Analysis
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max time kernel
141s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
17-08-2022 06:06
Behavioral task
behavioral1
Sample
b1a54aa41872cf32808a7f8453edad44.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
b1a54aa41872cf32808a7f8453edad44.exe
Resource
win10v2004-20220812-en
General
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Target
b1a54aa41872cf32808a7f8453edad44.exe
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Size
112KB
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MD5
b1a54aa41872cf32808a7f8453edad44
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SHA1
b039946b52f84142cf2addab8181564abb5f6550
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SHA256
2c7de522a0b7230acc514fecdfeaf05e9578fded236ad1337551fd42d4ac7c49
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SHA512
923760294a8a8bd4b274bf64181c98d6b8ce01930280b1e8d1721c66c3cf63d6d3423fe28025c172264b6f1ba38406e49a8830e17d759a26eaf94783b9d4adae
Malware Config
Signatures
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Gh0st RAT payload 4 IoCs
Processes:
resource yara_rule C:\Windows\Fonts\240557796.dll family_gh0strat C:\Windows\Fonts\240557796.dll family_gh0strat \??\c:\windows\fonts\240557796.dll family_gh0strat C:\Windows\Fonts\240557796.dll family_gh0strat -
Executes dropped EXE 1 IoCs
Processes:
serivces.exepid process 4924 serivces.exe -
Sets DLL path for service in the registry 2 TTPs 1 IoCs
Processes:
b1a54aa41872cf32808a7f8453edad44.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\serivces\Parameters\ServiceDll = "C:\\Windows\\fonts\\240557796.dll" b1a54aa41872cf32808a7f8453edad44.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
b1a54aa41872cf32808a7f8453edad44.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Control Panel\International\Geo\Nation b1a54aa41872cf32808a7f8453edad44.exe -
Loads dropped DLL 3 IoCs
Processes:
b1a54aa41872cf32808a7f8453edad44.exesvchost.exeserivces.exepid process 3352 b1a54aa41872cf32808a7f8453edad44.exe 2320 svchost.exe 4924 serivces.exe -
Creates a Windows Service
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Drops file in System32 directory 2 IoCs
Processes:
svchost.exedescription ioc process File created C:\Windows\SysWOW64\serivces.exe svchost.exe File opened for modification C:\Windows\SysWOW64\serivces.exe svchost.exe -
Drops file in Windows directory 1 IoCs
Processes:
b1a54aa41872cf32808a7f8453edad44.exedescription ioc process File created C:\Windows\fonts\240557796.dll b1a54aa41872cf32808a7f8453edad44.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
b1a54aa41872cf32808a7f8453edad44.exepid process 3352 b1a54aa41872cf32808a7f8453edad44.exe 3352 b1a54aa41872cf32808a7f8453edad44.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
b1a54aa41872cf32808a7f8453edad44.exedescription pid process Token: SeIncBasePriorityPrivilege 3352 b1a54aa41872cf32808a7f8453edad44.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
b1a54aa41872cf32808a7f8453edad44.exepid process 3352 b1a54aa41872cf32808a7f8453edad44.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
b1a54aa41872cf32808a7f8453edad44.execmd.exesvchost.exedescription pid process target process PID 3352 wrote to memory of 2624 3352 b1a54aa41872cf32808a7f8453edad44.exe cmd.exe PID 3352 wrote to memory of 2624 3352 b1a54aa41872cf32808a7f8453edad44.exe cmd.exe PID 3352 wrote to memory of 2624 3352 b1a54aa41872cf32808a7f8453edad44.exe cmd.exe PID 2624 wrote to memory of 3308 2624 cmd.exe PING.EXE PID 2624 wrote to memory of 3308 2624 cmd.exe PING.EXE PID 2624 wrote to memory of 3308 2624 cmd.exe PING.EXE PID 2320 wrote to memory of 4924 2320 svchost.exe serivces.exe PID 2320 wrote to memory of 4924 2320 svchost.exe serivces.exe PID 2320 wrote to memory of 4924 2320 svchost.exe serivces.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b1a54aa41872cf32808a7f8453edad44.exe"C:\Users\Admin\AppData\Local\Temp\b1a54aa41872cf32808a7f8453edad44.exe"1⤵
- Sets DLL path for service in the registry
- Checks computer location settings
- Loads dropped DLL
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3352 -
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\b1a54aa41872cf32808a7f8453edad44.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:2624 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 13⤵
- Runs ping.exe
PID:3308
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "serivces"1⤵PID:5004
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "serivces"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2320 -
C:\Windows\SysWOW64\serivces.exeC:\Windows\system32\serivces.exe "c:\windows\fonts\240557796.dll",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4924
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
37KB
MD5bea37c754138109355b34f1ebc6defc5
SHA13efd45599dd8b2cb8034453a63d2c919eeded3e6
SHA25608c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292
SHA512683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d
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Filesize
37KB
MD5bea37c754138109355b34f1ebc6defc5
SHA13efd45599dd8b2cb8034453a63d2c919eeded3e6
SHA25608c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292
SHA512683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d
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Filesize
37KB
MD5bea37c754138109355b34f1ebc6defc5
SHA13efd45599dd8b2cb8034453a63d2c919eeded3e6
SHA25608c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292
SHA512683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d
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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
MD5bea37c754138109355b34f1ebc6defc5
SHA13efd45599dd8b2cb8034453a63d2c919eeded3e6
SHA25608c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292
SHA512683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d