Analysis
- max time kernel
106s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
08/12/2022, 01:01
General
- Target file.exe
- Size 322KB
- Sample221208-bc8rasgf64
- SHA256 c3c4bcbce447663cbfdf28fb6a86e3f37633ecc21b508c3bfb965a7f89590cb9
Malware Config
Extracted
-
amadey
-
3.50
-
77.73.133.72/hfk3vK9/index.php
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- Detect Amadey credential stealer module 2 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 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.
- 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
-
C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe"C:\Users\Admin\AppData\Local\Temp\ecaac49691\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\ecaac49691\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\f49dfc5e4e2508\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 4180 -s 12162⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4180 -ip 41801⤵
-
C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exeC:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe1⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4840 -s 4402⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4840 -ip 48401⤵
-
C:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exeC:\Users\Admin\AppData\Local\Temp\ecaac49691\gntuud.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 4242⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2944 -ip 29441⤵
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
memory/2944-150-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2944-149-0x0000000000674000-0x0000000000692000-memory.dmp
memory/2960-139-0x0000000000543000-0x0000000000562000-memory.dmp
memory/2960-140-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2960-141-0x0000000000400000-0x000000000046D000-memory.dmp
memory/4180-135-0x00000000007A3000-0x00000000007C2000-memory.dmp
memory/4180-137-0x0000000000400000-0x000000000046D000-memory.dmp
memory/4180-136-0x00000000005E0000-0x000000000061E000-memory.dmp
memory/4840-144-0x0000000000400000-0x000000000046D000-memory.dmp
memory/4840-143-0x0000000000714000-0x0000000000732000-memory.dmp