Analysis
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max time kernel
144s -
max time network
176s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
24-06-2022 22:32
Static task
static1
Behavioral task
behavioral1
Sample
158c187328cc74a62e49ee95380f6df1a33b865bc010076af7dbc3256660061d.dll
Resource
win7-20220414-en
General
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Target
158c187328cc74a62e49ee95380f6df1a33b865bc010076af7dbc3256660061d.dll
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Size
10.0MB
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MD5
f650497633ae6be365e053758bb5b51d
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SHA1
3848671c027614d00dc666e722b28906aeaf4818
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SHA256
158c187328cc74a62e49ee95380f6df1a33b865bc010076af7dbc3256660061d
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SHA512
b7f84905944b3805974894ec96d9fd0bd9e8ea984e46572edce958531588a0dff6c6804540fe2bc35238849eb1fe7ea298fd4e2fa4e8d7980fcd72a23e8226d7
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
rundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ rundll32.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion rundll32.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion rundll32.exe -
Processes:
resource yara_rule behavioral2/memory/3236-132-0x0000000002400000-0x0000000004EDD000-memory.dmp themida behavioral2/memory/3236-133-0x0000000002400000-0x0000000004EDD000-memory.dmp themida behavioral2/memory/3236-134-0x0000000002400000-0x0000000004EDD000-memory.dmp themida behavioral2/memory/3236-135-0x0000000002400000-0x0000000004EDD000-memory.dmp themida behavioral2/memory/3236-136-0x0000000002400000-0x0000000004EDD000-memory.dmp themida behavioral2/memory/3236-137-0x0000000002400000-0x0000000004EDD000-memory.dmp themida -
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
rundll32.exepid process 3236 rundll32.exe -
Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process target process 3000 3236 WerFault.exe rundll32.exe 4404 3236 WerFault.exe rundll32.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
rundll32.exepid process 3236 rundll32.exe 3236 rundll32.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
rundll32.exerundll32.exedescription pid process target process PID 2856 wrote to memory of 3236 2856 rundll32.exe rundll32.exe PID 2856 wrote to memory of 3236 2856 rundll32.exe rundll32.exe PID 2856 wrote to memory of 3236 2856 rundll32.exe rundll32.exe PID 3236 wrote to memory of 3000 3236 rundll32.exe WerFault.exe PID 3236 wrote to memory of 3000 3236 rundll32.exe WerFault.exe PID 3236 wrote to memory of 3000 3236 rundll32.exe WerFault.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\158c187328cc74a62e49ee95380f6df1a33b865bc010076af7dbc3256660061d.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2856 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\158c187328cc74a62e49ee95380f6df1a33b865bc010076af7dbc3256660061d.dll,#12⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3236 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 7763⤵
- Program crash
PID:3000 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 7763⤵
- Program crash
PID:4404
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3236 -ip 32361⤵PID:2288
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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memory/3000-139-0x0000000000000000-mapping.dmp
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memory/3236-130-0x0000000000000000-mapping.dmp
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memory/3236-131-0x0000000077D80000-0x0000000077F23000-memory.dmpFilesize
1.6MB
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memory/3236-132-0x0000000002400000-0x0000000004EDD000-memory.dmpFilesize
42.9MB
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memory/3236-133-0x0000000002400000-0x0000000004EDD000-memory.dmpFilesize
42.9MB
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memory/3236-134-0x0000000002400000-0x0000000004EDD000-memory.dmpFilesize
42.9MB
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memory/3236-135-0x0000000002400000-0x0000000004EDD000-memory.dmpFilesize
42.9MB
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memory/3236-136-0x0000000002400000-0x0000000004EDD000-memory.dmpFilesize
42.9MB
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memory/3236-137-0x0000000002400000-0x0000000004EDD000-memory.dmpFilesize
42.9MB
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memory/3236-138-0x0000000077D80000-0x0000000077F23000-memory.dmpFilesize
1.6MB
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memory/3236-140-0x0000000077D80000-0x0000000077F23000-memory.dmpFilesize
1.6MB