Analysis
- max time kernel
125s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
17/11/2022, 00:51
General
- Target file.exe
- Size 279KB
- Sample221117-a7g2dsdd64
- SHA256 21296d1d8d43c05a13a602ef5dcfc57c3ede4e48759534543c93ef1291457517
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 3 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
-
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\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
-
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)
-
-
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
-
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\System32\regsvr32.exe" -u BtL9TTX.VM -S4⤵
- Loads dropped DLL
-
-
-
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
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4780 -s 11362⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4780 -ip 47801⤵
-
C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeC:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3672 -s 4162⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3672 -ip 36721⤵
-
C:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exeC:\Users\Admin\AppData\Local\Temp\50c1695437\rovwer.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 944 -s 4202⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 944 -ip 9441⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
linda5.exe
linda5.exe
rovwer.exe
rovwer.exe
rovwer.exe
rovwer.exe
BtL9TTX.VM
Btl9TTX.VM
cred64.dll
cred64.dll
cred64.dll
memory/944-167-0x000000000093A000-0x0000000000959000-memory.dmp
memory/944-168-0x0000000000400000-0x0000000000848000-memory.dmp
memory/944-169-0x0000000000400000-0x0000000000848000-memory.dmp
memory/1776-155-0x0000000003280000-0x00000000033C1000-memory.dmp
memory/1776-149-0x0000000002FD0000-0x000000000313F000-memory.dmp
memory/1776-150-0x0000000003280000-0x00000000033C1000-memory.dmp
memory/1776-151-0x00000000033D0000-0x00000000034A1000-memory.dmp
memory/1776-152-0x00000000034B0000-0x000000000356C000-memory.dmp
memory/2088-141-0x0000000000400000-0x0000000000848000-memory.dmp
memory/2088-140-0x0000000000B46000-0x0000000000B65000-memory.dmp
memory/2088-157-0x0000000000400000-0x0000000000848000-memory.dmp
memory/2088-156-0x0000000000B46000-0x0000000000B65000-memory.dmp
memory/3672-165-0x0000000000400000-0x0000000000848000-memory.dmp
memory/3672-164-0x00000000009EA000-0x0000000000A09000-memory.dmp
memory/3696-163-0x0000000000500000-0x0000000000524000-memory.dmp
memory/4780-139-0x0000000000C70000-0x0000000000CAE000-memory.dmp
memory/4780-132-0x0000000000937000-0x0000000000956000-memory.dmp
memory/4780-138-0x0000000000937000-0x0000000000956000-memory.dmp
memory/4780-137-0x0000000000400000-0x0000000000848000-memory.dmp
memory/4780-133-0x0000000000C70000-0x0000000000CAE000-memory.dmp