Analysis
- user interaction
yes - max time kernel
149s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
31/08/2026, 17:17
General
- Target $R6YYJ25.exe
- Size 7.1MB
- Sample260831-vtp53axcqc
- SHA256 2eb4f20faee596bb421810c5078b6188b13c01b94c28b6b86e1775d49c0d2613
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 11 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\$R6YYJ25.exe"C:\Users\Admin\AppData\Local\Temp\$R6YYJ25.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-S2FON.tmp\$R6YYJ25.tmp"C:\Users\Admin\AppData\Local\Temp\is-S2FON.tmp\$R6YYJ25.tmp" /SL5="$A0064,6802492,140800,C:\Users\Admin\AppData\Local\Temp\$R6YYJ25.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:\Users\Admin\AppData\Local\Temp\is-MRT61.tmp\FlushFileCache.exe"C:\Users\Admin\AppData\Local\Temp\is-MRT61.tmp\FlushFileCache.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
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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
botva2.dll
idp.dll
innocallback.dll
wintb.dll
$R6YYJ25.tmp
memory/1720-0-0x0000000000400000-0x000000000042D000-memory.dmp
memory/1720-74-0x0000000000400000-0x000000000042D000-memory.dmp
memory/1720-2-0x000000000041E000-0x000000000041F000-memory.dmp
memory/1972-172-0x0000000000400000-0x0000000000410000-memory.dmp
memory/5776-95-0x0000000003E10000-0x0000000003E75000-memory.dmp
memory/5776-108-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-77-0x0000000011000000-0x000000001104C000-memory.dmp
memory/5776-86-0x0000000007120000-0x000000000712F000-memory.dmp
memory/5776-33-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-30-0x0000000003E10000-0x0000000003E75000-memory.dmp
memory/5776-94-0x0000000003CF0000-0x0000000003D05000-memory.dmp
memory/5776-99-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-98-0x0000000007120000-0x000000000712F000-memory.dmp
memory/5776-97-0x0000000011000000-0x000000001104C000-memory.dmp
memory/5776-96-0x000000006B080000-0x000000006B08D000-memory.dmp
memory/5776-101-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-113-0x0000000007120000-0x000000000712F000-memory.dmp
memory/5776-76-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-109-0x0000000003CF0000-0x0000000003D05000-memory.dmp
memory/5776-115-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-123-0x0000000003CF0000-0x0000000003D05000-memory.dmp
memory/5776-122-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-23-0x0000000003CF0000-0x0000000003D05000-memory.dmp
memory/5776-8-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-9-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-174-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-173-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-177-0x0000000003CF0000-0x0000000003D05000-memory.dmp
memory/5776-178-0x0000000003E10000-0x0000000003E75000-memory.dmp
memory/5776-176-0x0000000000400000-0x0000000000579000-memory.dmp
memory/5776-185-0x0000000003E10000-0x0000000003E75000-memory.dmp