Analysis
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max time kernel
149s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system -
submitted
23/02/2024, 05:52
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
sigma.exe
Resource
win7-20240220-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
sigma.exe
Resource
win10v2004-20240221-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
sigma.exe
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Size
20KB
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MD5
0538a4a430b66ae204ca43c6d349a3a0
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SHA1
e52fb2e8c50c8aefc44c351d178f6ccc6893afca
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SHA256
3868074b2a2afa62ded79273052d7422fbad8f6e5ae09acea799d60edf96ebc5
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SHA512
086dbffb8adf1297594645b8b92c933b757ec6b5ceb40885235c852dde9e591189aa4655dcdfc564a685367e033b135f0cb6d294f10a6686232d6c66954e8759
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SSDEEP
384:tmKUE8ZjW0t41hjmD4TpCpAAJMpCTTVW/g929tVkkLVa3xe74507l:tmvTZjW0t4W0deRM/x9BVwJU
Score
7/10
Malware Config
Signatures
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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-1-5-21-2132103209-3755304320-2959162027-1000\Control Panel\International\Geo\Nation sigma.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Updater = "C:\\Users\\Admin\\AppData\\Roaming\\Windows\\Windows-Updater.exe" sigma.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4760 set thread context of 4724 4760 sigma.exe 96 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2132103209-3755304320-2959162027-1000_Classes\Local Settings taskmgr.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 852 powershell.exe 852 powershell.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeDebugPrivilege 4760 sigma.exe Token: SeDebugPrivilege 852 powershell.exe Token: SeDebugPrivilege 2412 taskmgr.exe Token: SeSystemProfilePrivilege 2412 taskmgr.exe Token: SeCreateGlobalPrivilege 2412 taskmgr.exe -
Suspicious use of FindShellTrayWindow 64 IoCs
pid Process 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe -
Suspicious use of SendNotifyMessage 64 IoCs
pid Process 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe 2412 taskmgr.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4760 wrote to memory of 852 4760 sigma.exe 94 PID 4760 wrote to memory of 852 4760 sigma.exe 94 PID 4760 wrote to memory of 4724 4760 sigma.exe 96 PID 4760 wrote to memory of 4724 4760 sigma.exe 96 PID 4760 wrote to memory of 4724 4760 sigma.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\sigma.exe"C:\Users\Admin\AppData\Local\Temp\sigma.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath C:\2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:852
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe2⤵PID:4724
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /71⤵
- Checks SCSI registry key(s)
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2412
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:1628
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
20KB
MD50538a4a430b66ae204ca43c6d349a3a0
SHA1e52fb2e8c50c8aefc44c351d178f6ccc6893afca
SHA2563868074b2a2afa62ded79273052d7422fbad8f6e5ae09acea799d60edf96ebc5
SHA512086dbffb8adf1297594645b8b92c933b757ec6b5ceb40885235c852dde9e591189aa4655dcdfc564a685367e033b135f0cb6d294f10a6686232d6c66954e8759