Analysis
- max time kernel
148s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
09/01/2024, 16:18
General
- Target e9938f2d916c0fddd8230ac0241c4c42cf55ed5eb58e4b4ab6fb161000817559.exe
- Size 312KB
- Sample240109-tr9agsfca7
- SHA256 e9938f2d916c0fddd8230ac0241c4c42cf55ed5eb58e4b4ab6fb161000817559
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 4 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 3 IoCs
- Checks SCSI registry key(s) 3 TTPs 6 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 34 IoCs
- Suspicious use of UnmapMainImage 1 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\e9938f2d916c0fddd8230ac0241c4c42cf55ed5eb58e4b4ab6fb161000817559.exe"C:\Users\Admin\AppData\Local\Temp\e9938f2d916c0fddd8230ac0241c4c42cf55ed5eb58e4b4ab6fb161000817559.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 116 -s 3682⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 116 -ip 1161⤵
-
C:\Users\Admin\AppData\Local\Temp\C3BD.exeC:\Users\Admin\AppData\Local\Temp\C3BD.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 1816 -s 11123⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\CA56.exeC:\Users\Admin\AppData\Local\Temp\CA56.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 412 -p 1816 -ip 18161⤵
-
C:\Users\Admin\AppData\Roaming\uudvirbC:\Users\Admin\AppData\Roaming\uudvirb1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1720 -s 3682⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 384 -p 1720 -ip 17201⤵
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
C3BD.exe
uudvirb
memory/116-1-0x0000000000B80000-0x0000000000C80000-memory.dmp
memory/116-3-0x0000000000400000-0x000000000086F000-memory.dmp
memory/116-2-0x00000000009C0000-0x00000000009C9000-memory.dmp
memory/116-4-0x0000000000400000-0x000000000086F000-memory.dmp
memory/116-8-0x0000000000400000-0x000000000086F000-memory.dmp
memory/116-9-0x00000000009C0000-0x00000000009C9000-memory.dmp
memory/1720-73-0x0000000000400000-0x000000000086F000-memory.dmp
memory/1720-67-0x0000000000A50000-0x0000000000B50000-memory.dmp
memory/1720-68-0x0000000000400000-0x000000000086F000-memory.dmp
memory/1816-26-0x0000000000E00000-0x0000000001234000-memory.dmp
memory/1816-32-0x0000000001240000-0x0000000001304000-memory.dmp
memory/1816-62-0x0000000000E00000-0x0000000001233000-memory.dmp
memory/1816-63-0x0000000001240000-0x0000000001304000-memory.dmp
memory/1816-60-0x00000000037A0000-0x00000000037A2000-memory.dmp
memory/1816-33-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1816-28-0x0000000000E00000-0x0000000001234000-memory.dmp
memory/1816-30-0x0000000001240000-0x0000000001304000-memory.dmp
memory/2116-41-0x0000000000310000-0x00000000008A6000-memory.dmp
memory/2116-48-0x0000000000310000-0x00000000008A6000-memory.dmp
memory/2836-35-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/2836-24-0x0000000002840000-0x000000000284C000-memory.dmp
memory/2836-23-0x0000000002800000-0x0000000002801000-memory.dmp
memory/2836-18-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/2836-20-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/2836-21-0x0000000077164000-0x0000000077165000-memory.dmp
memory/2836-25-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/2836-19-0x0000000002640000-0x000000000264D000-memory.dmp
memory/2836-16-0x0000000000010000-0x000000000006D000-memory.dmp
memory/3392-70-0x00000000026A0000-0x00000000026B6000-memory.dmp
memory/3392-5-0x0000000002830000-0x0000000002846000-memory.dmp