Analysis
- max time kernel
104s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
09/01/2024, 16:24
General
- Target 26d9592bdfc0e1db9b25e7c3b6d232098bbd7a7ebe8c370df837002adc0f66e4.exe
- Size 312KB
- Sample240109-twexfafcf5
- SHA256 26d9592bdfc0e1db9b25e7c3b6d232098bbd7a7ebe8c370df837002adc0f66e4
Malware Config
Extracted
-
smokeloader
-
up3
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
- 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 WriteProcessMemory 12 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\26d9592bdfc0e1db9b25e7c3b6d232098bbd7a7ebe8c370df837002adc0f66e4.exe"C:\Users\Admin\AppData\Local\Temp\26d9592bdfc0e1db9b25e7c3b6d232098bbd7a7ebe8c370df837002adc0f66e4.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1988 -s 3682⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 1988 -ip 19881⤵
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
- 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 3324 -s 11362⤵
- Program crash
-
-
C:\Users\Admin\AppData\Local\Temp\C091.exeC:\Users\Admin\AppData\Local\Temp\C091.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:\Users\Admin\AppData\Local\Temp\C526.exeC:\Users\Admin\AppData\Local\Temp\C526.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 460 -p 3324 -ip 33241⤵
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
C091.exe
memory/440-15-0x0000000000010000-0x000000000006D000-memory.dmp
memory/440-34-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/440-18-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/440-24-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/440-23-0x0000000002830000-0x000000000283C000-memory.dmp
memory/440-22-0x0000000002800000-0x0000000002801000-memory.dmp
memory/440-21-0x0000000077394000-0x0000000077395000-memory.dmp
memory/440-20-0x0000000002640000-0x000000000264D000-memory.dmp
memory/440-17-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/1988-3-0x0000000000400000-0x000000000086F000-memory.dmp
memory/1988-8-0x0000000000400000-0x000000000086F000-memory.dmp
memory/1988-2-0x00000000009D0000-0x00000000009D9000-memory.dmp
memory/1988-1-0x0000000000A40000-0x0000000000B40000-memory.dmp
memory/3324-60-0x00000000047E0000-0x00000000047E2000-memory.dmp
memory/3324-29-0x0000000001000000-0x00000000010C4000-memory.dmp
memory/3324-31-0x0000000001000000-0x00000000010C4000-memory.dmp
memory/3324-27-0x0000000000810000-0x0000000000C44000-memory.dmp
memory/3324-32-0x0000000001390000-0x0000000001391000-memory.dmp
memory/3324-25-0x0000000000810000-0x0000000000C44000-memory.dmp
memory/3324-59-0x0000000001000000-0x00000000010C4000-memory.dmp
memory/3324-62-0x0000000000810000-0x0000000000C43000-memory.dmp
memory/3324-63-0x0000000001000000-0x00000000010C4000-memory.dmp
memory/3520-5-0x0000000003060000-0x0000000003076000-memory.dmp
memory/5188-40-0x0000000000BD0000-0x0000000001166000-memory.dmp
memory/5188-47-0x0000000000BD0000-0x0000000001166000-memory.dmp