Analysis
-
max time kernel
147s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240611-en -
resource tags
arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system -
submitted
15-06-2024 07:49
Behavioral task
behavioral1
Sample
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe
Resource
win10v2004-20240611-en
Behavioral task
behavioral2
Sample
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe
Resource
win11-20240611-en
General
-
Target
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe
-
Size
48KB
-
MD5
2b6bdd0a18e76a5df3a867a49f951125
-
SHA1
f0286405e8c8efb11ad4d30b29f32268ea747c09
-
SHA256
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f
-
SHA512
ef06c218ad5daf8437fda94c991a4ba86e3bdfd7ef55b64d8fdbe4657bb7acf512c42e7158cce17943a3aa437f96d294dae6eeb908d1f8acacdc4ddb25f27915
-
SSDEEP
768:zynb12Aw5J6HC4kq5Jp9bjAzhyY55J+NStcEeUlyqgZl4p67ahPC:Ub1MsHz3JDwhyWr+N95OTga6Z
Malware Config
Signatures
-
RunningRat
RunningRat is a remote access trojan first seen in 2018.
-
Sets DLL path for service in the registry 2 TTPs 1 IoCs
Processes:
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exedescription ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Simullatis\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\240610687.dll" b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe -
Executes dropped EXE 1 IoCs
Processes:
Simullatis.exepid Process 652 Simullatis.exe -
Loads dropped DLL 3 IoCs
Processes:
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exesvchost.exeSimullatis.exepid Process 4588 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe 3684 svchost.exe 652 Simullatis.exe -
Creates a Windows Service
-
Drops file in System32 directory 2 IoCs
Processes:
svchost.exedescription ioc Process File created C:\Windows\SysWOW64\Simullatis.exe svchost.exe File opened for modification C:\Windows\SysWOW64\Simullatis.exe svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Runs ping.exe 1 TTPs 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exepid Process 4588 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe 4588 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exedescription pid Process Token: SeIncBasePriorityPrivilege 4588 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exepid Process 4588 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.execmd.exesvchost.exedescription pid Process procid_target PID 4588 wrote to memory of 5036 4588 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe 81 PID 4588 wrote to memory of 5036 4588 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe 81 PID 4588 wrote to memory of 5036 4588 b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe 81 PID 5036 wrote to memory of 3840 5036 cmd.exe 83 PID 5036 wrote to memory of 3840 5036 cmd.exe 83 PID 5036 wrote to memory of 3840 5036 cmd.exe 83 PID 3684 wrote to memory of 652 3684 svchost.exe 85 PID 3684 wrote to memory of 652 3684 svchost.exe 85 PID 3684 wrote to memory of 652 3684 svchost.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe"C:\Users\Admin\AppData\Local\Temp\b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe"1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4588 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\b6e1c130d2b9f81e9457197727bb12e29093f29bf80408c2351bbad8cf821d4f.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:5036 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 13⤵
- Runs ping.exe
PID:3840
-
-
-
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "Simullatis"1⤵PID:1680
-
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "Simullatis"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3684 -
C:\Windows\SysWOW64\Simullatis.exeC:\Windows\system32\Simullatis.exe "c:\users\admin\appdata\local\temp\240610687.dll",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:652
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
25KB
MD5da3dd69dae8627334a8479f60eeb082e
SHA135c550902e5c0e6297785c367c2d638dda23404e
SHA25603bc8caca1bab6d14d7eac1dde331df3be91aec47c51c7ddf6646deab028d17e
SHA512b09e6175513d2e75119a67741f6d694722be511b317bd30efed30b4961dc945a97ce6baccc1282a412adaea31d60679183d3a15e7564c04c5dcad712650c5d3c
-
Filesize
40KB
MD522bb5bd901d8b25ac5b41edbb7d5053e
SHA18a935dd8d7e104fc553ff7e8b54a404f7b079334
SHA2568dcaeeebef9b9f3d41d295db145ffb3850f309d089c08125c7fa7034db5fd80e
SHA512cc3fb68fd6791a08e4a7d1a8db8d07cfcc8c9b9dceec10b53f0cb7ee86473303a19be4f23e379f84c59e02d0568e7c066e21cd1300f6032dac4ba52f609f62e7