Analysis
- max time kernel
116s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
21/11/2022, 03:22
General
- Target file.exe
- Size 351KB
- Sample221121-dwwxysbf72
- SHA256 fbcd823b376cfb88ab9f8a9740b82a5dbe6c694386c8a66484e4110c82b2b527
Malware Config
Extracted
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amadey
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3.50
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193.56.146.194/h49vlBP/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 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.
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of WriteProcessMemory 23 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\1000113001\linda5.exe"C:\Users\Admin\AppData\Local\Temp\1000113001\linda5.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\control.exe"C:\Windows\System32\control.exe" "C:\Users\Admin\AppData\Local\Temp\JF3S.cPL",4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Temp\JF3S.cPL",5⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\RunDll32.exeC:\Windows\system32\RunDll32.exe Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Temp\JF3S.cPL",6⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exe"C:\Windows\SysWOW64\rundll32.exe" "C:\Windows\SysWOW64\shell32.dll",#44 "C:\Users\Admin\AppData\Local\Temp\JF3S.cPL",7⤵
- 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 3368 -s 11402⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3368 -ip 33681⤵
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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 3456 -s 4282⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3456 -ip 34561⤵
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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 4424 -s 4282⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4424 -ip 44241⤵
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
JF3S.cPL
JF3s.cpl
JF3s.cpl
JF3s.cpl
cred64.dll
cred64.dll
memory/2352-150-0x000000000069B000-0x00000000006BA000-memory.dmp
memory/2352-139-0x000000000069B000-0x00000000006BA000-memory.dmp
memory/2352-140-0x0000000000400000-0x000000000045E000-memory.dmp
memory/2352-151-0x0000000000400000-0x000000000045E000-memory.dmp
memory/3368-135-0x00000000005DC000-0x00000000005FB000-memory.dmp
memory/3368-136-0x0000000002060000-0x000000000209E000-memory.dmp
memory/3368-137-0x0000000000400000-0x000000000045E000-memory.dmp
memory/3456-173-0x00000000005FE000-0x000000000061D000-memory.dmp
memory/3456-174-0x0000000000400000-0x000000000045E000-memory.dmp
memory/3460-152-0x0000000002F30000-0x0000000002FF9000-memory.dmp
memory/3460-169-0x0000000003360000-0x0000000003458000-memory.dmp
memory/3460-149-0x0000000003360000-0x0000000003458000-memory.dmp
memory/3460-148-0x0000000003140000-0x000000000325C000-memory.dmp
memory/3460-153-0x0000000003460000-0x0000000003515000-memory.dmp
memory/4424-176-0x00000000006FF000-0x000000000071D000-memory.dmp
memory/4424-177-0x0000000000400000-0x000000000045E000-memory.dmp
memory/4648-168-0x0000000002BA0000-0x0000000002C98000-memory.dmp
memory/4648-165-0x0000000002D70000-0x0000000002E25000-memory.dmp
memory/4648-164-0x0000000002CA0000-0x0000000002D69000-memory.dmp
memory/4648-162-0x0000000002BA0000-0x0000000002C98000-memory.dmp
memory/4648-161-0x0000000002980000-0x0000000002A9C000-memory.dmp
memory/4648-160-0x0000000002570000-0x0000000002710000-memory.dmp