Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05-10-2022 08:00
Static task
static1
Behavioral task
behavioral1
Sample
Transferir copia.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
Transferir copia.exe
Resource
win10v2004-20220812-en
General
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Target
Transferir copia.exe
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Size
644KB
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MD5
2291920ad0a80650cba8a6d8e62fca40
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SHA1
f2f42f00f1c9337636f9615e0eebd38d86b46f14
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SHA256
af0c49cd5e2b41f27d460deb736e47c58009be3fcef52c8720926a0a6bdfc103
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SHA512
2c793123997b31f7ae8b94d4ffbb8d8e2fffbbd35da0f8f0b6f5e1c326a71cd0e4431c276ff2fc470f2f77d57343259f6b07036a2c6a0319958416ae53470245
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SSDEEP
12288:D+cPxGu+EjNjdUeJ2IZWAtb5xgtk5Atl3vF9uMW9e3fdn:HGzExjOejXxYkKdN9ck1n
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377
Signatures
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BluStealer
A Modular information stealer written in Visual Basic.
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StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
resource yara_rule behavioral2/memory/2732-142-0x0000000000500000-0x000000000051A000-memory.dmp family_stormkitty -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 11 icanhazip.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4820 set thread context of 4192 4820 Transferir copia.exe 84 PID 4192 set thread context of 2732 4192 aspnet_compiler.exe 85 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 AppLaunch.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier AppLaunch.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4820 Transferir copia.exe 4820 Transferir copia.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4820 Transferir copia.exe Token: SeDebugPrivilege 2732 AppLaunch.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4192 aspnet_compiler.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 4820 wrote to memory of 2216 4820 Transferir copia.exe 83 PID 4820 wrote to memory of 2216 4820 Transferir copia.exe 83 PID 4820 wrote to memory of 2216 4820 Transferir copia.exe 83 PID 4820 wrote to memory of 4192 4820 Transferir copia.exe 84 PID 4820 wrote to memory of 4192 4820 Transferir copia.exe 84 PID 4820 wrote to memory of 4192 4820 Transferir copia.exe 84 PID 4820 wrote to memory of 4192 4820 Transferir copia.exe 84 PID 4820 wrote to memory of 4192 4820 Transferir copia.exe 84 PID 4820 wrote to memory of 4192 4820 Transferir copia.exe 84 PID 4820 wrote to memory of 4192 4820 Transferir copia.exe 84 PID 4820 wrote to memory of 4192 4820 Transferir copia.exe 84 PID 4192 wrote to memory of 2732 4192 aspnet_compiler.exe 85 PID 4192 wrote to memory of 2732 4192 aspnet_compiler.exe 85 PID 4192 wrote to memory of 2732 4192 aspnet_compiler.exe 85 PID 4192 wrote to memory of 2732 4192 aspnet_compiler.exe 85 PID 4192 wrote to memory of 2732 4192 aspnet_compiler.exe 85 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Transferir copia.exe"C:\Users\Admin\AppData\Local\Temp\Transferir copia.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"2⤵PID:2216
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4192 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2732
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