Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-01-2025 09:49
Static task
static1
Behavioral task
behavioral1
Sample
ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe
Resource
win10v2004-20241007-en
General
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Target
ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe
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Size
577KB
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MD5
d9f332f5bca54d609b4fd2ecaa4eb6c4
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SHA1
d6e40d4fd5d5d7db9ec33e0081c0a63e9fb5a641
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SHA256
ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b
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SHA512
60d7c4feea52940dd1b8321ecc7233a7b3fafa194a87a7b139473a8f0ff5ce563b1cf271f4777e4238e70cf6e4b2f3eb0390fade270b5c1382dadf6e393e942c
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SSDEEP
12288:YbD5arFJwK6hMJ6ZzHFZfc28beMGTfZuqb7K:rBJwdhMJ6ZzHrfcsMGTfZ5PK
Malware Config
Signatures
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Imminent family
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe -
Executes dropped EXE 1 IoCs
pid Process 4852 Webfrequency.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Webdevelop = "C:\\Users\\Admin\\AppData\\Roaming\\Webdevelop\\Webfrequency.exe" ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4852 set thread context of 3744 4852 Webfrequency.exe 103 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 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 Webfrequency.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3744 RegAsm.exe Token: 33 3744 RegAsm.exe Token: SeIncBasePriorityPrivilege 3744 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3744 RegAsm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4700 wrote to memory of 4852 4700 ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe 102 PID 4700 wrote to memory of 4852 4700 ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe 102 PID 4700 wrote to memory of 4852 4700 ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe 102 PID 4852 wrote to memory of 3744 4852 Webfrequency.exe 103 PID 4852 wrote to memory of 3744 4852 Webfrequency.exe 103 PID 4852 wrote to memory of 3744 4852 Webfrequency.exe 103 PID 4852 wrote to memory of 3744 4852 Webfrequency.exe 103 PID 4852 wrote to memory of 3744 4852 Webfrequency.exe 103 PID 4852 wrote to memory of 3744 4852 Webfrequency.exe 103 PID 4852 wrote to memory of 3744 4852 Webfrequency.exe 103 PID 4852 wrote to memory of 3744 4852 Webfrequency.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe"C:\Users\Admin\AppData\Local\Temp\ed331cc5de77ff8b729fc281fbbadb2922ada61eba94671ff8db0fe77d67983b.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4700 -
C:\Users\Admin\AppData\Roaming\Webdevelop\Webfrequency.exe"C:\Users\Admin\AppData\Roaming\Webdevelop\Webfrequency.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4852 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3744
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵PID:4672
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
577KB
MD595ff7d6d14a9a24cdc94dbc7d2c3d608
SHA18b22a4dc5767047c31fd4e098fe2e6981d44b0cb
SHA25655d7b3d08e1dba2b3373a733c60eb48aca923bc5c1ad438e9fcd80ab48b5b8f0
SHA51290eb5b4070a267fd8c251e20efec1763654b215e4778fab9b13cea69e0e207b9aab43145db18aac4f753c6955b54e16f32e6022f2284186ae1e30ca813c1945a