Analysis
- max time kernel
207s - max time network
215s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
05/12/2022, 17:16
General
- Target file.exe
- Size 332KB
- Sample221205-vs48laaa73
- SHA256 7c8da0a30496367922885931c4744e8a844dfd1f3cd3333253a92af768e9aba8
Malware Config
Extracted
-
amadey
-
3.50
-
62.204.41.6/p9cWxH/index.php
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- Detect Amadey credential stealer module 2 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 1 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- 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 2 IoCs
- Suspicious use of WriteProcessMemory 9 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\99e342142d\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\99e342142d\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\99e342142d\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\a091ec0a6e2227\cred64.dll, Main3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
-
-
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C:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exeC:\Users\Admin\AppData\Local\Temp\99e342142d\gntuud.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
gntuud.exe
gntuud.exe
gntuud.exe
cred64.dll
cred64.dll
memory/1500-142-0x0000000000748000-0x0000000000767000-memory.dmp
memory/1500-143-0x0000000000400000-0x0000000000471000-memory.dmp
memory/4072-141-0x0000000000400000-0x0000000000471000-memory.dmp
memory/4072-140-0x00000000005F0000-0x000000000062E000-memory.dmp
memory/4072-139-0x00000000004C9000-0x00000000004E8000-memory.dmp
memory/4072-132-0x00000000004C9000-0x00000000004E8000-memory.dmp
memory/4072-135-0x0000000000400000-0x0000000000471000-memory.dmp
memory/4072-134-0x00000000004C9000-0x00000000004E8000-memory.dmp
memory/4072-133-0x00000000005F0000-0x000000000062E000-memory.dmp
memory/4760-147-0x0000000000400000-0x0000000000471000-memory.dmp
memory/4760-146-0x000000000062B000-0x000000000064A000-memory.dmp