Analysis
- max time kernel
180s - max time network
191s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
26/11/2022, 08:11
General
- Target file.exe
- Size 205KB
- Sample221126-j29znaea47
- SHA256 5f22145a6c9eaf18ed703c43b3b8f03b1db4dab9218e06ecbf3d82ae9f9e4d10
Malware Config
Extracted
-
amadey
-
3.50
-
31.41.244.17/hfk3vK9/index.php
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- Detect Amadey credential stealer module 4 IoCs
- Blocklisted process makes network request 1 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 3 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 2 IoCs
- Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 3 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gntuud.exe /TR "C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe" /F3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\56a1c3d463f381\cred64.dll, Main3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- outlook_win_path
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 844 -s 12522⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 844 -ip 8441⤵
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2348 -s 4162⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 2348 -ip 23481⤵
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4752 -s 4162⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4752 -ip 47521⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
gntuud.exe
gntuud.exe
gntuud.exe
gntuud.exe
cred64.dll
cred64.dll
cred64.dll
memory/844-141-0x0000000000400000-0x0000000000AE5000-memory.dmp
memory/844-140-0x0000000000E1D000-0x0000000000E3C000-memory.dmp
memory/844-132-0x0000000000E1D000-0x0000000000E3C000-memory.dmp
memory/844-133-0x0000000000DB0000-0x0000000000DEE000-memory.dmp
memory/844-134-0x0000000000400000-0x0000000000AE5000-memory.dmp
memory/1528-139-0x0000000000400000-0x0000000000AE5000-memory.dmp
memory/1528-143-0x0000000000400000-0x0000000000AE5000-memory.dmp
memory/1528-138-0x0000000000DAC000-0x0000000000DCB000-memory.dmp
memory/2348-145-0x0000000000BB0000-0x0000000000BCF000-memory.dmp
memory/2348-146-0x0000000000400000-0x0000000000AE5000-memory.dmp
memory/3696-151-0x0000000000AC0000-0x0000000000AE4000-memory.dmp
memory/4752-153-0x0000000000BA0000-0x0000000000BBF000-memory.dmp
memory/4752-154-0x0000000000400000-0x0000000000AE5000-memory.dmp