Analysis
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max time kernel
148s -
max time network
120s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
29-12-2023 22:15
Behavioral task
behavioral1
Sample
056155b137e1ddc0de9570fbc67198ce.jar
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
056155b137e1ddc0de9570fbc67198ce.jar
Resource
win10v2004-20231222-en
General
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Target
056155b137e1ddc0de9570fbc67198ce.jar
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Size
107KB
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MD5
056155b137e1ddc0de9570fbc67198ce
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SHA1
f3a3e2713659b7f0850dbb3ccd59af14a361e493
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SHA256
92eb16844e647e0f054c3a4b18d5dce0017a4baafccc7b8b02f679706ce3cf90
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SHA512
03fdb5ba8af6b79246a4febff533a0cc5bb1d12afc36bf04fc89b3eb77594a6e0e1c9ef9064e3facf8996bce00ab1e96a616ba0f103a98f8aa9d7b52c2d31290
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SSDEEP
3072:wtKk+eojbO/2IKV5nv6A67yFCM1zm2eY6Oj77Yxg:WKk+eoLVVv6DpFY6Oj7kxg
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\ntdll.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\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\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\symbols\dll\jvm.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\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\dll\jvm.pdb java.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
java.exedescription pid process target process PID 2712 wrote to memory of 4672 2712 java.exe icacls.exe PID 2712 wrote to memory of 4672 2712 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\056155b137e1ddc0de9570fbc67198ce.jar1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:2712 -
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:4672
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD54f4064658b132765a6aee95a464a7c1e
SHA1d55ad2df3aea8e0536e1d9e361845d0b222cbe91
SHA256bd62e241c72ccbb5cc102849b68bd3494f56637a34a0c77696573fbc3e3f9665
SHA5122fe0b26e3daede5429dab8897ec1bb26fad6d2623b2a4cc72dbccf1d6139a9b1dfb4c4690ebe6675e6861b31a8d483b73dbb8f3903ff88c663e3089acfb22e0d