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Analysis
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max time kernel
200s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
05/12/2022, 10:57
Static task
static1
Behavioral task
behavioral1
Sample
9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe
Resource
win10v2004-20220812-en
General
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Target
9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe
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Size
138KB
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MD5
743f3e4ad35f4e17a9951db808954955
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SHA1
6f3c61f9fc025d31689fbe179d97c7916735057c
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SHA256
9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155
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SHA512
3b36780759c0eb7bf011618fc46ef4beb322bf9eeddca8a42631a06443e773e6f68b4f536cf9466900c70ea33e60d817f760a88a8a0b3c3cea366c740f122384
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SSDEEP
3072:VBYqATWne3lWRkNpZHPImtS5Es2K9Tbw9yDx9ZP61JN:z3Af3lsk7BPXS5Es2ATbwivZP61
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1148 Wi4352t.exe -
Deletes itself 1 IoCs
pid Process 948 cmd.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe File opened for modification \??\PhysicalDrive0 Wi4352t.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\Wi4352t.exe 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe File opened for modification C:\Windows\SysWOW64\Wi4352t.exe 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.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 Wi4352t.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString Wi4352t.exe -
Modifies registry class 6 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.key Wi4352t.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ Wi4352t.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" Wi4352t.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1936 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1936 wrote to memory of 948 1936 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe 29 PID 1936 wrote to memory of 948 1936 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe 29 PID 1936 wrote to memory of 948 1936 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe 29 PID 1936 wrote to memory of 948 1936 9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe"C:\Users\Admin\AppData\Local\Temp\9e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155.exe"1⤵
- Writes to the Master Boot Record (MBR)
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\9E4EAD~1.EXE > nul2⤵
- Deletes itself
PID:948
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C:\Windows\SysWOW64\Wi4352t.exeC:\Windows\SysWOW64\Wi4352t.exe1⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- Checks processor information in registry
- Modifies registry class
PID:1148
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
138KB
MD5743f3e4ad35f4e17a9951db808954955
SHA16f3c61f9fc025d31689fbe179d97c7916735057c
SHA2569e4ead97bc01dea4219d43098916e5212120264fd60af0d2bdc3a3a268313155
SHA5123b36780759c0eb7bf011618fc46ef4beb322bf9eeddca8a42631a06443e773e6f68b4f536cf9466900c70ea33e60d817f760a88a8a0b3c3cea366c740f122384