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Analysis
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max time kernel
51s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
16/06/2024, 11:38
Static task
static1
Behavioral task
behavioral1
Sample
2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe
Resource
win10v2004-20240508-en
General
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Target
2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe
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Size
174KB
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MD5
6ee709ee51cc7adc5f01acf44eb7b4c9
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SHA1
1c1ae7798f31fd194cdc844a3977fb90a9d7b593
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SHA256
5fd062ba8c0642cb519ea307fd3a4d9ed710328547de1ddb3371c18fbd46f063
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SHA512
c04586d5295f44af497c7af453e20ddcebea0d9d45ff72ba87791b2d677d53e108f4793e1eebc125240dea88bd3f539b9446bcf692f6cd7b76f3cb243bdedd4f
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SSDEEP
3072:ZRpAyazIliazTx6DFfblDKsSBwUnQpS3FtFNqTqaz3zT59mi6Ue:xZ8azduF58wUQpSVtFoTquzKi4
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2944 G0fSq9ab8eGIoJ1.exe 3268 CTS.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" 2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" CTS.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\CTS.exe 2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe File created C:\Windows\CTS.exe CTS.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 372 2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe Token: SeDebugPrivilege 3268 CTS.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 372 wrote to memory of 2944 372 2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe 82 PID 372 wrote to memory of 2944 372 2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe 82 PID 372 wrote to memory of 3268 372 2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe 84 PID 372 wrote to memory of 3268 372 2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe 84 PID 372 wrote to memory of 3268 372 2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe"C:\Users\Admin\AppData\Local\Temp\2024-06-16_6ee709ee51cc7adc5f01acf44eb7b4c9_bkransomware.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:372 -
C:\Users\Admin\AppData\Local\Temp\G0fSq9ab8eGIoJ1.exeC:\Users\Admin\AppData\Local\Temp\G0fSq9ab8eGIoJ1.exe2⤵
- Executes dropped EXE
PID:2944
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C:\Windows\CTS.exe"C:\Windows\CTS.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3268
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
394KB
MD5db6295bb91d09e135bbeb300752bb896
SHA1bb6e14303be785d7c017cecfadd8b5e788e0c692
SHA2560578cc889549f5218e4e5ef692023dd176cdf61f36dadfc9a6ad7a96e8dd6fd6
SHA512e9c961aa171de5ed5feb9ebb6e7884a3f53efdebf490da45af86d9a79bec0a594762bbeae8cfb119f362e50bc47bba3f55b7c49ad294b149fac4850c25d4bd96
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Filesize
103KB
MD5e4d92b5ef0a285e516346f7cfdb4e28a
SHA16f8ef7957e10b7a05e05a9627c6694787105af24
SHA2569b3e52a8c3bb12380d3e87f470f76ef48a1eb570bbc83de17b7ed10aee398f5d
SHA512b65cd1855a73ab028482e2dc183b61874f45373e1f9cae3b14ca9fe8bb25172117b37594c052df5ee4d7dfae36199e7c7139b18afb61153fe3aac0feaefa705a
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Filesize
71KB
MD5f9d4ab0a726adc9b5e4b7d7b724912f1
SHA13d42ca2098475924f70ee4a831c4f003b4682328
SHA256b43be87e8586ca5e995979883468f3b3d9dc5212fbfd0b5f3341a5b7c56e0fbc
SHA51222a5f0e4b2716244e978ee50771823926f86baf0382ece48fd049f039cf77b5eb0691d83c61148903cff081fdbea969f47b8ed521647717f42bbed5c64552432