Analysis
- max time kernel
149s - max time network
129s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
17/05/2026, 18:12
General
- Target avcodec-57.dll
- Size 10.0MB
- Sample260517-wtak2sby7x
- SHA256 78f4a5e11238fc4cb5f3db7fd14f696bf7f6f6f8f78b10cb3d52b7a8c9a01c41
Score
3/10
Malware Config
Signatures
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-57.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\avcodec-57.dll,#12⤵
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2864 -s 4803⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 2864 -ip 28641⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/2864-2-0x0000000066200000-0x000000006630A000-memory.dmp
memory/2864-6-0x0000000064B40000-0x0000000064B57000-memory.dmp
memory/2864-5-0x0000000074310000-0x0000000074334000-memory.dmp
memory/2864-4-0x000000006EB40000-0x000000006EB65000-memory.dmp
memory/2864-3-0x0000000074340000-0x00000000743A8000-memory.dmp
memory/2864-1-0x0000000063080000-0x000000006309E000-memory.dmp
memory/2864-0-0x00000000743B0000-0x00000000755D7000-memory.dmp