Analysis
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max time kernel
148s -
max time network
133s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
06-10-2021 08:13
Static task
static1
General
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Target
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe
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Size
60KB
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MD5
533fe2e3602ede540e261fef7e04b711
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SHA1
945e2931b4ca160f9f3025e740cc19e75db25bf6
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SHA256
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215
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SHA512
c43c0587b660b8f3a03d04e04c953c7ba5375dfec6f23de71e0bab7888e154216a8c38b9f422d854ef14483b6fac93874e0d5483634c7d6d6497088268453184
Malware Config
Extracted
Family
xpertrat
Version
3.0.10
Botnet
Test
C2
kapasky-antivirus.firewall-gateway.net:4000
Mutex
L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0
Signatures
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XpertRAT Core Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/4084-124-0x0000000000400000-0x0000000000443000-memory.dmp xpertrat behavioral1/memory/4084-125-0x0000000000401364-mapping.dmp xpertrat -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe -
Deletes itself 1 IoCs
Processes:
notepad.exepid process 968 notepad.exe -
Processes:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
iexplore.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run iexplore.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe" iexplore.exe -
Processes:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe -
Suspicious use of SetThreadContext 2 IoCs
Processes:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exedescription pid process target process PID 2352 set thread context of 3020 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe PID 3020 set thread context of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exepid process 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exeiexplore.exedescription pid process Token: SeDebugPrivilege 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe Token: SeDebugPrivilege 4084 iexplore.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exeiexplore.exepid process 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 4084 iexplore.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exeiexplore.exedescription pid process target process PID 2352 wrote to memory of 3020 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe PID 2352 wrote to memory of 3020 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe PID 2352 wrote to memory of 3020 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe PID 2352 wrote to memory of 3020 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe PID 2352 wrote to memory of 3020 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe PID 2352 wrote to memory of 3020 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe PID 2352 wrote to memory of 3020 2352 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe PID 3020 wrote to memory of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe PID 3020 wrote to memory of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe PID 3020 wrote to memory of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe PID 3020 wrote to memory of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe PID 3020 wrote to memory of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe PID 3020 wrote to memory of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe PID 3020 wrote to memory of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe PID 3020 wrote to memory of 4084 3020 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe iexplore.exe PID 4084 wrote to memory of 968 4084 iexplore.exe notepad.exe PID 4084 wrote to memory of 968 4084 iexplore.exe notepad.exe PID 4084 wrote to memory of 968 4084 iexplore.exe notepad.exe PID 4084 wrote to memory of 968 4084 iexplore.exe notepad.exe -
System policy modification 1 TTPs 1 IoCs
Processes:
1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe"C:\Users\Admin\AppData\Local\Temp\1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2352 -
C:\Users\Admin\AppData\Local\Temp\1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exeC:\Users\Admin\AppData\Local\Temp\1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe2⤵
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3020 -
C:\Program Files (x86)\Internet Explorer\iexplore.exeC:\Users\Admin\AppData\Local\Temp\1a55b87ef779fe996b8aef3e98ea9252a5ce3a02d3a0a87000554bd41033a215.exe3⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4084 -
C:\Windows\SysWOW64\notepad.exenotepad.exe4⤵
- Deletes itself
PID:968