Analysis
- max time kernel
126s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
04/11/2022, 10:06
General
- Target file.exe
- Size 330KB
- Sample221104-l43pgaebd6
- SHA256 dbdadf05765358b5058dc06724aa5160a4ce7576ad41cb1074bd92c513188421
Malware Config
Extracted
-
redline
-
bred
-
77.73.134.251:4691
-
auth_value
0e8ad10c690c62fa90b012542647f121
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- Detect Amadey credential stealer module 2 IoCs
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 3 IoCs
- Blocklisted process makes network request 1 IoCs
- Downloads MZ/PE file
- Executes dropped EXE 4 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 6 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 12 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\e94c2b28f2\rovwer.exe"C:\Users\Admin\AppData\Local\Temp\e94c2b28f2\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\e94c2b28f2\rovwer.exe" /F3⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\1000011001\bre.exe"C:\Users\Admin\AppData\Local\Temp\1000011001\bre.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\rundll32.exe"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\80b59841e5c623\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 1444 -s 11442⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1444 -ip 14441⤵
-
C:\Users\Admin\AppData\Local\Temp\e94c2b28f2\rovwer.exeC:\Users\Admin\AppData\Local\Temp\e94c2b28f2\rovwer.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2860 -s 4242⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2860 -ip 28601⤵
-
C:\Users\Admin\AppData\Local\Temp\e94c2b28f2\rovwer.exeC:\Users\Admin\AppData\Local\Temp\e94c2b28f2\rovwer.exe1⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 380 -s 4162⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 380 -ip 3801⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
bre.exe
bre.exe
rovwer.exe
rovwer.exe
rovwer.exe
rovwer.exe
cred64.dll
cred64.dll
memory/380-167-0x0000000002EEB000-0x0000000002F0A000-memory.dmp
memory/380-169-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/380-168-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1444-132-0x0000000002F79000-0x0000000002F98000-memory.dmp
memory/1444-139-0x0000000002D90000-0x0000000002DCE000-memory.dmp
memory/1444-138-0x0000000002F79000-0x0000000002F98000-memory.dmp
memory/1444-137-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1444-133-0x0000000002D90000-0x0000000002DCE000-memory.dmp
memory/1804-145-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1804-141-0x0000000002EC8000-0x0000000002EE7000-memory.dmp
memory/1804-151-0x0000000002EC8000-0x0000000002EE7000-memory.dmp
memory/1804-154-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/2860-162-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/2860-161-0x0000000002E2B000-0x0000000002E4A000-memory.dmp
memory/3708-150-0x0000000004B60000-0x0000000004B9C000-memory.dmp
memory/3708-157-0x0000000006BA0000-0x00000000070CC000-memory.dmp
memory/3708-158-0x0000000006350000-0x00000000063C6000-memory.dmp
memory/3708-159-0x00000000063D0000-0x0000000006420000-memory.dmp
memory/3708-156-0x00000000064A0000-0x0000000006662000-memory.dmp
memory/3708-155-0x0000000004F40000-0x0000000004FA6000-memory.dmp
memory/3708-153-0x0000000005C20000-0x00000000061C4000-memory.dmp
memory/3708-152-0x0000000004EA0000-0x0000000004F32000-memory.dmp
memory/3708-149-0x0000000004B00000-0x0000000004B12000-memory.dmp
memory/3708-148-0x0000000004BD0000-0x0000000004CDA000-memory.dmp
memory/3708-147-0x0000000005050000-0x0000000005668000-memory.dmp
memory/3708-146-0x0000000000150000-0x0000000000178000-memory.dmp