Resubmissions
03-01-2022 15:51
220103-tagh5sbdh2 10Analysis
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max time kernel
300s -
max time network
300s -
platform
windows7_x64 -
resource
win7-20240221-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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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).
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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 v15
Replay Monitor
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Downloads
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Filesize
3KB
MD5b4cd27f2b37665f51eb9fe685ec1d373
SHA17f08febf0fdb7fc9f8bf35a10fb11e7de431abe0
SHA25691f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581
SHA512e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e
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Filesize
28B
MD5aeb5f76ea7684c039c9ab71817ecabab
SHA1e9ee739ca3711a7ac62ddf3866b2409047a06775
SHA256cf0879d7eb4cf166ba3deecfbb5a02f0f9d72a53fa97319c169dfea7b59cfcb1
SHA512fa50dcd73ba9a0b8652fbb184d22c5100394e235da8ef11e924ed476012da867b6798b97a2bae7cf4c854ecf8bee53f60485f73004de4ad4c14dafd77ac5c4df
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Filesize
676KB
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Filesize
676KB
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Filesize
676KB
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Filesize
676KB
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Filesize
676KB
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Filesize
676KB
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Filesize
808KB
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Filesize
808KB
-
Filesize
676KB
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Filesize
124KB
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Filesize
676KB
-
Filesize
676KB
-
Filesize
88KB
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Filesize
676KB
-
Filesize
676KB
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Filesize
676KB
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Filesize
676KB
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Filesize
676KB
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Filesize
676KB
-
Filesize
676KB
-
Filesize
676KB
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Filesize
272KB