Analysis
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max time kernel
140s -
max time network
143s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
05-12-2022 08:50
Static task
static1
Behavioral task
behavioral1
Sample
370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe
Resource
win10v2004-20221111-en
General
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Target
370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe
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Size
206KB
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MD5
715d77d37f744d1bbd9479de7ac06a79
-
SHA1
2d84f36b1abb9e71377a53f10d2497eca0c0557a
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SHA256
370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf
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SHA512
0ab61328282a4e54650819ae7e1c1d946c10a386f59fa44dd257b97ee6dcf8f494e4f9217b1c9d98cdd93883c76932b13cc66cdc1cb5dae5efa0f74ff47bd379
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SSDEEP
3072:rpIEOEjM1Bz+DSc0Si/T+ZgswKLa0efPsAjLxe18N5T1ZG:hDwrvnszloPskLoKfT1M
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 336 csrss.exe -
Deletes itself 1 IoCs
pid Process 584 cmd.exe -
Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
description ioc Destination IP 94.242.250.64 Destination IP 94.242.250.64 Destination IP 94.242.250.64 Destination IP 94.242.250.64 -
Drops desktop.ini file(s) 2 IoCs
description ioc Process File created \systemroot\assembly\GAC_64\Desktop.ini csrss.exe File created \systemroot\assembly\GAC_32\Desktop.ini csrss.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1340 set thread context of 584 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 27 -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 336 csrss.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1288 Explorer.EXE -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe Token: SeDebugPrivilege 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1288 Explorer.EXE 1288 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1288 Explorer.EXE 1288 Explorer.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 336 csrss.exe 1288 Explorer.EXE -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1340 wrote to memory of 1288 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 17 PID 1340 wrote to memory of 336 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 6 PID 1340 wrote to memory of 584 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 27 PID 1340 wrote to memory of 584 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 27 PID 1340 wrote to memory of 584 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 27 PID 1340 wrote to memory of 584 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 27 PID 1340 wrote to memory of 584 1340 370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe 27 PID 336 wrote to memory of 884 336 csrss.exe 23
Processes
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C:\Windows\system32\csrss.exe%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=161⤵
- Executes dropped EXE
- Drops desktop.ini file(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:336
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of UnmapMainImage
PID:1288 -
C:\Users\Admin\AppData\Local\Temp\370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe"C:\Users\Admin\AppData\Local\Temp\370ea2fe5d61b11939df775ae7fbca9983ecadb660a35c8d2ae87991dc9a76bf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1340 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe"3⤵
- Deletes itself
PID:584
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-
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs1⤵PID:884
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
-
Filesize
52KB
MD56bf2039986af96d98e08824ac6c383fd
SHA10bb6384656a96943cb427baa92446f987219a02e
SHA256a3e03454ff636f4cdd0a95b856ea9e7857cd3ce0fd2bc6d528ab45781349103f
SHA512fae378badcd6b45d69705d11fe5feb2d9f93fa444249c13aff9b150359ffdbcfe2b160731e193d3e19b6eef18d2ef01de41549a1c2bbdf59501f901511f9068e
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Filesize
2KB
MD59f0aa57f94336c464ba7709161273de3
SHA1bbda3bb88b60aff9c1b8a342e82355b1ab4f778e
SHA256e2323a5e3be12a5ba52667450c9e57686129d99db2fbce8ba0702438e095b56f
SHA512d2e0e4ae1845ccf8499d390b382fd5319e60921395f23464fc016eb961bb0ff2b9e91c0a05e362b9afe2dae41044624280c8a6c52e7a75487d12452cae56e59b
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Filesize
52KB
MD56bf2039986af96d98e08824ac6c383fd
SHA10bb6384656a96943cb427baa92446f987219a02e
SHA256a3e03454ff636f4cdd0a95b856ea9e7857cd3ce0fd2bc6d528ab45781349103f
SHA512fae378badcd6b45d69705d11fe5feb2d9f93fa444249c13aff9b150359ffdbcfe2b160731e193d3e19b6eef18d2ef01de41549a1c2bbdf59501f901511f9068e