Analysis
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max time kernel
366s -
max time network
424s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 06:50
Static task
static1
Behavioral task
behavioral1
Sample
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
Resource
win10v2004-20221111-en
General
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Target
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe
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Size
153KB
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MD5
18438522a7d9dcba961e6137345ab028
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SHA1
7dfd34841ca7e87debcb8b8825e3dbda34fc666c
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SHA256
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0
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SHA512
b3352f0f4f2f7f71bc6f37d97fb199bcc2364fe12103305acf914357d56cb079148728197dee24b4149253cc73ec1cea80fbe8d0fdb9acebf353579167ce1f5b
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SSDEEP
1536:MRV6r3J5iQ271nb3jSek/f3kjW45A6K8wbkxscyKu/z5oDqxR3rxAEmDdoYD:Mqr3JiN38F9bkxHyKuPxRGEm2YD
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-191181821\\1tbd8v1.exe" ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2bb8fd1f70 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-191181821\\1tbd8v1.exe" ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe -
Drops desktop.ini file(s) 1 IoCs
Processes:
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exedescription ioc process File created C:\RECYCLER\S-1-5-21-0243556031-888888379-781862338-191181821\Desktop.ini ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe -
Modifies WinLogon 2 TTPs 1 IoCs
Processes:
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-191181821\\1tbd8v1.exe" ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exedescription pid process target process PID 4360 set thread context of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exeec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exepid process 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe 4564 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe 4564 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exeec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exedescription pid process target process PID 4360 wrote to memory of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe PID 4360 wrote to memory of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe PID 4360 wrote to memory of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe PID 4360 wrote to memory of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe PID 4360 wrote to memory of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe PID 4360 wrote to memory of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe PID 4360 wrote to memory of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe PID 4360 wrote to memory of 4564 4360 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe PID 4564 wrote to memory of 1132 4564 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe Explorer.EXE PID 4564 wrote to memory of 1132 4564 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe Explorer.EXE PID 4564 wrote to memory of 1132 4564 ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe Explorer.EXE
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe"C:\Users\Admin\AppData\Local\Temp\ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe"C:\Users\Admin\AppData\Local\Temp\ec421843b3b508a41a0f19a6d34e8a0cd2e5ac9714744363987369d08c4103d0.exe"3⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops desktop.ini file(s)
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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memory/4360-132-0x0000000000680000-0x0000000000683000-memory.dmpFilesize
12KB
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memory/4564-133-0x0000000000000000-mapping.dmp
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memory/4564-134-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB
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memory/4564-136-0x0000000000400000-0x0000000000405000-memory.dmpFilesize
20KB