Resubmissions
03-01-2022 15:51
220103-tagh5sbdh2 10Analysis
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max time kernel
600s -
max time network
576s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
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submitted
14-04-2024 13:36
General
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Target
kr.exe
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Size
786KB
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MD5
899dc9cc6e7516536bf5e816e8cecf55
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SHA1
6c07fc00ed2202798194749aa8037bb0ad38bb00
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SHA256
5f84ad4413ad6dcdea0cb3aa206cc4df29e1bad9d9598912c323c931d568ac90
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SHA512
445016f0e37ee3ecec319b73713d083711608c044f855e16268f89c88d460e95d85b79d375534ac6b7a4a0e869c49470d49b7e325ff0507c550107d593ae688c
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SSDEEP
12288:vyxPJa2s86jofrWEuxjcZxyPq8tf8sQ+PRtj3lDsmMHj3N6eiaFmhL+JigR:vyxPJ/s86szWEuKiflOmMDhPEhL+lR
Malware Config
Signatures
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Osiris
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Drops startup file 1 IoCs
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Executes dropped EXE 1 IoCs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\kr.exe"C:\Users\Admin\AppData\Local\Temp\kr.exe"1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exe"2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\GetX64BTIT.exeFilesize
3KB
MD5b4cd27f2b37665f51eb9fe685ec1d373
SHA17f08febf0fdb7fc9f8bf35a10fb11e7de431abe0
SHA25691f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581
SHA512e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e
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C:\Users\Admin\AppData\Local\Temp\x64btit.txtFilesize
28B
MD5a3cd95c9ec6c2113137fd0394e3654dc
SHA16e9358a3b71a65f375cc75f5b2f5172618e95c8e
SHA2569471b7b276e00e5cc8d308c4f26a6394e1ccf373272a520e901aff85be46131f
SHA5122c560a1521f651e83d81cf01274526ebeeebafafc823a07738031ae787910227db01e5ad9700e1c686da05dc4a84984b0761b9165b8c01db966a457fe6b8f50b
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memory/2864-6-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-25-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-5-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-1-0x0000000002620000-0x0000000002664000-memory.dmpFilesize
272KB
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memory/2864-7-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-3-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-8-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-14-0x00000000006D0000-0x000000000079A000-memory.dmpFilesize
808KB
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memory/2864-2-0x00000000006D0000-0x000000000079A000-memory.dmpFilesize
808KB
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memory/2864-16-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-17-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-4-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-27-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-30-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-32-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-34-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-39-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-42-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-45-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-46-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB
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memory/2864-50-0x0000000002CD0000-0x0000000002D79000-memory.dmpFilesize
676KB