Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
18/04/2026, 09:26
General
- Target b839317233a97433d3b1605fefac192045fb28bfcca4986f240dc9d51dfd5502.exe
- Size 2.6MB
- Sample260418-lepfjsb15v
- SHA256 b839317233a97433d3b1605fefac192045fb28bfcca4986f240dc9d51dfd5502
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 13 IoCs
- UPX packed file 9 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
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b839317233a97433d3b1605fefac192045fb28bfcca4986f240dc9d51dfd5502.exe"C:\Users\Admin\AppData\Local\Temp\b839317233a97433d3b1605fefac192045fb28bfcca4986f240dc9d51dfd5502.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\f33c637C:\Windows\Syswow64\f33c6371⤵
- Executes dropped EXE
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
f33c637
memory/1388-0-0x00000000006C0000-0x0000000000749000-memory.dmp
memory/1388-10-0x00000000006C0000-0x0000000000749000-memory.dmp
memory/1388-32-0x00000000006C0000-0x0000000000749000-memory.dmp
memory/1388-33-0x0000000002790000-0x00000000027F4000-memory.dmp
memory/1388-43-0x00000000006C0000-0x0000000000749000-memory.dmp
memory/1388-57-0x00000000006C0000-0x0000000000749000-memory.dmp
memory/5780-4-0x0000000000380000-0x0000000000409000-memory.dmp
memory/5780-12-0x0000000000380000-0x0000000000409000-memory.dmp
memory/5780-13-0x0000000001EF0000-0x0000000001F54000-memory.dmp
memory/5780-21-0x0000000001EF0000-0x0000000001F54000-memory.dmp
memory/5780-34-0x0000000000380000-0x0000000000409000-memory.dmp