Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240910-en - resource tags
- submitted
11/09/2024, 02:04
General
- Target c48f1de0970d71f329c221b63b23ba67f615d5f10f1a208305623698d979deed.exe
- Size 857KB
- Sample240911-chmlpaxaql
- SHA256 c48f1de0970d71f329c221b63b23ba67f615d5f10f1a208305623698d979deed
Malware Config
Signatures
- Floxif, Floodfix
Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.
- Detects Floxif payload 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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 4 IoCs
- UPX packed file 12 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- 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 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\c48f1de0970d71f329c221b63b23ba67f615d5f10f1a208305623698d979deed.exe"C:\Users\Admin\AppData\Local\Temp\c48f1de0970d71f329c221b63b23ba67f615d5f10f1a208305623698d979deed.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\c48f1de0970d71f329c221b63b23ba67f615d5f10f1a208305623698d979deed.exe"C:\Users\Admin\AppData\Local\Temp\c48f1de0970d71f329c221b63b23ba67f615d5f10f1a208305623698d979deed.exe" -sfxwaitall:0 "dChanger_x64.exe"2⤵
- Checks computer location settings
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\dChanger_x64.exe"C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\dChanger_x64.exe"3⤵
- Executes dropped EXE
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
symsrv.dll
symsrv.dll.000
dChanger.ini
dChanger_x64.exe
memory/116-38-0x0000000000580000-0x00000000005B0000-memory.dmp
memory/116-36-0x0000000010000000-0x0000000010030000-memory.dmp
memory/116-19-0x0000000000580000-0x00000000005B0000-memory.dmp
memory/116-15-0x0000000010000000-0x0000000010030000-memory.dmp
memory/116-18-0x0000000000580000-0x00000000005B0000-memory.dmp
memory/116-37-0x0000000000580000-0x00000000005B0000-memory.dmp
memory/116-35-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2816-31-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2816-0-0x0000000000400000-0x0000000000438000-memory.dmp
memory/2816-32-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2816-40-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2816-48-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2816-4-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2816-54-0x0000000010000000-0x0000000010030000-memory.dmp
memory/2816-60-0x0000000010000000-0x0000000010030000-memory.dmp