Analysis
- max time kernel
151s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20230831-en - resource tags
- submitted
10/09/2023, 22:26
General
- Target 473b20454e5d696d377335377189027f.exe
- Size 247KB
- Sample230910-2cgwpaca3v
- SHA256 f2eec5ba2e7c48a086cac282dee807985a59d77c3a4fc4801466b0bae09bc45b
Malware Config
Extracted
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smokeloader
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2022
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http://77.91.68.29/fks/
Extracted
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amadey
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3.83
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http://5.42.65.80/8bmeVwqx/index.php
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install_dir
207aa4515d
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install_file
oneetx.exe
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strings_key
3e634dd0840c68ae2ced83c2be7bf0d4
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 3 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 5 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Uses the VBS compiler for execution 1 TTPs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in System32 directory 1 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 22 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 47 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\473b20454e5d696d377335377189027f.exe"C:\Users\Admin\AppData\Local\Temp\473b20454e5d696d377335377189027f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2252 -s 3002⤵
- Program crash
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2252 -ip 22521⤵
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C:\Users\Admin\AppData\Local\Temp\EFCA.exeC:\Users\Admin\AppData\Local\Temp\EFCA.exe1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\F23C.exeC:\Users\Admin\AppData\Local\Temp\F23C.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\207aa4515d\oneetx.exe"C:\Users\Admin\AppData\Local\Temp\207aa4515d\oneetx.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN oneetx.exe /TR "C:\Users\Admin\AppData\Local\Temp\207aa4515d\oneetx.exe" /F3⤵
- Creates scheduled task(s)
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k echo Y|CACLS "oneetx.exe" /P "Admin:N"&&CACLS "oneetx.exe" /P "Admin:R" /E&&echo Y|CACLS "..\207aa4515d" /P "Admin:N"&&CACLS "..\207aa4515d" /P "Admin:R" /E&&Exit3⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"4⤵
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C:\Windows\SysWOW64\cacls.exeCACLS "oneetx.exe" /P "Admin:N"4⤵
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C:\Windows\SysWOW64\cacls.exeCACLS "oneetx.exe" /P "Admin:R" /E4⤵
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo Y"4⤵
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C:\Windows\SysWOW64\cacls.exeCACLS "..\207aa4515d" /P "Admin:N"4⤵
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C:\Windows\SysWOW64\cacls.exeCACLS "..\207aa4515d" /P "Admin:R" /E4⤵
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C:\Users\Admin\AppData\Local\Temp\F385.exeC:\Users\Admin\AppData\Local\Temp\F385.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\207aa4515d\oneetx.exeC:\Users\Admin\AppData\Local\Temp\207aa4515d\oneetx.exe1⤵
- Executes dropped EXE
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
oneetx.exe
oneetx.exe
oneetx.exe
oneetx.exe
EFCA.exe
EFCA.exe
F23C.exe
F23C.exe
F385.exe
F385.exe
memory/2496-42-0x0000000007A60000-0x0000000007A70000-memory.dmp
memory/2496-64-0x000000000A540000-0x000000000A702000-memory.dmp
memory/2496-22-0x0000000000400000-0x000000000045A000-memory.dmp
memory/2496-69-0x0000000074860000-0x0000000075010000-memory.dmp
memory/2496-67-0x0000000007A60000-0x0000000007A70000-memory.dmp
memory/2496-37-0x0000000074860000-0x0000000075010000-memory.dmp
memory/2496-65-0x000000000AC40000-0x000000000B16C000-memory.dmp
memory/2496-58-0x0000000008620000-0x0000000008686000-memory.dmp
memory/2496-40-0x0000000007AC0000-0x0000000007B52000-memory.dmp
memory/2496-63-0x0000000009560000-0x00000000095B0000-memory.dmp
memory/2496-62-0x0000000074860000-0x0000000075010000-memory.dmp
memory/2496-60-0x0000000002EB0000-0x0000000002ECE000-memory.dmp
memory/2496-59-0x00000000093C0000-0x0000000009436000-memory.dmp
memory/2496-44-0x0000000008BA0000-0x00000000091B8000-memory.dmp
memory/2496-48-0x0000000007E30000-0x0000000007F3A000-memory.dmp
memory/3204-9-0x00000000034A0000-0x00000000034B6000-memory.dmp
memory/4364-61-0x0000000074860000-0x0000000075010000-memory.dmp
memory/4364-38-0x0000000000C60000-0x0000000000CBA000-memory.dmp
memory/4364-54-0x0000000007E60000-0x0000000007E9C000-memory.dmp
memory/4364-71-0x0000000074860000-0x0000000075010000-memory.dmp
memory/4364-45-0x0000000007E00000-0x0000000007E12000-memory.dmp
memory/4364-43-0x0000000007C30000-0x0000000007C3A000-memory.dmp
memory/4364-36-0x0000000074860000-0x0000000075010000-memory.dmp
memory/4364-66-0x0000000007DA0000-0x0000000007DB0000-memory.dmp
memory/4364-41-0x0000000007DA0000-0x0000000007DB0000-memory.dmp
memory/4364-39-0x0000000008090000-0x0000000008634000-memory.dmp
memory/4732-11-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4732-1-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4732-2-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4964-31-0x0000000000D90000-0x0000000000F1E000-memory.dmp
memory/4964-21-0x0000000000D90000-0x0000000000F1E000-memory.dmp
memory/4964-19-0x0000000000D90000-0x0000000000F1E000-memory.dmp