Analysis
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max time kernel
149s -
max time network
167s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 14:33
Behavioral task
behavioral1
Sample
8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe
Resource
win10v2004-20220812-en
General
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Target
8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe
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Size
134KB
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MD5
f9084ae207fd883f37ac1b527290380d
-
SHA1
ae926055612709498ad0e782fedab37d16035b70
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SHA256
8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e
-
SHA512
4d5a25c00ddd1b499c0e7cec8799c37f0c32a18a364e345478f97761daa5e34b42c3ad45dc9b01d84d19221679dde79776b710798e873b5178bec2d4f0cb00e5
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SSDEEP
3072:aniXS4Rz+mbvUif3yRauPxshFUf8W9trM:znYLiuauPxsRYtY
Malware Config
Signatures
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Sets DLL path for service in the registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\FastUserSwitchingCompatibility\Parameters\ServiceDll = "C:\\Windows\\system32\\FastUserSwitchingCompatibility.dll" 8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe -
resource yara_rule behavioral2/memory/2120-132-0x0000000000DA0000-0x0000000000DC5000-memory.dmp upx behavioral2/files/0x000200000001e72a-134.dat upx behavioral2/files/0x000200000001e72a-135.dat upx behavioral2/memory/4192-137-0x0000000075090000-0x00000000750B5000-memory.dmp upx -
Loads dropped DLL 1 IoCs
pid Process 4192 svchost.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\6DE60BDC.tmp 8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe File opened for modification C:\Windows\SysWOW64\FastUserSwitchingCompatibility.dll 8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2120 8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe 2120 8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe"C:\Users\Admin\AppData\Local\Temp\8d658b22e7a86cc553773b91345274939e8a5049449415482628529137abb19e.exe"1⤵
- Sets DLL path for service in the registry
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
PID:2120
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k netsvcs -s FastUserSwitchingCompatibility1⤵
- Loads dropped DLL
PID:4192
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
720B
MD5464f8a9d0e9021495cd1b6dd187e599c
SHA1e4bd77050f3b91d9ed063ff3da04897778f09fb8
SHA2568c15e23b4501eb6c05c2074b7a72ddb803cf99a5ba46ded30d5e819d13b9f287
SHA5120fb667a5ab7af2a829118748bb917f690fcbc8a4572735e00fa855f1fc6ccff7f2c98b73704adf5062e9724f6421cb9adf3cf0a72e97b9a3e572dd9ee1bf6df1
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Filesize
134KB
MD565b720270d0a8bc16a70859343599472
SHA15547f094248e71d108b64b04415379bba30cf3b9
SHA256de1db49994ec206581d4569e728f860b2f9aa333604d9b6e176079216be1ebc4
SHA5120d808189d83befb46312af189501caa1264bae2718cf877ce4a1ab8bdcaa3672ceafb117a7f7332e826ce66643f1c1ac4e31030e63b9256f02f8164ea219b89f
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Filesize
134KB
MD565b720270d0a8bc16a70859343599472
SHA15547f094248e71d108b64b04415379bba30cf3b9
SHA256de1db49994ec206581d4569e728f860b2f9aa333604d9b6e176079216be1ebc4
SHA5120d808189d83befb46312af189501caa1264bae2718cf877ce4a1ab8bdcaa3672ceafb117a7f7332e826ce66643f1c1ac4e31030e63b9256f02f8164ea219b89f