Analysis
- max time kernel
150s - max time network
129s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
- submitted
23/04/2026, 16:20
General
- Target 2026-04-23_95086fa72ad31da3a4687668f53854f1_elex_emotet_floxif_remcos_stop.exe
- Size 3.6MB
- Sample260423-ttf2qaax61
- SHA256 a06cb4ab3faa7ba3aaaac2f1d0c91c78d39a65fa42ef247793f95e91945c3c60
Malware Config
Signatures
- Family: Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
- Detects Floxif payload 1 IoCs
- UPX dump on OEP (original entry point) 6 IoCs
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
- Loads dropped DLL 1 IoCs
- Enumerates connected drives 3 TTPs 4 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Modifies registry class 8 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 17 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-23_95086fa72ad31da3a4687668f53854f1_elex_emotet_floxif_remcos_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-23_95086fa72ad31da3a4687668f53854f1_elex_emotet_floxif_remcos_stop.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Maps connected drives based on registry
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
symsrv.dll
symsrv.dll.000
memory/3232-22-0x0000000076690000-0x00000000766F4000-memory.dmp
memory/3232-24-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3232-14-0x0000000000E40000-0x0000000000EFB000-memory.dmp
memory/3232-17-0x00000000766A3000-0x00000000766A4000-memory.dmp
memory/3232-19-0x0000000076690000-0x00000000766F4000-memory.dmp
memory/3232-20-0x0000000076690000-0x00000000766F4000-memory.dmp
memory/3232-11-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3232-10-0x0000000000E40000-0x0000000000EFB000-memory.dmp
memory/3232-26-0x0000000076690000-0x00000000766F4000-memory.dmp
memory/3232-4-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3232-28-0x0000000076690000-0x00000000766F4000-memory.dmp
memory/3232-30-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3232-33-0x0000000010000000-0x0000000010030000-memory.dmp
memory/3232-35-0x0000000000E40000-0x0000000000EFB000-memory.dmp
memory/3232-49-0x0000000000E40000-0x0000000000EFB000-memory.dmp