Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
04/05/2026, 19:10
General
- Target 85a55fb3d365bd2ec0ce050141b7e49a1e56358b9591a3551071a103e95763f0.exe
- Size 3.0MB
- Sample260504-xvs98aa19v
- SHA256 85a55fb3d365bd2ec0ce050141b7e49a1e56358b9591a3551071a103e95763f0
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Drops file in System32 directory 1 IoCs
- UPX packed file 7 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.
- Program crash 2 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\85a55fb3d365bd2ec0ce050141b7e49a1e56358b9591a3551071a103e95763f0.exe"C:\Users\Admin\AppData\Local\Temp\85a55fb3d365bd2ec0ce050141b7e49a1e56358b9591a3551071a103e95763f0.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\sc.exesc.exe start DFd1zmhBFY2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
-
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C:\Windows\Syswow64\c9b9a140C:\Windows\Syswow64\c9b9a1401⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3052 -s 1482⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3052 -ip 30521⤵
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C:\Windows\Syswow64\c9b9a140C:\Windows\Syswow64\c9b9a1401⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2144 -s 1482⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2144 -ip 21441⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
c9b9a140
memory/2144-6-0x00000000002E0000-0x00000000005E5000-memory.dmp
memory/2144-7-0x00000000002E0000-0x00000000005E5000-memory.dmp
memory/3052-3-0x00000000002E0000-0x00000000005E5000-memory.dmp
memory/3052-4-0x00000000002E0000-0x00000000005E5000-memory.dmp
memory/3380-0-0x0000000000DA0000-0x00000000010A5000-memory.dmp
memory/3380-16-0x0000000000DA0000-0x00000000010A5000-memory.dmp
memory/3380-17-0x0000000000BA0000-0x0000000000C22000-memory.dmp