Analysis
- max time kernel
147s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
12/01/2024, 10:51
General
- Target ff5018aa96d03981958cc226c3b2aa40.exe
- Size 289KB
- Sample240112-mx84caeeaj
- SHA256 fd68ed7ff3adfd19b32efde83d13edb583c7d756d0780d079efac6d09ff8bbb4
Malware Config
Extracted
-
smokeloader
-
pub1
Extracted
-
smokeloader
-
2020
-
http://host-file-host6.com/
-
http://host-host-file8.com/
Signatures
- BetaBot
Beta Bot is a Trojan that infects computers and disables Antivirus.
- Modifies firewall policy service 2 TTPs 4 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Sets file execution options in registry 2 TTPs 4 IoCs
- Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Deletes itself 1 IoCs
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 2 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 4 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
- Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 32 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 18 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
-
C:\Users\Admin\AppData\Local\Temp\ff5018aa96d03981958cc226c3b2aa40.exe"C:\Users\Admin\AppData\Local\Temp\ff5018aa96d03981958cc226c3b2aa40.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ff5018aa96d03981958cc226c3b2aa40.exe"C:\Users\Admin\AppData\Local\Temp\ff5018aa96d03981958cc226c3b2aa40.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3888 -s 3283⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3888 -ip 38881⤵
-
C:\Users\Admin\AppData\Local\Temp\949F.exeC:\Users\Admin\AppData\Local\Temp\949F.exe1⤵
- Sets file execution options in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe2⤵
- Modifies firewall policy service
- Sets file execution options in registry
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4492 -s 10803⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\9B85.exeC:\Users\Admin\AppData\Local\Temp\9B85.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 372 -p 4492 -ip 44921⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
949F.exe
memory/1444-48-0x0000000000C50000-0x00000000011E6000-memory.dmp
memory/1444-41-0x0000000000C50000-0x00000000011E6000-memory.dmp
memory/1496-2-0x00000000005B0000-0x00000000005B9000-memory.dmp
memory/1496-1-0x00000000005D0000-0x00000000006D0000-memory.dmp
memory/3628-5-0x00000000070A0000-0x00000000070B6000-memory.dmp
memory/3888-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3888-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3888-8-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4404-21-0x0000000000830000-0x0000000000896000-memory.dmp
memory/4404-16-0x0000000000010000-0x000000000006D000-memory.dmp
memory/4404-23-0x00000000026C0000-0x00000000026C1000-memory.dmp
memory/4404-25-0x0000000000830000-0x0000000000896000-memory.dmp
memory/4404-20-0x00000000779F4000-0x00000000779F5000-memory.dmp
memory/4404-19-0x00000000005E0000-0x00000000005ED000-memory.dmp
memory/4404-24-0x00000000026F0000-0x00000000026FC000-memory.dmp
memory/4404-18-0x0000000000830000-0x0000000000896000-memory.dmp
memory/4404-34-0x0000000000830000-0x0000000000896000-memory.dmp
memory/4492-30-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/4492-32-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/4492-35-0x0000000002EB0000-0x0000000002EB1000-memory.dmp
memory/4492-28-0x0000000000480000-0x00000000008B4000-memory.dmp
memory/4492-26-0x0000000000480000-0x00000000008B4000-memory.dmp
memory/4492-64-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/4492-63-0x0000000000480000-0x00000000008B3000-memory.dmp
memory/4492-61-0x0000000004A60000-0x0000000004A62000-memory.dmp
memory/4492-60-0x0000000001200000-0x00000000012C4000-memory.dmp