Analysis
- max time kernel
137s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
03/01/2024, 15:30
General
- Target 9c98f0f798b53d28919e7c8f7331619c509e24045d1f4dd192f86f2a6115d483.exe
- Size 203KB
- Sample240103-sxp85afgfk
- SHA256 9c98f0f798b53d28919e7c8f7331619c509e24045d1f4dd192f86f2a6115d483
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 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 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\9c98f0f798b53d28919e7c8f7331619c509e24045d1f4dd192f86f2a6115d483.exe"C:\Users\Admin\AppData\Local\Temp\9c98f0f798b53d28919e7c8f7331619c509e24045d1f4dd192f86f2a6115d483.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\9c98f0f798b53d28919e7c8f7331619c509e24045d1f4dd192f86f2a6115d483.exe"C:\Users\Admin\AppData\Local\Temp\9c98f0f798b53d28919e7c8f7331619c509e24045d1f4dd192f86f2a6115d483.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
-
C:\Users\Admin\AppData\Local\Temp\E455.exeC:\Users\Admin\AppData\Local\Temp\E455.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 2168 -s 11403⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\ED30.exeC:\Users\Admin\AppData\Local\Temp\ED30.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 428 -p 2168 -ip 21681⤵
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
E455.exe
memory/528-66-0x0000000072AF0000-0x0000000073207000-memory.dmp
memory/528-60-0x0000000072AF0000-0x0000000073207000-memory.dmp
memory/1804-1-0x00000000006D0000-0x00000000007D0000-memory.dmp
memory/1804-2-0x0000000002180000-0x0000000002189000-memory.dmp
memory/2168-29-0x0000000000600000-0x00000000006C4000-memory.dmp
memory/2168-30-0x0000000000600000-0x00000000006C4000-memory.dmp
memory/2168-65-0x0000000000600000-0x00000000006C4000-memory.dmp
memory/2168-64-0x0000000000710000-0x0000000000B43000-memory.dmp
memory/2168-62-0x0000000004350000-0x0000000004352000-memory.dmp
memory/2168-61-0x0000000000600000-0x00000000006C4000-memory.dmp
memory/2168-32-0x0000000000600000-0x00000000006C4000-memory.dmp
memory/2168-26-0x0000000000710000-0x0000000000B44000-memory.dmp
memory/2168-28-0x0000000000710000-0x0000000000B44000-memory.dmp
memory/2248-48-0x00000000005F0000-0x0000000000B86000-memory.dmp
memory/2248-41-0x00000000005F0000-0x0000000000B86000-memory.dmp
memory/3376-5-0x0000000001240000-0x0000000001256000-memory.dmp
memory/4612-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4612-6-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4612-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4856-20-0x0000000077294000-0x0000000077295000-memory.dmp
memory/4856-35-0x0000000002830000-0x0000000002831000-memory.dmp
memory/4856-34-0x0000000000930000-0x0000000000996000-memory.dmp
memory/4856-21-0x0000000000930000-0x0000000000996000-memory.dmp
memory/4856-23-0x0000000002810000-0x0000000002811000-memory.dmp
memory/4856-16-0x0000000000010000-0x000000000006D000-memory.dmp
memory/4856-25-0x0000000000930000-0x0000000000996000-memory.dmp
memory/4856-24-0x0000000002840000-0x000000000284C000-memory.dmp
memory/4856-19-0x0000000000550000-0x000000000055D000-memory.dmp
memory/4856-18-0x0000000000930000-0x0000000000996000-memory.dmp