Analysis
- max time kernel
149s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
16/05/2026, 09:52
General
- Target 2026-05-16_6b19165c03e72623f8cce920c5194025_coinminer_elex_floxif_wannacry.exe
- Size 1.3MB
- Sample260516-lv7basct6y
- SHA256 0392c8882c728f784672d191b8706c62f22d365365061c540401293fd3a464f5
Malware Config
Signatures
- Family: Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
- Detects Floxif payload 1 IoCs
- Custom signatureUPX dump on OEP (original entry point) 3 IoCs
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 1 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.
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 8 IoCs
- 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
- Modifies registry class 6 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-16_6b19165c03e72623f8cce920c5194025_coinminer_elex_floxif_wannacry.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-16_6b19165c03e72623f8cce920c5194025_coinminer_elex_floxif_wannacry.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RExplorer17_setup.exe"C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RExplorer17_setup.exe" /SILENT /SUPPRESSMSGBOXES /NORESTART /SP-2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-GHCON.tmp\RExplorer17_setup.tmp"C:\Users\Admin\AppData\Local\Temp\is-GHCON.tmp\RExplorer17_setup.tmp" /SL5="$60292,777883,121344,C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\RExplorer17_setup.exe" /SILENT /SUPPRESSMSGBOXES /NORESTART /SP-3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
symsrv.dll
RExplorer17_setup.exe
RExplorer17_setup.tmp
memory/1092-24-0x00000000024E0000-0x00000000024E1000-memory.dmp
memory/1092-36-0x0000000000400000-0x000000000052E000-memory.dmp
memory/1356-18-0x0000000000400000-0x0000000000428000-memory.dmp
memory/1356-37-0x0000000000400000-0x0000000000428000-memory.dmp
memory/5184-4-0x0000000010000000-0x0000000010030000-memory.dmp
memory/5184-44-0x0000000010000000-0x0000000010030000-memory.dmp