb2302b3c8997daa5fb1ffd SHA-256: ced9eb71f52132e47dcca4eeaa7e9ca4465cec9a577029b698bbe32c34f07582

278 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.001 Malicious Link T1204.002 Malicious File

This PDF document exploits multiple known vulnerabilities (CVE-2009-4324, CVE-2009-0927, CVE-2007-5659) through embedded JavaScript. The JavaScript utilizes eval() and unescape() functions, indicating obfuscation and likely intent to download and execute a secondary payload. The specific vulnerabilities targeted suggest an older exploit kit or a custom exploit delivery mechanism.

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)
unescape() call high PDF_UNESCAPE

unescape() found — often used to decode shellcode in PDF JS exploits (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.
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 8

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0032_000.js` `eedb05ed43556ccf5892afd590c24e2335fb5bb1489325a84f74799fc26af175`	pdf-javascript-stream	PDF /JS object 32 at offset 0x42D	136 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj0034_001.js` `8a904d64f5b33adb0530ca3c3ea4e631c3c47d7fd0302343f809ffd70b36c53f`	pdf-javascript-stream	PDF /JS object 34 at offset 0x4EF	145 bytes
`javascript_obj0036_002.js` `fa34f57a35944b1b614b0be4f078fa91763cc79942c0afab90274455f81f5a96`	pdf-javascript-stream	PDF /JS object 36 at offset 0x10D	168 bytes
`javascript_obj0038_003.js` `767fe6d09a082f3764fe96e4351fa09118ba144a1b3fe4ea13b2780826fd3b10`	pdf-javascript-stream	PDF /JS object 38 at offset 0xC61	186 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj0078_004.js` `43b908da34a3d8d0dd4d02700c8ef4a932b6933ab142904f5869a186bab98b37`	pdf-javascript-stream	PDF /JS object 78 at offset 0x7C	51 bytes
`legacy_pdfkit_stage_000.js` `be9841adeeefeb5d989507a5860470eb5e94e3dd76e4efe46d1919600b3f396a`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x5EB	1634 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` `45309929b9cc86f11c3aef286f00966dacc33cffc2e995254843256c042368b8`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xDA4	1800 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` `79023f406c17382e93f21354563db1607723fa30df38514a3e196e6b1dfea534`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x1410	2938 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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