Analysis
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max time kernel
79s -
max time network
139s -
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, 11:40
Static task
static1
Behavioral task
behavioral1
Sample
a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe
Resource
win7-20240903-en
General
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Target
a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe
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Size
11KB
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MD5
df942e590f6b479bf347270f6821f684
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SHA1
b768dae42679ce201c7275a58a431284ac662bb3
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SHA256
a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25
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SHA512
6a353a22f65af28a074d4e8a712fab81774ba0421909a46b8a99d42765e1fc47adaa939bb5a3c6a6a9a001e57a493b972d9d8b3b96061e84a242a0729275c2ed
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SSDEEP
192:GYJoCeCH4rqYMGnZaWOj878Z9/kmak8GCC47UTabVI9n9wOIJ:GY2TCYTLnkv08nkmK3Zg+69wOI
Malware Config
Extracted
darkcloud
- 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 1284 created 3584 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 56 -
Drops startup file 1 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RegisteredHandlers.vbs a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1284 set thread context of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91 -
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 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language InstallUtil.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe Token: SeDebugPrivilege 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3188 InstallUtil.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1284 wrote to memory of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91 PID 1284 wrote to memory of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91 PID 1284 wrote to memory of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91 PID 1284 wrote to memory of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91 PID 1284 wrote to memory of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91 PID 1284 wrote to memory of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91 PID 1284 wrote to memory of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91 PID 1284 wrote to memory of 3188 1284 a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe 91
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3584
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C:\Users\Admin\AppData\Local\Temp\a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.exe"C:\Users\Admin\AppData\Local\Temp\a2b63cfc83341df550a845c72da06bd762c4ddd556c4d5d65da204025decbc25.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:1284
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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:3188
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