Analysis
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max time kernel
145s -
max time network
105s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
31-12-2023 02:05
Behavioral task
behavioral1
Sample
23dbd5703268a7db67368a072c9ad7f3.jar
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
23dbd5703268a7db67368a072c9ad7f3.jar
Resource
win10v2004-20231222-en
General
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Target
23dbd5703268a7db67368a072c9ad7f3.jar
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Size
106KB
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MD5
23dbd5703268a7db67368a072c9ad7f3
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SHA1
e7ceb921ba16cac8dca122fb299c7bc9c9a8a318
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SHA256
6d588dde32764fd765cdc52f15eabb65262001a803befd327bfe62bb9010bc91
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SHA512
dd2cc644c6e0ff9715ea8355ca6e53dd0ecb7fabdc248c5abd798affec4b08d3c06d6cdd5ae5b79b749698995034c306f28dd482550a73ed68b5a474e8a72569
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SSDEEP
1536:Ifku/dVPqW+tDYpcSLOIRNTjm5SSikTXdEM0VvSX5sdDKVTiPuRWN6pqE:IzHfiMpcjajm5xikhEJcCY17MEpz
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\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\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\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\jvm.pdb java.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\server\symbols\dll\jvm.pdb java.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
java.exedescription pid process target process PID 4804 wrote to memory of 2220 4804 java.exe icacls.exe PID 4804 wrote to memory of 2220 4804 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\23dbd5703268a7db67368a072c9ad7f3.jar1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4804 -
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:2220
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
46B
MD55ad9012a291f66610082e44a8177022f
SHA14e2e54676988d00d34acd29a7cad133891a5b149
SHA256fc7c758ad7cb14478dd804eef3484c108731d235794ebe45009df13f950f1ec8
SHA512224ec4dfd956b7a39a6cbf022e8cd8bd5ac714d645c3e8e3785ec5f047e7c3d9b187415ba709f1ba0170db7e20a076b574dbc7beb992617748a0779b0e8da604