Analysis
- max time kernel
150s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
03/06/2026, 12:17
General
- Target avcodec-57.dll
- Size 10.0MB
- Sample260603-pgalysfy7l
- 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 2884 -s 4883⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2884 -ip 28841⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/2884-6-0x0000000064B40000-0x0000000064B57000-memory.dmp
memory/2884-5-0x00000000738E0000-0x0000000073904000-memory.dmp
memory/2884-4-0x0000000073910000-0x0000000073978000-memory.dmp
memory/2884-3-0x0000000066200000-0x000000006630A000-memory.dmp
memory/2884-2-0x0000000063080000-0x000000006309E000-memory.dmp
memory/2884-1-0x000000006EB40000-0x000000006EB65000-memory.dmp
memory/2884-0-0x0000000073980000-0x0000000074BA7000-memory.dmp