Analysis
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max time kernel
137s -
max time network
177s -
platform
windows10-2004_x64 -
resource
win10v2004-20231020-en -
resource tags
arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system -
submitted
25-10-2023 14:42
Behavioral task
behavioral1
Sample
NEAS.27f16f3e0ae8499d98a9b7537ff2619d54bc8a7d8350f3f547521eb5b39bdb6bzip_JC.jar
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
NEAS.27f16f3e0ae8499d98a9b7537ff2619d54bc8a7d8350f3f547521eb5b39bdb6bzip_JC.jar
Resource
win10v2004-20231020-en
General
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Target
NEAS.27f16f3e0ae8499d98a9b7537ff2619d54bc8a7d8350f3f547521eb5b39bdb6bzip_JC.jar
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Size
164KB
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MD5
250d09e650c301b53d00a703f39354d1
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SHA1
aeb977370e8e40c7323ecebe262d153ea59bd7c6
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SHA256
27f16f3e0ae8499d98a9b7537ff2619d54bc8a7d8350f3f547521eb5b39bdb6b
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SHA512
26130963ba22be6a76bba8d9d6345bf2cd3098f1ba77aa623deed44dd8552268e37b27c50d0fa2727a98a95c2abcdc4fab82838c4e28b9d3cf9987e0b0c5c352
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SSDEEP
3072:Yw81M/EYAmf2Es926lSu9TFrkVYOms/0dOM4rgx+Feg0xwLxY5cE:YzIfNTu9TiVYOme0PQFAxw9KP
Malware Config
Signatures
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Modifies file permissions 1 TTPs 1 IoCs
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Drops file in Program Files directory 12 IoCs
Processes:
java.exedescription ioc process File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb java.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
java.exedescription pid process target process PID 2888 wrote to memory of 4336 2888 java.exe icacls.exe PID 2888 wrote to memory of 4336 2888 java.exe icacls.exe
Processes
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C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exejava -jar C:\Users\Admin\AppData\Local\Temp\NEAS.27f16f3e0ae8499d98a9b7537ff2619d54bc8a7d8350f3f547521eb5b39bdb6bzip_JC.jar1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2888 -
C:\Windows\system32\icacls.exeC:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M2⤵
- Modifies file permissions
PID:4336
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD576700259541ed72c642cf7ac9a3d12a0
SHA1be8de51b0f8a1cd7f742e21888ab93385759515a
SHA25614fcc13381d75bce3a6180d37fff1b86de312a6c1a6a4a3362f732e16fde313d
SHA5124af3dbfb0afb85c5c97b220f0a3155fe7decef773b815e414d2ebfee1ba05dbb26931b7911d3e3d0f3e2b69084f751adae98aaab4c7791b32266dd89f154c6e0