Analysis
- max time kernel
151s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
01/12/2022, 05:16
General
- Target file.exe
- Size 243KB
- Sample221201-fx585agd49
- SHA256 a9b9cc10ed9a080760185fb10ad4737d60af919843bb4d7045717e01bf5ccc41
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 4 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
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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
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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)
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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
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1724 -s 11362⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1724 -ip 17241⤵
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1060 -s 4162⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1060 -ip 10601⤵
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C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4376 -s 4162⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4376 -ip 43761⤵
-
C:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\3f904562a0\gntuud.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
gntuud.exe
gntuud.exe
gntuud.exe
gntuud.exe
gntuud.exe
cred64.dll
cred64.dll
cred64.dll
memory/1060-146-0x000000000058C000-0x00000000005AB000-memory.dmp
memory/1060-147-0x0000000000400000-0x0000000000472000-memory.dmp
memory/1724-132-0x00000000006F9000-0x0000000000718000-memory.dmp
memory/1724-142-0x0000000000400000-0x0000000000472000-memory.dmp
memory/1724-141-0x00000000006F9000-0x0000000000718000-memory.dmp
memory/1724-133-0x00000000005C0000-0x00000000005FE000-memory.dmp
memory/1724-134-0x0000000000400000-0x0000000000472000-memory.dmp
memory/4060-152-0x00000000009F0000-0x0000000000A14000-memory.dmp
memory/4304-144-0x0000000000400000-0x0000000000472000-memory.dmp
memory/4304-143-0x0000000000758000-0x0000000000777000-memory.dmp
memory/4304-140-0x0000000000400000-0x0000000000472000-memory.dmp
memory/4304-139-0x0000000000758000-0x0000000000777000-memory.dmp
memory/4376-154-0x000000000063C000-0x000000000065B000-memory.dmp
memory/4376-155-0x0000000000400000-0x0000000000472000-memory.dmp