Analysis
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max time kernel
93s -
max time network
141s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
10/03/2025, 11:19
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe
Resource
win7-20240903-en
4 signatures
150 seconds
General
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Target
45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe
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Size
944KB
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MD5
94a3388b30fa8672e8278bee447504fa
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SHA1
0a70903b6d92bd992b584baab8591fdc32bfb644
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SHA256
45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f
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SHA512
98e99b141515b9a53ea84f7704f30c72260bce1db369c23f069c1b2e3f2370592283cb61d9682f98c2eb52284d51fa1b246e81d82dd7963549a8c93dd917667f
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SSDEEP
12288:sqRXGS9YGxprdVZY+7zX97MZV2+YkXJT8ibkKQ:fXRYGxpBk+P94K+Ykp8ibkKQ
Malware Config
Extracted
Family
darkcloud
Attributes
- email_from
- email_to
Signatures
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Darkcloud family
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 1972 created 3452 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 55 -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Instance.vbs 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1972 set thread context of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95 -
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 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe Token: SeDebugPrivilege 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 432 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1972 wrote to memory of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95 PID 1972 wrote to memory of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95 PID 1972 wrote to memory of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95 PID 1972 wrote to memory of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95 PID 1972 wrote to memory of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95 PID 1972 wrote to memory of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95 PID 1972 wrote to memory of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95 PID 1972 wrote to memory of 432 1972 45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe 95
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3452
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C:\Users\Admin\AppData\Local\Temp\45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe"C:\Users\Admin\AppData\Local\Temp\45b104579f856aba3d99b5370360240a3f9f95b82969e3f7ba12c14b0d7abb7f.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1972
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:432
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