Analysis
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max time kernel
111s -
max time network
110s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
30/10/2024, 14:35
Static task
static1
Behavioral task
behavioral1
Sample
a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe
Resource
win10v2004-20241007-en
General
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Target
a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe
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Size
58KB
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MD5
9ab82b2b727ff63da75a23ce811d3420
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SHA1
92a8a943e34fa186e18e0ace3c0aaf50c1718c03
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SHA256
a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59f
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SHA512
443908cfe6fb01593859707c87e5f62b2d9e63dbcb9330c5af46e577e9fe072ba173660b3c4601f9e4b6cf0c28c654c84c1cd55d44958f84484a39dd31edc24c
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SSDEEP
1536:hvQoLHjw2iWPKMvw71/RLyXwvvvZeee5Ltttt7:hv5Ls27BIJ/RLyXweeeRtttt7
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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe -
Executes dropped EXE 1 IoCs
pid Process 1904 dcihost.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\dcihost.exe a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe File opened for modification C:\Windows\Debug\dcihost.exe a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe -
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 a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language dcihost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
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 dcihost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dcihost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4856 a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4856 wrote to memory of 4800 4856 a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe 88 PID 4856 wrote to memory of 4800 4856 a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe 88 PID 4856 wrote to memory of 4800 4856 a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe"C:\Users\Admin\AppData\Local\Temp\a93edf36ef25a61c0a99b157304430622b69a0182ae853dab26ca2fdc14ee59fN.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4856 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\A93EDF~1.EXE > nul2⤵
- System Location Discovery: System Language Discovery
PID:4800
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C:\Windows\Debug\dcihost.exeC:\Windows\Debug\dcihost.exe1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
PID:1904
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
58KB
MD593f76f717b5ee4130ba116057725842e
SHA1d638b4f3febcc50af41ad91f4abae33d924ceae6
SHA256dc85a01981943b445b3af06e99d533aa50f4de395c85157e50c38befdc23412e
SHA512128bb8246f6eaff59665f97a8302b5e7748a34112989a2f8d9d102bcec03a149da30e70ac73c5ad11290594dbce8de0cf4f5d00b94bbf526cc4cf2c19119386d