Analysis
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max time kernel
5s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07-11-2022 10:53
Static task
static1
Behavioral task
behavioral1
Sample
b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe
Resource
win10v2004-20220812-en
General
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Target
b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe
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Size
36KB
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MD5
08282aa746414124f37ed4887f5fbd86
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SHA1
eb20a16550a6b816f058103be555f695a546a908
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SHA256
b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3
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SHA512
f24f1391e52bc76eab535391b17dfb63eb9bd8858b33bcb0ff114b0db583ac5b8139acd65d8761b99d54255d9fc1287acda683708d2af539a5be4bf65b68649f
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SSDEEP
384:/TnZytCPvOQoIbxc2rXwv75ZVrUB4mPKNsrlk/FaIXumjKb/fcUssDRQsY54MHu:/1ytcvOQoIXgDlu3PKNsyMIem02sp0u
Malware Config
Signatures
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Possible privilege escalation attempt 2 IoCs
Processes:
takeown.exeicacls.exepid process 1668 takeown.exe 1276 icacls.exe -
Modifies file permissions 1 TTPs 2 IoCs
Processes:
takeown.exeicacls.exepid process 1668 takeown.exe 1276 icacls.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exedescription ioc process Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\YNF = "C:\\Windows\\system32\\orpis.exe" b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe -
Drops file in System32 directory 2 IoCs
Processes:
b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exedescription ioc process File opened for modification C:\Windows\SysWOW64\orpis.exe b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe File created C:\Windows\SysWOW64\orpis.exe b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exepid process 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exedescription pid process target process PID 804 wrote to memory of 1668 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe takeown.exe PID 804 wrote to memory of 1668 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe takeown.exe PID 804 wrote to memory of 1668 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe takeown.exe PID 804 wrote to memory of 1668 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe takeown.exe PID 804 wrote to memory of 1276 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe icacls.exe PID 804 wrote to memory of 1276 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe icacls.exe PID 804 wrote to memory of 1276 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe icacls.exe PID 804 wrote to memory of 1276 804 b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe icacls.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe"C:\Users\Admin\AppData\Local\Temp\b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\takeown.exeC:\Windows\system32\takeown.exe /f "C:\Windows\system32\orpis.exe"2⤵
- Possible privilege escalation attempt
- Modifies file permissions
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C:\Windows\SysWOW64\icacls.exeC:\Windows\system32\icacls.exe "C:\Windows\system32\orpis.exe" /grant Users:F2⤵
- Possible privilege escalation attempt
- Modifies file permissions
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Windows\SysWOW64\orpis.exeFilesize
36KB
MD508282aa746414124f37ed4887f5fbd86
SHA1eb20a16550a6b816f058103be555f695a546a908
SHA256b96d8ce3c57cd4882ea75c04d20c1ac7e0792b553c61188ea8c955bc97572ac3
SHA512f24f1391e52bc76eab535391b17dfb63eb9bd8858b33bcb0ff114b0db583ac5b8139acd65d8761b99d54255d9fc1287acda683708d2af539a5be4bf65b68649f
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memory/1276-57-0x0000000000000000-mapping.dmp
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memory/1668-56-0x0000000000000000-mapping.dmp