Analysis
- max time kernel
154s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
17/11/2022, 01:02
General
- Target file.exe
- Size 279KB
- Sample221117-bdsfpsdd74
- SHA256 acceef266896cc8f9f72a4245a39cfce95afe0a55291bfc7ba9981aadc913621
Malware Config
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 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Loads dropped DLL 4 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
- Adds Run key to start application 2 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 15 IoCs
- outlook_win_path 1 IoCs
Processes
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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\50c1695437\rovwer.exe"C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN rovwer.exe /TR "C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe" /F3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\1000042001\linda5.exe"C:\Users\Admin\AppData\Local\Temp\1000042001\linda5.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" -u BtL9TTX.VM -S4⤵
- Loads dropped DLL
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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 4248 -s 12522⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4248 -ip 42481⤵
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeC:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 4162⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2252 -ip 22521⤵
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C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeC:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 400 -s 4162⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 400 -ip 4001⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
linda5.exe
linda5.exe
rovwer.exe
rovwer.exe
rovwer.exe
rovwer.exe
BtL9TTX.VM
Btl9TTX.VM
Btl9TTX.VM
cred64.dll
cred64.dll
cred64.dll
memory/400-170-0x0000000000400000-0x0000000000848000-memory.dmp
memory/400-169-0x0000000000A3A000-0x0000000000A59000-memory.dmp
memory/2252-161-0x0000000000B1A000-0x0000000000B39000-memory.dmp
memory/2252-162-0x0000000000400000-0x0000000000848000-memory.dmp
memory/2324-150-0x00000000021C0000-0x000000000244C000-memory.dmp
memory/2324-151-0x0000000002B90000-0x0000000002CFF000-memory.dmp
memory/2324-152-0x0000000002E40000-0x0000000002F81000-memory.dmp
memory/2324-153-0x0000000002FA0000-0x0000000003071000-memory.dmp
memory/2324-154-0x0000000003090000-0x000000000314C000-memory.dmp
memory/2324-157-0x0000000002E40000-0x0000000002F81000-memory.dmp
memory/3836-140-0x0000000000916000-0x0000000000935000-memory.dmp
memory/3836-159-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3836-158-0x0000000000916000-0x0000000000935000-memory.dmp
memory/3836-141-0x0000000000400000-0x0000000000848000-memory.dmp
memory/4248-138-0x0000000000BD7000-0x0000000000BF6000-memory.dmp
memory/4248-139-0x0000000000960000-0x000000000099E000-memory.dmp
memory/4248-137-0x0000000000400000-0x0000000000848000-memory.dmp
memory/4248-132-0x0000000000BD7000-0x0000000000BF6000-memory.dmp
memory/4248-133-0x0000000000960000-0x000000000099E000-memory.dmp
memory/4976-167-0x0000000000780000-0x00000000007A4000-memory.dmp