Analysis
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max time kernel
128s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
02-08-2022 05:06
Behavioral task
behavioral1
Sample
c.exe
Resource
win7-20220715-en
Behavioral task
behavioral2
Sample
c.exe
Resource
win10v2004-20220721-en
General
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Target
c.exe
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Size
68KB
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MD5
e1f2bab0f7d22fed80ad59fd5c164dc1
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SHA1
586afa9c3bdbbd0a326b569dcab9363f1278e38c
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SHA256
d759e1ec1af4392131aa3aa7f8446f8078d16bb3405b12ed62f123aca95c969c
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SHA512
a50ddedff971b2ae6d9d9fc5669f2fc9cb94494fa647c2ea4ea2072b5b5c3c6a06e766774656294265cc8356d1c1dc50dc0f6896868c01ed30cd633cd1048551
Malware Config
Signatures
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RunningRat
RunningRat is a remote access trojan first seen in 2018.
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RunningRat payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1380-130-0x0000000010000000-0x000000001000F000-memory.dmp family_runningrat -
Executes dropped EXE 1 IoCs
Processes:
WindowsSystem32.exepid process 2296 WindowsSystem32.exe -
Sets DLL path for service in the registry 2 TTPs 1 IoCs
Processes:
c.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\WindowsSystem32\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\240573296.dll" c.exe -
Loads dropped DLL 4 IoCs
Processes:
c.exesvchost.exeWindowsSystem32.exepid process 1380 c.exe 1380 c.exe 4816 svchost.exe 2296 WindowsSystem32.exe -
Drops file in System32 directory 3 IoCs
Processes:
c.exesvchost.exedescription ioc process File opened for modification C:\Windows\SysWOW64\ini.ini c.exe File created C:\Windows\SysWOW64\WindowsSystem32.exe svchost.exe File opened for modification C:\Windows\SysWOW64\WindowsSystem32.exe svchost.exe -
Suspicious use of WriteProcessMemory 3 IoCs
Processes:
svchost.exedescription pid process target process PID 4816 wrote to memory of 2296 4816 svchost.exe WindowsSystem32.exe PID 4816 wrote to memory of 2296 4816 svchost.exe WindowsSystem32.exe PID 4816 wrote to memory of 2296 4816 svchost.exe WindowsSystem32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\c.exe"C:\Users\Admin\AppData\Local\Temp\c.exe"1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
PID:1380
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "WindowsSystem32"1⤵PID:2704
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "WindowsSystem32"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Windows\SysWOW64\WindowsSystem32.exeC:\Windows\system32\WindowsSystem32.exe "c:\users\admin\appdata\local\temp\240573296.dll",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2296
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
37KB
MD55237af4ad711204e8f3cb7aa48b5b50a
SHA1beac930860f76be9c529bdd949b88fb4827197c4
SHA2567c62786ad6f16a3b63c0fd5809d58552b6de4c935d01f05048484248120813c1
SHA51220f90a791ae191096cb1dadcb96f01c9bbd38a3d0d21a3e6812f4a5811f46ccb80e5f10f2a59d7af23cd35557630b5cbf19d9286646a28673745efe5bf1228de
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Filesize
37KB
MD55237af4ad711204e8f3cb7aa48b5b50a
SHA1beac930860f76be9c529bdd949b88fb4827197c4
SHA2567c62786ad6f16a3b63c0fd5809d58552b6de4c935d01f05048484248120813c1
SHA51220f90a791ae191096cb1dadcb96f01c9bbd38a3d0d21a3e6812f4a5811f46ccb80e5f10f2a59d7af23cd35557630b5cbf19d9286646a28673745efe5bf1228de
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Filesize
37KB
MD55237af4ad711204e8f3cb7aa48b5b50a
SHA1beac930860f76be9c529bdd949b88fb4827197c4
SHA2567c62786ad6f16a3b63c0fd5809d58552b6de4c935d01f05048484248120813c1
SHA51220f90a791ae191096cb1dadcb96f01c9bbd38a3d0d21a3e6812f4a5811f46ccb80e5f10f2a59d7af23cd35557630b5cbf19d9286646a28673745efe5bf1228de
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Filesize
37KB
MD55237af4ad711204e8f3cb7aa48b5b50a
SHA1beac930860f76be9c529bdd949b88fb4827197c4
SHA2567c62786ad6f16a3b63c0fd5809d58552b6de4c935d01f05048484248120813c1
SHA51220f90a791ae191096cb1dadcb96f01c9bbd38a3d0d21a3e6812f4a5811f46ccb80e5f10f2a59d7af23cd35557630b5cbf19d9286646a28673745efe5bf1228de
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Filesize
60KB
MD5889b99c52a60dd49227c5e485a016679
SHA18fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA2566cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA51208933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
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Filesize
60KB
MD5889b99c52a60dd49227c5e485a016679
SHA18fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA2566cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA51208933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
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Filesize
37KB
MD55237af4ad711204e8f3cb7aa48b5b50a
SHA1beac930860f76be9c529bdd949b88fb4827197c4
SHA2567c62786ad6f16a3b63c0fd5809d58552b6de4c935d01f05048484248120813c1
SHA51220f90a791ae191096cb1dadcb96f01c9bbd38a3d0d21a3e6812f4a5811f46ccb80e5f10f2a59d7af23cd35557630b5cbf19d9286646a28673745efe5bf1228de