Analysis
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max time kernel
143s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
03-02-2024 14:41
Behavioral task
behavioral1
Sample
8c967e80d69f6d0407af817acc034ee9.jar
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
8c967e80d69f6d0407af817acc034ee9.jar
Resource
win10v2004-20231215-en
General
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Target
8c967e80d69f6d0407af817acc034ee9.jar
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Size
110KB
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MD5
8c967e80d69f6d0407af817acc034ee9
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SHA1
2dab6fb260d020c40b92280effb4c6f91a97b0ed
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SHA256
945fddfc1fa07995d86ba94d167693ce80f462b3738a6c1c05a5557601aadf2f
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SHA512
63a9f6fd6ec35bb67eebda6a4f1cbb75a2a4d76a800afbac9b04aa2b65a767aab917fd1ba9bfac96386949b7103f96f9b4b66b7eceb2c09f2506d1b465552e15
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SSDEEP
1536:m+6lO77EyNyGSZTvdBxX5CJgOn1HAqnA/GSHLx4hVtjZZ30mlz9YfijW/lS6:mFyYJxX5eggArOSrehHZZEmlx9C/D
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\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\dll\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\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\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 -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
java.exedescription pid process target process PID 3364 wrote to memory of 3940 3364 java.exe icacls.exe PID 3364 wrote to memory of 3940 3364 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\8c967e80d69f6d0407af817acc034ee9.jar1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:3364 -
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:3940
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestampFilesize
46B
MD5c96dcf1835e94417362960785912113a
SHA131f4b35aacfc32e077c8f0fd758437161feb9c77
SHA2564729570392d2cb75053be0c2788d6db08cde2886b1d50a1047995e4e41adea79
SHA5129f70d43d833bdc0b765d50ad815d74eff88e455304aa84d9ac3ea5c526e4026ccd727ca18b0675bd4650583ebacff1b2a7059164cfe8c57872ce8f02a1594d5e
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memory/3364-45-0x0000026B59A30000-0x0000026B5AA30000-memory.dmpFilesize
16.0MB
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memory/3364-51-0x0000026B59D70000-0x0000026B59D80000-memory.dmpFilesize
64KB
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memory/3364-20-0x0000026B59A30000-0x0000026B5AA30000-memory.dmpFilesize
16.0MB
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memory/3364-33-0x0000026B59A30000-0x0000026B5AA30000-memory.dmpFilesize
16.0MB
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memory/3364-35-0x0000026B59A10000-0x0000026B59A11000-memory.dmpFilesize
4KB
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memory/3364-41-0x0000026B59CB0000-0x0000026B59CC0000-memory.dmpFilesize
64KB
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memory/3364-43-0x0000026B59CE0000-0x0000026B59CF0000-memory.dmpFilesize
64KB
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memory/3364-46-0x0000026B59D00000-0x0000026B59D10000-memory.dmpFilesize
64KB
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memory/3364-55-0x0000026B59A30000-0x0000026B5AA30000-memory.dmpFilesize
16.0MB
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memory/3364-12-0x0000026B59A10000-0x0000026B59A11000-memory.dmpFilesize
4KB
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memory/3364-42-0x0000026B59D20000-0x0000026B59D30000-memory.dmpFilesize
64KB
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memory/3364-47-0x0000026B59D10000-0x0000026B59D20000-memory.dmpFilesize
64KB
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memory/3364-48-0x0000026B59D30000-0x0000026B59D40000-memory.dmpFilesize
64KB
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memory/3364-49-0x0000026B59D50000-0x0000026B59D60000-memory.dmpFilesize
64KB
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memory/3364-50-0x0000026B59D60000-0x0000026B59D70000-memory.dmpFilesize
64KB
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memory/3364-52-0x0000026B59A30000-0x0000026B5AA30000-memory.dmpFilesize
16.0MB
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memory/3364-53-0x0000026B59D80000-0x0000026B59D90000-memory.dmpFilesize
64KB
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memory/3364-4-0x0000026B59A30000-0x0000026B5AA30000-memory.dmpFilesize
16.0MB
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memory/3364-54-0x0000026B59D90000-0x0000026B59DA0000-memory.dmpFilesize
64KB
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memory/3364-44-0x0000026B59CF0000-0x0000026B59D00000-memory.dmpFilesize
64KB