Analysis
- user interaction
yes - max time kernel
149s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
- submitted
03/07/2026, 01:39
General
- Target CrimsonClientInstaller.exe
- Size 68.8MB
- Sample260703-b2ymmaex2p
- SHA256 13036080ca494b53e35d1c9fa2c1a71e96929e74256ec019ba76e91d3164b426
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
- 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. 2 IoCs
Inno Setup installer
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\CrimsonClientInstaller.exe"C:\Users\Admin\AppData\Local\Temp\CrimsonClientInstaller.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-DZZLPTUX81.tmp\CrimsonClientInstaller.tmp"C:\Users\Admin\AppData\Local\Temp\is-DZZLPTUX81.tmp\CrimsonClientInstaller.tmp" /SL5="$1801E2,70896494,913920,C:\Users\Admin\AppData\Local\Temp\CrimsonClientInstaller.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
CrimsonClientInstaller.tmp
memory/3928-15-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-21-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-35-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-9-0x00000000035C0000-0x00000000035C1000-memory.dmp
memory/3928-8-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-11-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-13-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-33-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-5-0x00000000035C0000-0x00000000035C1000-memory.dmp
memory/3928-17-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-19-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-23-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-25-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-27-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-29-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/3928-31-0x0000000000D50000-0x0000000001199000-memory.dmp
memory/4888-0-0x0000000000770000-0x000000000085E000-memory.dmp
memory/4888-7-0x0000000000770000-0x000000000085E000-memory.dmp