Analysis
- max time kernel
153s - max time network
168s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
27/11/2022, 19:57
General
- Target file.exe
- Size 206KB
- Sample221127-yn8xrseb86
- SHA256 5d2de95a83de38751787a33f6d8d2977b49ec8a486f1cf75bce68fb6948ad817
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
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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 5104 -s 11922⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5104 -ip 51041⤵
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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 1900 -s 4202⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 1900 -ip 19001⤵
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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 2876 -s 4202⤵
- Program crash
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-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2876 -ip 28761⤵
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/1900-154-0x0000000000400000-0x0000000000469000-memory.dmp
memory/1900-153-0x000000000074F000-0x000000000076E000-memory.dmp
memory/2876-157-0x0000000000400000-0x0000000000469000-memory.dmp
memory/2876-156-0x00000000007DF000-0x00000000007FE000-memory.dmp
memory/3612-143-0x000000000070D000-0x000000000072C000-memory.dmp
memory/3612-140-0x000000000070D000-0x000000000072C000-memory.dmp
memory/3612-141-0x0000000000400000-0x0000000000469000-memory.dmp
memory/3612-144-0x0000000000400000-0x0000000000469000-memory.dmp
memory/4036-152-0x00000000006A0000-0x00000000006C4000-memory.dmp
memory/5104-132-0x00000000006AD000-0x00000000006CC000-memory.dmp
memory/5104-134-0x0000000000400000-0x0000000000469000-memory.dmp
memory/5104-135-0x00000000006AD000-0x00000000006CC000-memory.dmp
memory/5104-146-0x0000000000400000-0x0000000000469000-memory.dmp
memory/5104-133-0x00000000005F0000-0x000000000062E000-memory.dmp
memory/5104-145-0x00000000006AD000-0x00000000006CC000-memory.dmp
memory/5104-136-0x00000000005F0000-0x000000000062E000-memory.dmp