Resubmissions
03-01-2022 15:51
220103-tagh5sbdh2 10Analysis
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max time kernel
151s -
max time network
153s -
platform
windows7_x64 -
resource
win7-en-20211208 -
submitted
03-01-2022 15:51
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
Score
10/10
Malware Config
Signatures
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Osiris
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Executes dropped EXE 1 IoCs
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Drops startup file 1 IoCs
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Loads dropped DLL 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). Likely ransomware behaviour.
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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 4 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
- Loads dropped DLL
- 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
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
8KB
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Filesize
808KB
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Filesize
12.3MB
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Filesize
268KB
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Filesize
88KB
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Filesize
124KB