Analysis
- user interaction
yes - max time kernel
64s - max time network
65s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
- submitted
22/08/2026, 12:54
General
- Target setup_proper.exe
- Size 9.0MB
- Sample260822-p491bsvbmb
- SHA256 8780c4bdd0c30b4dc5366fd0ffa58284e67d01843fe64d8d60dcd1cd7b2fc3f6
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 5 IoCs
- Loads dropped DLL 11 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 6 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
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\setup_proper.exe"C:\Users\Admin\AppData\Local\Temp\setup_proper.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-Q1JG1.tmp\setup_proper.tmp"C:\Users\Admin\AppData\Local\Temp\is-Q1JG1.tmp\setup_proper.tmp" /SL5="$601E2,8811144,140800,C:\Users\Admin\AppData\Local\Temp\setup_proper.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C C:\Users\Admin\AppData\Local\Temp\is-12QG2.tmp\fnr.exe arc.ini fgrplc -13⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-12QG2.tmp\fnr.exeC:\Users\Admin\AppData\Local\Temp\is-12QG2.tmp\fnr.exe arc.ini fgrplc -14⤵
- Executes dropped EXE
-
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C:\Users\Admin\AppData\Local\Temp\is-12QG2.tmp\FlushFileCache.exe"C:\Users\Admin\AppData\Local\Temp\is-12QG2.tmp\FlushFileCache.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
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F:\Games\Grand Theft Auto V Legacy\unins000.exe"F:\Games\Grand Theft Auto V Legacy\unins000.exe" /VERYSILENT3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\_iu14D2N.tmp"C:\Users\Admin\AppData\Local\Temp\_iu14D2N.tmp" /SECONDPHASE="F:\Games\Grand Theft Auto V Legacy\unins000.exe" /FIRSTPHASEWND=$4022C /VERYSILENT4⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of FindShellTrayWindow
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s fdPHost1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
BASS.dll
CLS.ini
CallbackCtrl.dll
FlushFileCache.exe
ISDone.dll
MusicButton.png
builder.exe
arc.ini
botva2.dll
fnr.exe
idp.dll
innocallback.dll
wintb.dll
_shfoldr.dll
setup_proper.tmp
Grand Theft Auto V Legacy.lnk
Brazilian.reg
Chinese Simplified.reg
Chinese Traditional.reg
English.reg
French.reg
German.reg
Italian.reg
Japanese.reg
Korean.reg
Polish.reg
Russian.reg
Spanish (Latin America).reg
Spanish.reg
QuickSFV.EXE
QuickSFV.ini
dxwebsetup.exe
fitgirl.md5
unins000.dat
unins000.exe
memory/636-172-0x0000000000400000-0x0000000000410000-memory.dmp
memory/3764-81-0x0000000006BC0000-0x0000000006BCF000-memory.dmp
memory/3764-88-0x0000000000400000-0x0000000000579000-memory.dmp
memory/3764-166-0x0000000003CB0000-0x0000000003CC5000-memory.dmp
memory/3764-165-0x0000000000400000-0x0000000000579000-memory.dmp
memory/3764-167-0x0000000003DD0000-0x0000000003E35000-memory.dmp
memory/3764-96-0x0000000000400000-0x0000000000579000-memory.dmp
memory/3764-91-0x0000000003CB0000-0x0000000003CC5000-memory.dmp
memory/3764-92-0x0000000003DD0000-0x0000000003E35000-memory.dmp
memory/3764-93-0x000000006B080000-0x000000006B08D000-memory.dmp
memory/3764-94-0x0000000011000000-0x000000001104C000-memory.dmp
memory/3764-95-0x0000000006BC0000-0x0000000006BCF000-memory.dmp
memory/3764-90-0x0000000000400000-0x0000000000579000-memory.dmp
memory/3764-211-0x0000000000400000-0x0000000000579000-memory.dmp
memory/3764-170-0x0000000006BC0000-0x0000000006BCF000-memory.dmp
memory/3764-205-0x0000000003CB0000-0x0000000003CC5000-memory.dmp
memory/3764-72-0x0000000011000000-0x000000001104C000-memory.dmp
memory/3764-29-0x0000000003DD0000-0x0000000003E35000-memory.dmp
memory/3764-22-0x0000000003CB0000-0x0000000003CC5000-memory.dmp
memory/3764-8-0x0000000000400000-0x0000000000579000-memory.dmp
memory/3764-7-0x0000000000400000-0x0000000000579000-memory.dmp
memory/3764-206-0x0000000003DD0000-0x0000000003E35000-memory.dmp
memory/3764-204-0x0000000000400000-0x0000000000579000-memory.dmp
memory/3936-202-0x0000000000400000-0x0000000000579000-memory.dmp
memory/4208-2-0x000000000041E000-0x000000000041F000-memory.dmp
memory/4208-0-0x0000000000400000-0x000000000042D000-memory.dmp
memory/4208-89-0x0000000000400000-0x000000000042D000-memory.dmp
memory/4208-212-0x0000000000400000-0x000000000042D000-memory.dmp
memory/4344-201-0x0000000000400000-0x0000000000579000-memory.dmp