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Analysis
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max time kernel
150s -
max time network
146s -
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
TRANSFER.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
TRANSFER.exe
Resource
win10v2004-20220812-en
General
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Target
TRANSFER.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/4832-140-0x0000000000D60000-0x0000000000D7A000-memory.dmp family_stormkitty -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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 18 icanhazip.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2284 set thread context of 4496 2284 TRANSFER.exe 89 PID 4496 set thread context of 4832 4496 aspnet_compiler.exe 90 -
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 use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4832 AppLaunch.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4496 aspnet_compiler.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 2284 wrote to memory of 4496 2284 TRANSFER.exe 89 PID 2284 wrote to memory of 4496 2284 TRANSFER.exe 89 PID 2284 wrote to memory of 4496 2284 TRANSFER.exe 89 PID 2284 wrote to memory of 4496 2284 TRANSFER.exe 89 PID 2284 wrote to memory of 4496 2284 TRANSFER.exe 89 PID 2284 wrote to memory of 4496 2284 TRANSFER.exe 89 PID 2284 wrote to memory of 4496 2284 TRANSFER.exe 89 PID 2284 wrote to memory of 4496 2284 TRANSFER.exe 89 PID 4496 wrote to memory of 4832 4496 aspnet_compiler.exe 90 PID 4496 wrote to memory of 4832 4496 aspnet_compiler.exe 90 PID 4496 wrote to memory of 4832 4496 aspnet_compiler.exe 90 PID 4496 wrote to memory of 4832 4496 aspnet_compiler.exe 90 PID 4496 wrote to memory of 4832 4496 aspnet_compiler.exe 90 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\TRANSFER.exe"C:\Users\Admin\AppData\Local\Temp\TRANSFER.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2284 -
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:4496 -
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:4832
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