Analysis
- max time kernel
117s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
04/11/2022, 13:06
General
- Target file.exe
- Size 330KB
- Sample221104-qb3afshder
- SHA256 fcb4d2d2fad77fd8ec906d4397b1f231bdeb425de168f79a826d8c9faf52033b
Malware Config
Extracted
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redline
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bred
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77.73.134.251:4691
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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
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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\1000001001\bre.exe"C:\Users\Admin\AppData\Local\Temp\1000001001\bre.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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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 448 -s 11362⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 448 -ip 4481⤵
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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 1248 -s 2162⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1248 -ip 12481⤵
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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 4956 -s 2282⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4956 -ip 49561⤵
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/448-135-0x0000000002D89000-0x0000000002DA8000-memory.dmp
memory/448-136-0x0000000002D00000-0x0000000002D3E000-memory.dmp
memory/448-137-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1248-161-0x0000000002DAB000-0x0000000002DCA000-memory.dmp
memory/1248-162-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/1248-163-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/4260-156-0x0000000006F70000-0x0000000006FC0000-memory.dmp
memory/4260-145-0x0000000005850000-0x0000000005E68000-memory.dmp
memory/4260-150-0x0000000006620000-0x0000000006BC4000-memory.dmp
memory/4260-151-0x0000000006210000-0x00000000062A2000-memory.dmp
memory/4260-152-0x00000000062B0000-0x0000000006316000-memory.dmp
memory/4260-153-0x0000000006DA0000-0x0000000006F62000-memory.dmp
memory/4260-154-0x00000000074A0000-0x00000000079CC000-memory.dmp
memory/4260-155-0x0000000006FF0000-0x0000000007066000-memory.dmp
memory/4260-144-0x0000000000940000-0x0000000000968000-memory.dmp
memory/4260-147-0x00000000052F0000-0x0000000005302000-memory.dmp
memory/4260-148-0x0000000005350000-0x000000000538C000-memory.dmp
memory/4260-146-0x00000000053C0000-0x00000000054CA000-memory.dmp
memory/4372-149-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/4372-140-0x0000000000400000-0x0000000002C41000-memory.dmp
memory/4372-139-0x0000000002F38000-0x0000000002F57000-memory.dmp
memory/4956-165-0x0000000002F6B000-0x0000000002F8A000-memory.dmp
memory/4956-166-0x0000000000400000-0x0000000002C41000-memory.dmp