Analysis
- user interaction
yes - max time kernel
75s - max time network
73s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
31/05/2026, 17:52
General
- Target MCA_Selector_Setup.exe
- Size 36.3MB
- Sample260531-wfxtesfx7k
- SHA256 ae79c3fc5543ee94393951da0f7ae441710fa21ec5e546632adb47ad116392c8
Malware Config
Signatures
- 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 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. 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: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MCA_Selector_Setup.exe"C:\Users\Admin\AppData\Local\Temp\MCA_Selector_Setup.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-2G07W9A05G.tmp\MCA_Selector_Setup.tmp"C:\Users\Admin\AppData\Local\Temp\is-2G07W9A05G.tmp\MCA_Selector_Setup.tmp" /SL5="$50114,36694778,839680,C:\Users\Admin\AppData\Local\Temp\MCA_Selector_Setup.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\Temp\is-KW2HJZQAHT.tmp\7za.exe"C:\Users\Admin\AppData\Local\Temp\is-KW2HJZQAHT.tmp\\7za.exe" x -y C:\Users\Admin\AppData\Local\Temp\is-KW2HJZQAHT.tmp\\jre.zip3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Programs\MCA Selector\MCA Selector.exe"C:\Users\Admin\AppData\Local\Programs\MCA Selector\\MCA Selector.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
MCA Selector.exe
java.dll
api-ms-win-core-console-l1-1-0.dll
api-ms-win-core-console-l1-2-0.dll
jimage.dll
jsvml.dll
management.dll
management_ext.dll
net.dll
nio.dll
classes.jsa
jvm.dll
vcruntime140.dll
vcruntime140_1.dll
zip.dll
jaxp.properties
java.security
tzdb.dat
tzmappings
NBT-13516d666a.jar
classindex-3.13.jar
commons-cli-1.10.0.jar
error_prone_annotations-2.36.0.jar
fastutil-8.5.15.jar
flowless-0.7.4.jar
groovy-4.0.26.jar
groovy-jsr223-4.0.26.jar
gson-2.12.1.jar
guava-21.0.jar
jline-native-3.24.1.jar
jline-terminal-3.24.1.jar
leveldb-0.12.jar
leveldb-api-0.12.jar
log4j-api-2.24.3.jar
log4j-core-2.24.3.jar
lz4-java-1.8.0.jar
progressbar-0.10.1.jar
reactfx-2.0-M5.jar
richtextfx-0.11.7.jar
slf4j-api-2.0.16.jar
slf4j-simple-2.0.16.jar
undofx-2.1.1.jar
wellbehavedfx-0.3.3.jar
mcaselector.jar
ADDITIONAL_LICENSE_INFO
ASSEMBLY_EXCEPTION
LICENSE
+JXF14645942846056331390.tmp
+JXF14855870014391552067.tmp
+JXF4130472296908682145.tmp
MCA_Selector_Setup.tmp
7za.exe
memory/740-964-0x00000000098A0000-0x0000000009B10000-memory.dmp
memory/740-940-0x0000000010DD0000-0x0000000011040000-memory.dmp
memory/740-1154-0x00000000098A0000-0x0000000009B10000-memory.dmp
memory/740-965-0x0000000011360000-0x00000000115D0000-memory.dmp
memory/740-1155-0x0000000011360000-0x00000000115D0000-memory.dmp
memory/740-1153-0x0000000010DD0000-0x0000000011040000-memory.dmp
memory/740-1152-0x0000000010DD0000-0x0000000011040000-memory.dmp
memory/3320-8-0x0000000000F80000-0x00000000013B6000-memory.dmp
memory/3320-5-0x0000000001430000-0x0000000001431000-memory.dmp
memory/3320-709-0x0000000000F80000-0x00000000013B6000-memory.dmp
memory/3320-919-0x0000000000F80000-0x00000000013B6000-memory.dmp
memory/3320-9-0x0000000001430000-0x0000000001431000-memory.dmp
memory/3320-13-0x0000000000F80000-0x00000000013B6000-memory.dmp
memory/3320-966-0x0000000000F80000-0x00000000013B6000-memory.dmp
memory/5112-7-0x0000000000700000-0x00000000007DB000-memory.dmp
memory/5112-987-0x0000000000700000-0x00000000007DB000-memory.dmp
memory/5112-0-0x0000000000700000-0x00000000007DB000-memory.dmp