Analysis
- max time kernel
137s - max time network
131s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
17/08/2024, 13:37
General
- Target 2024-08-17_e5d2dcb1faba5099a160d9b7fab49223_floxif_mafia.exe
- Size 1.8MB
- Sample240817-qw7exa1dpp
- SHA256 7ca465a4fa9eb508675533be84998373df84426d98debfda11ff68fcc33d1bd5
Malware Config
Signatures
- Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
- Detects Floxif payload 1 IoCs
- Drops file in Drivers directory 1 IoCs
- Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- UPX packed file 7 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Drops file in Program Files directory 2 IoCs
- 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.
- Opens file in notepad (likely ransom note) 1 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-08-17_e5d2dcb1faba5099a160d9b7fab49223_floxif_mafia.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-17_e5d2dcb1faba5099a160d9b7fab49223_floxif_mafia.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 WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\2024-08-17_e5d2dcb1faba5099a160d9b7fab49223_floxif_mafia64.exeC:\Users\Admin\AppData\Local\Temp\2024-08-17_e5d2dcb1faba5099a160d9b7fab49223_floxif_mafia.exe2⤵
- Drops file in Drivers directory
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\Notepad.exeNotepad.exe C:\Users\Admin\Desktop\Rkill.txt3⤵
- Opens file in notepad (likely ransom note)
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
symsrv.dll
symsrv.dll.000
2024-08-17_e5d2dcb1faba5099a160d9b7fab49223_floxif_mafia64.exe
Rkill.txt
Rkill.txt
memory/1752-5-0x00000000008F1000-0x00000000008F2000-memory.dmp
memory/1752-20-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1752-21-0x00000000008F0000-0x0000000000AAE000-memory.dmp
memory/1752-23-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1752-27-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1752-3-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1752-33-0x0000000010000000-0x0000000010030000-memory.dmp
memory/1752-37-0x00000000008F0000-0x0000000000AAE000-memory.dmp
memory/1752-39-0x0000000010000000-0x0000000010030000-memory.dmp