Analysis
- max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
- submitted
23/06/2026, 12:18
General
- Target utweb_installer.exe
- Size 2.1MB
- Sample260623-pgmxaacx3p
- SHA256 f453af6713f105324572670caccccbf46c3a2e210b0a02b96009ba6d6e73be17
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 10 IoCs
- Checks for any installed AV software in registry 1 TTPs 12 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Modifies registry class 39 IoCs
- Suspicious behavior: EnumeratesProcesses 26 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\utweb_installer.exe"C:\Users\Admin\AppData\Local\Temp\utweb_installer.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-VJHF1JKTS4.tmp\utweb_installer.tmp"C:\Users\Admin\AppData\Local\Temp\is-VJHF1JKTS4.tmp\utweb_installer.tmp" /SL5="$C006C,927913,882176,C:\Users\Admin\AppData\Local\Temp\utweb_installer.exe"2⤵
- Executes dropped EXE
- Checks for any installed AV software in registry
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-8QJBK0VIZ4.tmp\utweb_installer.exe"C:\Users\Admin\AppData\Local\Temp\is-8QJBK0VIZ4.tmp\utweb_installer.exe" /S3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
-
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
106.png
107.png
108.png
utweb_installer.exe
utweb_installer.tmp
FindProcDLL.dll
INetC.dll
System.dll
UAC.dll
nsisFirewall.dll
utweb.exe
memory/1764-26-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-18-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-32-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-31-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-36-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-37-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-40-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-39-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-50-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-149-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-57-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-24-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-23-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-30-0x00000000043A0000-0x00000000044E0000-memory.dmp
memory/1764-19-0x0000000001B80000-0x0000000001B81000-memory.dmp
memory/1764-147-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-6-0x0000000001B80000-0x0000000001B81000-memory.dmp
memory/1764-124-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-126-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-128-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-130-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-132-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-134-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-143-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/1764-145-0x0000000000BD0000-0x0000000001010000-memory.dmp
memory/3564-17-0x0000000000320000-0x0000000000406000-memory.dmp
memory/3564-0-0x0000000000320000-0x0000000000406000-memory.dmp