Analysis
- max time kernel
151s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
07/01/2024, 01:00
General
- Target 05d2cf367964e2a1f8c83a9df167e836.exe
- Size 178KB
- Sample240107-bcyakabdcq
- SHA256 0f73dc9673062de7bb486da601791e67e78e9aaae6a1dc5fabbdf5abe5fcc058
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
- 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 8 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 30 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\05d2cf367964e2a1f8c83a9df167e836.exe"C:\Users\Admin\AppData\Local\Temp\05d2cf367964e2a1f8c83a9df167e836.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\05d2cf367964e2a1f8c83a9df167e836.exe"C:\Users\Admin\AppData\Local\Temp\05d2cf367964e2a1f8c83a9df167e836.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Users\Admin\AppData\Local\Temp\2E4E.exeC:\Users\Admin\AppData\Local\Temp\2E4E.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 4548 -s 10723⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\37F4.exeC:\Users\Admin\AppData\Local\Temp\37F4.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 420 -p 4548 -ip 45481⤵
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
2E4E.exe
37F4.exe
37F4.exe
WindowsUpdater.exe
WindowsUpdater.exe
WindowsUpdater.exe
lib.dll
System.dll
memory/1916-33-0x0000000002800000-0x0000000002801000-memory.dmp
memory/1916-31-0x0000000000990000-0x00000000009F6000-memory.dmp
memory/1916-53-0x0000000002820000-0x0000000002821000-memory.dmp
memory/1916-17-0x0000000000010000-0x000000000006D000-memory.dmp
memory/1916-24-0x0000000000010000-0x000000000006D000-memory.dmp
memory/1916-26-0x0000000000010000-0x000000000006D000-memory.dmp
memory/1916-28-0x0000000000990000-0x00000000009F6000-memory.dmp
memory/1916-29-0x00000000004C0000-0x00000000004CD000-memory.dmp
memory/1916-30-0x0000000076F44000-0x0000000076F45000-memory.dmp
memory/1916-52-0x0000000000990000-0x00000000009F6000-memory.dmp
memory/1916-35-0x0000000000990000-0x00000000009F6000-memory.dmp
memory/1916-34-0x0000000002830000-0x000000000283C000-memory.dmp
memory/3100-1-0x0000000000BF0000-0x0000000000CF0000-memory.dmp
memory/3100-2-0x0000000000BB0000-0x0000000000BB9000-memory.dmp
memory/3456-6-0x00000000013A0000-0x00000000013B6000-memory.dmp
memory/3500-36-0x0000000000750000-0x0000000000CE6000-memory.dmp
memory/3500-48-0x0000000000750000-0x0000000000CE6000-memory.dmp
memory/3500-23-0x0000000000750000-0x0000000000CE6000-memory.dmp
memory/3732-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3732-5-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3732-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3732-7-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4548-46-0x0000000000F20000-0x0000000000FE4000-memory.dmp
memory/4548-47-0x0000000000F20000-0x0000000000FE4000-memory.dmp
memory/4548-43-0x0000000000FF0000-0x0000000001424000-memory.dmp
memory/4548-41-0x0000000000FF0000-0x0000000001424000-memory.dmp
memory/4548-51-0x0000000000F20000-0x0000000000FE4000-memory.dmp
memory/4548-65-0x0000000004E70000-0x0000000004E72000-memory.dmp
memory/4548-67-0x0000000000FF0000-0x0000000001423000-memory.dmp
memory/4548-68-0x0000000000F20000-0x0000000000FE4000-memory.dmp