Analysis
- max time kernel
113s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
23/12/2022, 04:22
General
- Target 78dcabf43c37ad47bc82168e0a6ce1ff.exe
- Size 352KB
- Sample221223-ey9ghafg86
- SHA256 7ebd56c5e322bbd1dcc354b392b8ca97cdd758f479104b91b6c2136bfd8bb357
Malware Config
Extracted
-
amadey
-
3.61
-
62.204.41.79/U7vfDb3kg/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
- 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
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C:\Users\Admin\AppData\Local\Temp\78dcabf43c37ad47bc82168e0a6ce1ff.exe"C:\Users\Admin\AppData\Local\Temp\78dcabf43c37ad47bc82168e0a6ce1ff.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\35731ceaf0\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\35731ceaf0\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\bf045808586a24\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 1168 -s 11362⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1168 -ip 11681⤵
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C:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4564 -s 4162⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 4564 -ip 45641⤵
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C:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exeC:\Users\Admin\AppData\Local\Temp\35731ceaf0\gntuud.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4932 -s 4242⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4932 -ip 49321⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
gntuud.exe
gntuud.exe
gntuud.exe
gntuud.exe
cred64.dll
cred64.dll
cred64.dll
memory/1168-137-0x0000000000400000-0x000000000045E000-memory.dmp
memory/1168-136-0x0000000002190000-0x00000000021CC000-memory.dmp
memory/1168-135-0x00000000004BE000-0x00000000004DC000-memory.dmp
memory/1876-140-0x0000000000400000-0x000000000045E000-memory.dmp
memory/1876-139-0x00000000005DE000-0x00000000005FD000-memory.dmp
memory/4264-148-0x00000000003A0000-0x00000000003C4000-memory.dmp
memory/4564-142-0x00000000005D3000-0x00000000005F1000-memory.dmp
memory/4564-143-0x0000000000400000-0x000000000045E000-memory.dmp
memory/4932-150-0x0000000000663000-0x0000000000681000-memory.dmp
memory/4932-151-0x0000000000400000-0x000000000045E000-memory.dmp