Analysis
-
max time kernel
141s -
max time network
129s -
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, 03:32
Static task
static1
Behavioral task
behavioral1
Sample
8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe
Resource
win10v2004-20240221-en
General
-
Target
8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe
-
Size
197KB
-
MD5
1a5d4ac888f4f526f6e1388737f4bbca
-
SHA1
378f2bc0b012c27928473616acc05b02164266b3
-
SHA256
8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5
-
SHA512
637e3f3fca24241c7e4a15a3bd42463a025165e06ad2f26b3c42c5bb0c0ddbe23c669c4d9eb8d10dfd2ca158132457f913dcf916f063e7c352f5f922bd5fdd93
-
SSDEEP
6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCOz:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXC
Malware Config
Signatures
-
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-1-5-21-2828415587-3732861812-1919322417-1000\Control Panel\International\Geo\Nation 8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe -
Executes dropped EXE 1 IoCs
pid Process 2836 eiyhost.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\Debug\eiyhost.exe 8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe File opened for modification C:\Windows\Debug\eiyhost.exe 8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
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 eiyhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz eiyhost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4856 8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4856 wrote to memory of 1556 4856 8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe 91 PID 4856 wrote to memory of 1556 4856 8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe 91 PID 4856 wrote to memory of 1556 4856 8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe"C:\Users\Admin\AppData\Local\Temp\8579521a4474e4b5e7d0c5634c21da20a048787214048a7d9a703e99c45ac3d5.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- 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\857952~1.EXE > nul2⤵PID:1556
-
-
C:\Windows\Debug\eiyhost.exeC:\Windows\Debug\eiyhost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2836
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
197KB
MD5437a1d31fbfcf29c353a1b34aa02fc7a
SHA13cba62c108a7921410147868bde9deb6155dc88d
SHA25688932817c3bdfa06f8af19dfadd1193f69c7754698fa833495253106e26b0c19
SHA5126b88318a9274f82730a9cb2b304df19fcaa74b74a44f37e73b5040a9331217b630f0054b706e59e8051675505e5faf008e1930625d586d4e875ef3683a5dd016