Analysis
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max time kernel
142s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
06-01-2024 20:22
Behavioral task
behavioral1
Sample
4719369301021c7fafd27809940a39e2.jar
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4719369301021c7fafd27809940a39e2.jar
Resource
win10v2004-20231222-en
General
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Target
4719369301021c7fafd27809940a39e2.jar
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Size
107KB
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MD5
4719369301021c7fafd27809940a39e2
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SHA1
3ba8f49bfa4012a9c6a8037c1578591014fbbb99
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SHA256
0a4662f9f759781f50cecb082c783d73cf78b388ee0904fd11286417879286e2
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SHA512
bfa0921afcdb27a810466d68c9668cc0c7202a1e36a7bccf40cf3fd373ca2ee4043eb1f17a167fafab9a34b9af5170a62dc169478bce055373b9d001c8c9a9f8
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SSDEEP
3072:O4tT+jKYgGT+0rREjSgM+Kgr9CCjQ3SWPA:OEyjKY5ngM+Kgr0+T
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\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\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\ntdll.pdb java.exe 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\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\dll\ntdll.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\symbols\dll\ntdll.pdb java.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
java.exedescription pid process target process PID 1356 wrote to memory of 3876 1356 java.exe icacls.exe PID 1356 wrote to memory of 3876 1356 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\4719369301021c7fafd27809940a39e2.jar1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1356 -
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:3876
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD59ef0609a4942de46975f999e1708ba71
SHA1e6700789f1617d1de8579799dd43da02f91eaa04
SHA256bd89b9809adf8b33e143bad65820e0adf9586c7b18c6c0ca807c563b53414424
SHA51276db51ef6186e60fa044877e5baae8bf2428295fe01945a2cd6e7d93ca769a0df060039cfaac1fbea797011d86803657402fd34c38b54022964f84ef6bef35e9