Analysis
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max time kernel
150s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
27/11/2022, 11:16
Static task
static1
Behavioral task
behavioral1
Sample
9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe
Resource
win10v2004-20221111-en
General
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Target
9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe
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Size
174KB
-
MD5
55bc615b4885d265c5fce8a280d844df
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SHA1
27b8b209ee9e22e1c2637787f4e36cd103b90076
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SHA256
9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c
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SHA512
86dcf1beaed06e9af0eba73b47837e46dc560be70fc997d4523a71320abf117e46a9b7886d4464ff6a55ec617ebf71843f5a170b5ee25f9d3dac6d57250c12d5
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SSDEEP
3072:CeG0ei5lbgGiyGRYb+T2aja2c1CUzcgDOf8Gb3+m/j2:xGebgSGR/fdc1NzUf8c+
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 332 csrss.exe -
Deletes itself 1 IoCs
pid Process 2040 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 900 set thread context of 2040 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 27 -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 332 csrss.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe Token: SeDebugPrivilege 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1192 Explorer.EXE 1192 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
pid Process 1192 Explorer.EXE 1192 Explorer.EXE -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 332 csrss.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 900 wrote to memory of 1192 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 20 PID 900 wrote to memory of 332 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 6 PID 900 wrote to memory of 2040 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 27 PID 900 wrote to memory of 2040 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 27 PID 900 wrote to memory of 2040 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 27 PID 900 wrote to memory of 2040 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 27 PID 900 wrote to memory of 2040 900 9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe 27 PID 332 wrote to memory of 872 332 csrss.exe 11
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:332
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs1⤵PID:872
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C:\Users\Admin\AppData\Local\Temp\9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe"C:\Users\Admin\AppData\Local\Temp\9d5368372dbb10b4d8ce041ff82dcde986a64f3e30eefdd6707dd7d1a781f57c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Deletes itself
PID:2040
-
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1192
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
-
Filesize
52KB
MD56bf2039986af96d98e08824ac6c383fd
SHA10bb6384656a96943cb427baa92446f987219a02e
SHA256a3e03454ff636f4cdd0a95b856ea9e7857cd3ce0fd2bc6d528ab45781349103f
SHA512fae378badcd6b45d69705d11fe5feb2d9f93fa444249c13aff9b150359ffdbcfe2b160731e193d3e19b6eef18d2ef01de41549a1c2bbdf59501f901511f9068e
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Filesize
2KB
MD5ed34ce2cae141ece41fda406dc9e4a22
SHA1114321217070cd71de3803bd74d776f3bda20cec
SHA256111304d1cdff92ab9dbfb2e96e007c543acdb707c829ef473178521956212b7c
SHA512b935d4bd19aa35f87f32270663d9091ec253aae043349121251a091fa46074505607b29b8f39445d311af79f8f24ffaf09c94892729d4f9c2e653873cff6a5ca
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Filesize
52KB
MD56bf2039986af96d98e08824ac6c383fd
SHA10bb6384656a96943cb427baa92446f987219a02e
SHA256a3e03454ff636f4cdd0a95b856ea9e7857cd3ce0fd2bc6d528ab45781349103f
SHA512fae378badcd6b45d69705d11fe5feb2d9f93fa444249c13aff9b150359ffdbcfe2b160731e193d3e19b6eef18d2ef01de41549a1c2bbdf59501f901511f9068e