Analysis
- max time kernel
159s - max time network
167s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
05/01/2024, 02:54
General
- Target 567ec8bc580c53a36cc7cb7f0fd195e9.exe
- Size 229KB
- Sample240105-dd46lshff2
- SHA256 7bc78ae29f7bd99effbd39d5b86be6cbd1928affcddf0e3405d01d8292cc4bac
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.
- Looks for VMWare services registry key. 1 TTPs 1 IoCs
- 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 2 IoCs
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- NSIS installer 3 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 30 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 20 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\567ec8bc580c53a36cc7cb7f0fd195e9.exe"C:\Users\Admin\AppData\Local\Temp\567ec8bc580c53a36cc7cb7f0fd195e9.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\567ec8bc580c53a36cc7cb7f0fd195e9.exe"C:\Users\Admin\AppData\Local\Temp\567ec8bc580c53a36cc7cb7f0fd195e9.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Users\Admin\AppData\Local\Temp\748F.exeC:\Users\Admin\AppData\Local\Temp\748F.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 behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2640 -s 11403⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\7DD7.exeC:\Users\Admin\AppData\Local\Temp\7DD7.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⤵
- Looks for VMWare services registry key.
- Executes dropped EXE
- Loads dropped DLL
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2640 -ip 26401⤵
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
Loading Replay Monitor...
Downloads
748F.exe
7DD7.exe
WindowsUpdater.exe
lib.dll
System.dll
memory/1372-35-0x0000000074240000-0x0000000074314000-memory.dmp
memory/1372-34-0x0000000002820000-0x0000000002821000-memory.dmp
memory/1372-16-0x0000000000010000-0x000000000006D000-memory.dmp
memory/1372-24-0x00000000022B0000-0x0000000002316000-memory.dmp
memory/1372-25-0x00000000007E0000-0x00000000007ED000-memory.dmp
memory/1372-26-0x0000000076F04000-0x0000000076F05000-memory.dmp
memory/1372-27-0x00000000022B0000-0x0000000002316000-memory.dmp
memory/1372-29-0x0000000002800000-0x0000000002801000-memory.dmp
memory/1372-30-0x0000000002830000-0x000000000283C000-memory.dmp
memory/1372-31-0x00000000022B0000-0x0000000002316000-memory.dmp
memory/1372-37-0x00000000022B0000-0x0000000002316000-memory.dmp
memory/2548-48-0x0000000000BF0000-0x0000000001186000-memory.dmp
memory/2548-22-0x0000000000BF0000-0x0000000001186000-memory.dmp
memory/2564-52-0x00000000021C0000-0x0000000002284000-memory.dmp
memory/2564-49-0x00000000021C0000-0x0000000002284000-memory.dmp
memory/2564-70-0x0000000072550000-0x0000000072C67000-memory.dmp
memory/2564-69-0x00000000021C0000-0x0000000002284000-memory.dmp
memory/2564-56-0x0000000002320000-0x0000000002321000-memory.dmp
memory/2564-55-0x00000000021C0000-0x0000000002284000-memory.dmp
memory/2564-53-0x00000000021C0000-0x0000000002284000-memory.dmp
memory/2564-51-0x00000000021C0000-0x0000000002284000-memory.dmp
memory/2564-50-0x0000000076ED3000-0x0000000076ED4000-memory.dmp
memory/2636-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2636-6-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2636-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2640-36-0x00000000008E0000-0x0000000000D14000-memory.dmp
memory/2640-42-0x0000000000890000-0x000000000089D000-memory.dmp
memory/2640-41-0x0000000000500000-0x00000000005C4000-memory.dmp
memory/2640-39-0x0000000000500000-0x00000000005C4000-memory.dmp
memory/2640-66-0x00000000008E0000-0x0000000000D13000-memory.dmp
memory/2640-32-0x00000000008E0000-0x0000000000D14000-memory.dmp
memory/2640-71-0x0000000002C20000-0x0000000002C22000-memory.dmp
memory/2640-74-0x0000000000500000-0x00000000005C4000-memory.dmp
memory/3480-2-0x0000000002180000-0x0000000002189000-memory.dmp
memory/3480-1-0x0000000000780000-0x0000000000880000-memory.dmp
memory/3580-5-0x0000000006EB0000-0x0000000006EC6000-memory.dmp