Analysis
- max time kernel
150s - max time network
126s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
20/03/2024, 14:06
General
- Target 0d16c73f31f81df2059621ce4e8a9330.exe
- Size 308KB
- Sample240320-red8gaab57
- SHA256 bec5e37cf9e9ffc78bb82451a60fcde0b7dde3ff43bb9c5a9ae8761692ace613
Malware Config
Signatures
- Stealc
Stealc is an infostealer written in C++.
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 3 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 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 physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\0d16c73f31f81df2059621ce4e8a9330.exe"C:\Users\Admin\AppData\Local\Temp\0d16c73f31f81df2059621ce4e8a9330.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KFCFIEHCFI.exe"2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\KFCFIEHCFI.exe"C:\Users\Admin\AppData\Local\Temp\KFCFIEHCFI.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\KFCFIEHCFI.exe4⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30005⤵
- Runs ping.exe
-
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
KFCFIEHCFI.exe
mozglue.dll
nss3.dll
memory/2800-42-0x0000000000400000-0x0000000002D4B000-memory.dmp
memory/2800-3-0x0000000000400000-0x0000000002D4B000-memory.dmp
memory/2800-4-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2800-64-0x0000000000400000-0x0000000002D4B000-memory.dmp
memory/2800-65-0x0000000002DF0000-0x0000000002EF0000-memory.dmp
memory/2800-66-0x0000000000220000-0x0000000000247000-memory.dmp
memory/2800-75-0x0000000000400000-0x0000000002D4B000-memory.dmp
memory/2800-1-0x0000000002DF0000-0x0000000002EF0000-memory.dmp
memory/2800-2-0x0000000000220000-0x0000000000247000-memory.dmp
memory/2984-79-0x00000000732B0000-0x000000007399E000-memory.dmp
memory/2984-80-0x0000000000DB0000-0x0000000000DCE000-memory.dmp
memory/2984-81-0x0000000004D60000-0x0000000004DA0000-memory.dmp
memory/2984-83-0x00000000732B0000-0x000000007399E000-memory.dmp
memory/2984-84-0x0000000004D60000-0x0000000004DA0000-memory.dmp