Analysis
- user interaction
yes - max time kernel
149s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
10/08/2026, 03:43
General
- Target WFDownloaderApp-BETA-64bit.exe
- Size 64.6MB
- Sample260810-d93bwszhjd
- SHA256 5e35c79305803dfab97b98e8fe1c02760c290146107993765f1f812220a9fe27
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 64 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 2 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. 3 IoCs
Inno Setup installer
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\WFDownloaderApp-BETA-64bit.exe"C:\Users\Admin\AppData\Local\Temp\WFDownloaderApp-BETA-64bit.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-G18CD.tmp\WFDownloaderApp-BETA-64bit.tmp"C:\Users\Admin\AppData\Local\Temp\is-G18CD.tmp\WFDownloaderApp-BETA-64bit.tmp" /SL5="$60318,67481947,422400,C:\Users\Admin\AppData\Local\Temp\WFDownloaderApp-BETA-64bit.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\WFDownloaderApp\WFDownloaderApp.exe"C:\Users\Admin\AppData\Local\WFDownloaderApp\WFDownloaderApp.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\WFDownloaderApp\WFDownloaderApp.exeC:\Users\Admin\AppData\Local\WFDownloaderApp\WFDownloaderApp.exe4⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
WFDownloaderApp-BETA-64bit.tmp
WFDownloaderApp.exe
WFDownloaderApp.cfg
WFDownloaderApp.jar
java.dll
api-ms-win-core-console-l1-1-0.dll
api-ms-win-core-console-l1-2-0.dll
api-ms-win-core-datetime-l1-1-0.dll
api-ms-win-core-debug-l1-1-0.dll
api-ms-win-core-errorhandling-l1-1-0.dll
api-ms-win-core-file-l1-1-0.dll
api-ms-win-core-file-l1-2-0.dll
api-ms-win-core-file-l2-1-0.dll
api-ms-win-core-handle-l1-1-0.dll
api-ms-win-core-heap-l1-1-0.dll
api-ms-win-core-interlocked-l1-1-0.dll
api-ms-win-core-libraryloader-l1-1-0.dll
jimage.dll
jli.dll
msvcp140.dll
net.dll
nio.dll
jvm.dll
vcruntime140.dll
vcruntime140_1.dll
zip.dll
is-6MKQI.tmp
is-CLOP4.tmp
is-R2V3C.tmp
jvm.cfg
release
memory/4804-0-0x0000000000400000-0x000000000046D000-memory.dmp
memory/4804-924-0x0000000000400000-0x000000000046D000-memory.dmp
memory/4804-332-0x0000000000400000-0x000000000046D000-memory.dmp
memory/5556-922-0x0000000000400000-0x0000000000516000-memory.dmp
memory/5556-334-0x0000000002160000-0x0000000002161000-memory.dmp
memory/5556-333-0x0000000000400000-0x0000000000516000-memory.dmp
memory/5556-6-0x0000000002160000-0x0000000002161000-memory.dmp