Analysis
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max time kernel
213s -
max time network
215s -
platform
windows10-2004_x64 -
resource
win10v2004-20230915-en -
resource tags
arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system -
submitted
13-10-2023 02:48
Static task
static1
Behavioral task
behavioral1
Sample
bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe
Resource
win10v2004-20230915-en
General
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Target
bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe
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Size
198KB
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MD5
8c9df82880d9846a331d39328df93620
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SHA1
31d270902172562c7b73548039a0f7944ced8cf3
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SHA256
bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6
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SHA512
0bf0d66ef937f81767a0766ae2c61596cf9743596f348d69434bad6426d7596ef1184d7603c9e3a83f77cf010fb05ca9ad3ee933c40b15306a54336b12af66df
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SSDEEP
6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOS:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXL
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-1-5-21-1045988481-1457812719-2617974652-1000\Control Panel\International\Geo\Nation bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe -
Executes dropped EXE 1 IoCs
pid Process 4484 gyehost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\gyehost.exe bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe File opened for modification C:\Windows\Debug\gyehost.exe bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 gyehost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz gyehost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 3640 bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3640 wrote to memory of 4912 3640 bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe 85 PID 3640 wrote to memory of 4912 3640 bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe 85 PID 3640 wrote to memory of 4912 3640 bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe"C:\Users\Admin\AppData\Local\Temp\bdbad4a8d5ce2537e5884dba7ad76cd1d2ec48a4d0055eca3fd465dbfe9e6ce6.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3640 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\BDBAD4~1.EXE > nul2⤵PID:4912
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C:\Windows\Debug\gyehost.exeC:\Windows\Debug\gyehost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:4484
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
198KB
MD5e6f917cb37ec5fc1bd28ec2cc36eef68
SHA12f0e0949e80479da8348f04341aee850a1d12edc
SHA256663a4b6f32d16e55e2f30215188362caf95bfafab679ffee86011fc33f7e00b9
SHA512b8d7e64bec00ff4eb20d577fb5eff41d34af409fbe6d1d4ecfc992514f893cd1acdea1afb58418ca6e3bf4b3f65d5a510ed61c7e9e6c74389d31a71a45a8788d
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Filesize
198KB
MD5e6f917cb37ec5fc1bd28ec2cc36eef68
SHA12f0e0949e80479da8348f04341aee850a1d12edc
SHA256663a4b6f32d16e55e2f30215188362caf95bfafab679ffee86011fc33f7e00b9
SHA512b8d7e64bec00ff4eb20d577fb5eff41d34af409fbe6d1d4ecfc992514f893cd1acdea1afb58418ca6e3bf4b3f65d5a510ed61c7e9e6c74389d31a71a45a8788d