Analysis
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max time kernel
103s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20250314-en -
resource tags
arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system -
submitted
27/03/2025, 16:03
Static task
static1
Behavioral task
behavioral1
Sample
ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe
Resource
win10v2004-20250314-en
General
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Target
ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe
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Size
975KB
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MD5
1d51a399962939a06396a4b4944eb33c
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SHA1
c7f4dfb774d0998df523e4c799f32ea4560be3ea
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SHA256
ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9
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SHA512
5a5ca673ade811e2ccaec97ed89d5cbb8b4ef361eef9de2aca3f7631ac197995d526fbff07a3e1466dc0c55e1e8db612cfbb8d78e7047f141cae376c27fb4cda
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SSDEEP
24576:1u6J33O0c+JY5UZ+XC0kGso6FaUQGdLiPB8fWY:Xu0c++OCvkGs9FaUQbPBnY
Malware Config
Signatures
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Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\surmit.vbs surmit.exe -
Executes dropped EXE 1 IoCs
pid Process 224 surmit.exe -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/files/0x00070000000240f0-9.dat autoit_exe -
Program crash 1 IoCs
pid pid_target Process procid_target 3804 224 WerFault.exe 90 -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language surmit.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe -
Suspicious use of FindShellTrayWindow 4 IoCs
pid Process 4700 ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe 4700 ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe 224 surmit.exe 224 surmit.exe -
Suspicious use of SendNotifyMessage 4 IoCs
pid Process 4700 ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe 4700 ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe 224 surmit.exe 224 surmit.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4700 wrote to memory of 224 4700 ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe 90 PID 4700 wrote to memory of 224 4700 ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe 90 PID 4700 wrote to memory of 224 4700 ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe 90 PID 224 wrote to memory of 3608 224 surmit.exe 91 PID 224 wrote to memory of 3608 224 surmit.exe 91 PID 224 wrote to memory of 3608 224 surmit.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe"C:\Users\Admin\AppData\Local\Temp\ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4700 -
C:\Users\Admin\AppData\Local\untrashed\surmit.exe"C:\Users\Admin\AppData\Local\Temp\ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe"2⤵
- Drops startup file
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:224 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9.exe"3⤵PID:3608
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 224 -s 6963⤵
- Program crash
PID:3804
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 224 -ip 2241⤵PID:1372
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
975KB
MD51d51a399962939a06396a4b4944eb33c
SHA1c7f4dfb774d0998df523e4c799f32ea4560be3ea
SHA256ec50af21b4179d62b3d9b417b5c1bedbd83ca369f3358e0ffe7073d3187bb8a9
SHA5125a5ca673ade811e2ccaec97ed89d5cbb8b4ef361eef9de2aca3f7631ac197995d526fbff07a3e1466dc0c55e1e8db612cfbb8d78e7047f141cae376c27fb4cda