Analysis
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max time kernel
150s -
max time network
164s -
submitted
01-01-1970 00:00
Static task
static1
Behavioral task
behavioral1
Sample
95605c11d4b59cb6b8a4661d91dd19de.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
95605c11d4b59cb6b8a4661d91dd19de.exe
Resource
win10-en-20210920
General
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Target
95605c11d4b59cb6b8a4661d91dd19de.exe
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Size
164KB
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MD5
95605c11d4b59cb6b8a4661d91dd19de
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SHA1
238ed88b706987043038b7c965395b69bc290219
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SHA256
d55978d37f1031b8b0e9811b9375b423d1cda7edfdef2e325f2861e829e5c8cc
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SHA512
d542f49787cfc52cd40b43b50e4ff967b240503788a6454c3a94d59f904f78a53dde9c497704904f7cba8361ba8cc740ce35b5a45172955c583650cfb8bab5bc
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
Client.exepid process 1048 Client.exe -
Drops startup file 2 IoCs
Processes:
Client.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Client.exe Client.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Client.exe Client.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Client.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\Client.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\Client.exe\" .." Client.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Client.exe = "\"C:\\Users\\Admin\\AppData\\Roaming\\Client.exe\" .." Client.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 1264 schtasks.exe 3584 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 35 IoCs
Processes:
Client.exedescription pid process Token: SeDebugPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe Token: 33 1048 Client.exe Token: SeIncBasePriorityPrivilege 1048 Client.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
95605c11d4b59cb6b8a4661d91dd19de.exeClient.exedescription pid process target process PID 3364 wrote to memory of 3352 3364 95605c11d4b59cb6b8a4661d91dd19de.exe schtasks.exe PID 3364 wrote to memory of 3352 3364 95605c11d4b59cb6b8a4661d91dd19de.exe schtasks.exe PID 3364 wrote to memory of 3352 3364 95605c11d4b59cb6b8a4661d91dd19de.exe schtasks.exe PID 3364 wrote to memory of 1264 3364 95605c11d4b59cb6b8a4661d91dd19de.exe schtasks.exe PID 3364 wrote to memory of 1264 3364 95605c11d4b59cb6b8a4661d91dd19de.exe schtasks.exe PID 3364 wrote to memory of 1264 3364 95605c11d4b59cb6b8a4661d91dd19de.exe schtasks.exe PID 3364 wrote to memory of 1048 3364 95605c11d4b59cb6b8a4661d91dd19de.exe Client.exe PID 3364 wrote to memory of 1048 3364 95605c11d4b59cb6b8a4661d91dd19de.exe Client.exe PID 3364 wrote to memory of 1048 3364 95605c11d4b59cb6b8a4661d91dd19de.exe Client.exe PID 1048 wrote to memory of 3972 1048 Client.exe schtasks.exe PID 1048 wrote to memory of 3972 1048 Client.exe schtasks.exe PID 1048 wrote to memory of 3972 1048 Client.exe schtasks.exe PID 1048 wrote to memory of 3584 1048 Client.exe schtasks.exe PID 1048 wrote to memory of 3584 1048 Client.exe schtasks.exe PID 1048 wrote to memory of 3584 1048 Client.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\95605c11d4b59cb6b8a4661d91dd19de.exe"C:\Users\Admin\AppData\Local\Temp\95605c11d4b59cb6b8a4661d91dd19de.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /Delete /tn NYAN /F2⤵
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\95605c11d4b59cb6b8a4661d91dd19de.exe" /sc minute /mo 12⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Roaming\Client.exe"C:\Users\Admin\AppData\Roaming\Client.exe"2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /Delete /tn NYAN /F3⤵
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Roaming\Client.exe" /sc minute /mo 13⤵
- Creates scheduled task(s)
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\Client.exeMD5
95605c11d4b59cb6b8a4661d91dd19de
SHA1238ed88b706987043038b7c965395b69bc290219
SHA256d55978d37f1031b8b0e9811b9375b423d1cda7edfdef2e325f2861e829e5c8cc
SHA512d542f49787cfc52cd40b43b50e4ff967b240503788a6454c3a94d59f904f78a53dde9c497704904f7cba8361ba8cc740ce35b5a45172955c583650cfb8bab5bc
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C:\Users\Admin\AppData\Roaming\Client.exeMD5
95605c11d4b59cb6b8a4661d91dd19de
SHA1238ed88b706987043038b7c965395b69bc290219
SHA256d55978d37f1031b8b0e9811b9375b423d1cda7edfdef2e325f2861e829e5c8cc
SHA512d542f49787cfc52cd40b43b50e4ff967b240503788a6454c3a94d59f904f78a53dde9c497704904f7cba8361ba8cc740ce35b5a45172955c583650cfb8bab5bc
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memory/1048-118-0x0000000000000000-mapping.dmp
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memory/1048-123-0x0000000002630000-0x0000000002631000-memory.dmpFilesize
4KB
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memory/1264-117-0x0000000000000000-mapping.dmp
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memory/3352-116-0x0000000000000000-mapping.dmp
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memory/3364-115-0x0000000001190000-0x0000000001191000-memory.dmpFilesize
4KB
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memory/3584-122-0x0000000000000000-mapping.dmp
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memory/3972-121-0x0000000000000000-mapping.dmp