Analysis
- max time kernel
149s - max time network
146s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
26/04/2026, 02:19
General
- Target 8efc1548776088da0fc140bd9c5e36e343cd6993cd61d3c5e64d780a49a100ad.exe
- Size 1.4MB
- Sample260426-crvcwsct91
- SHA256 8efc1548776088da0fc140bd9c5e36e343cd6993cd61d3c5e64d780a49a100ad
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- Unexpected DNS network traffic destination 4 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
- Drops file in System32 directory 17 IoCs
- UPX packed file 8 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Windows directory 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.
- Modifies data under HKEY_USERS 9 IoCs
- Modifies system certificate store 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8efc1548776088da0fc140bd9c5e36e343cd6993cd61d3c5e64d780a49a100ad.exe"C:\Users\Admin\AppData\Local\Temp\8efc1548776088da0fc140bd9c5e36e343cd6993cd61d3c5e64d780a49a100ad.exe"1⤵
- Unexpected DNS network traffic destination
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\Syswow64\dff40924C:\Windows\Syswow64\dff409241⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
dff40924
memory/2700-12-0x0000000000EB0000-0x0000000000F14000-memory.dmp
memory/2700-10-0x0000000000B10000-0x0000000000B99000-memory.dmp
memory/2700-0-0x0000000000B10000-0x0000000000B99000-memory.dmp
memory/2700-32-0x0000000000B10000-0x0000000000B99000-memory.dmp
memory/2700-33-0x0000000000EB0000-0x0000000000F14000-memory.dmp
memory/2700-53-0x0000000000EB0000-0x0000000000F14000-memory.dmp
memory/2700-75-0x0000000000B10000-0x0000000000B99000-memory.dmp
memory/2700-76-0x0000000000EB0000-0x0000000000F14000-memory.dmp
memory/3912-3-0x00000000007C0000-0x0000000000849000-memory.dmp
memory/3912-13-0x00000000007C0000-0x0000000000849000-memory.dmp
memory/3912-14-0x0000000001400000-0x0000000001464000-memory.dmp
memory/3912-22-0x0000000001400000-0x0000000001464000-memory.dmp
memory/3912-34-0x00000000007C0000-0x0000000000849000-memory.dmp