Resubmissions
03-01-2022 15:51
220103-tagh5sbdh2 10Analysis
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max time kernel
1800s -
max time network
1559s -
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
28B
MD58394fa24e87ead2d7ed97c24415695ef
SHA1a264943471cc7f0d00db7ff094e462bf861b34b0
SHA256e74e694b9212fc631f7d29dad03e6a6245a0fd02502a00940137569936d3d124
SHA512320fa2ad8fc0e8d095421db0e75864156056e0c51587b82dc52c3f45e47171e5a0f314a972b6d0a2af5e7b3690eee6ababe9fdfc91e59fa34729c8e862c5b6ed
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Filesize
3KB
MD5b4cd27f2b37665f51eb9fe685ec1d373
SHA17f08febf0fdb7fc9f8bf35a10fb11e7de431abe0
SHA25691f1023142b7babf6ff75dad984c2a35bde61dc9e61f45483f4b65008576d581
SHA512e025f65224d78f5fd0abebe281ac0d44a385b2641e367cf39eed6aefada20a112ac47f94d7febc4424f1db6a6947bac16ff83ef93a8d745b3cddfdbe64c49a1e
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Filesize
124KB
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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
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Filesize
88KB
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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
676KB
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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
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Filesize
676KB
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Filesize
256KB