PDF / .PHP malware analysis — malicious · ab095f02d78fc79b

MALICIOUS

PDF / .PHP

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

MD5: ab059c90e9fbfb449d524dd4afa4d2b5 SHA-1: ee953775c9ff5fb3c5c6e63b7051be43de8cf947 SHA-256: ab095f02d78fc79bf757108815023a427bca5135aab09ea00cc3683e0e4b9f66

278 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains multiple critical heuristic firings indicating exploitation of CVE-2009-4324, CVE-2009-0927, and CVE-2007-5659. These vulnerabilities are leveraged to execute embedded and obfuscated JavaScript. The JavaScript streams, particularly the deobfuscated versions, are likely responsible for downloading and executing a second-stage payload. The presence of multiple exploit-related firings strongly suggests malicious intent.

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 7

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`javascript_obj0032_000.js` `9808035d0dc52c74b146dd64a5fe45407b9375496392e795d0cc8d7bc9fc8a6d`	pdf-javascript-stream	PDF /JS object 32 at offset 0x40E	126 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`javascript_obj0034_001.js` `b9930a21c852c4461d23dd6c554551d1c463aa3f6804e785b5a227b614837d03`	pdf-javascript-stream	PDF /JS object 34 at offset 0x4C5	115 bytes
`javascript_obj0036_002.js` `c9ded44bba4ee180eb3fe2cb04087e1767cb25c35732989b0cb6734102ed11d8`	pdf-javascript-stream	PDF /JS object 36 at offset 0xF9	118 bytes
`javascript_obj0038_003.js` `b9739179340b83b0f131a9a003188585b16a85edb9b73e32a6b6593f235cdee1`	pdf-javascript-stream	PDF /JS object 38 at offset 0xC25	146 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s).
`legacy_pdfkit_stage_000.js` `7013041898f168f5c15d691517c5055ec6a486ad39c55052f6838c7962711d62`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x5AB	1640 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` `f064f023f18c3aac3d1d8d08e2bf92ac280a38a05deb06d6e168e58d5a3a1c30`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0xD41	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` `4318f710eeb77b2a6bbc9ee5fc5d93acaebbef7154580817349c5867cab4bbeb`	deobfuscated-js	repeated-marker hex decoded JavaScript at offset 0x13B3	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).

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