Analysis
- max time kernel
158s - max time network
164s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
12/01/2024, 10:48
General
- Target ec88c05e8d2e697b023514bade68e311.exe
- Size 256KB
- Sample240112-mv5cdaeddl
- SHA256 c7cc77635eee4026d68f94cecbd1b92793de6ff0d8506c74b9c3a4bfe0c19541
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 1 IoCs
- NSIS installer 6 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 30 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\ec88c05e8d2e697b023514bade68e311.exe"C:\Users\Admin\AppData\Local\Temp\ec88c05e8d2e697b023514bade68e311.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\2D64.exeC:\Users\Admin\AppData\Local\Temp\2D64.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 3752 -s 11443⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\3B5F.exeC:\Users\Admin\AppData\Local\Temp\3B5F.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 432 -p 3752 -ip 37521⤵
-
C:\Users\Admin\AppData\Roaming\futgfuvC:\Users\Admin\AppData\Roaming\futgfuv1⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
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
2D64.exe
3B5F.exe
3B5F.exe
WindowsUpdater.exe
WindowsUpdater.exe
lib.dll
System.dll
futgfuv
memory/2316-67-0x0000000000730000-0x0000000000830000-memory.dmp
memory/2316-68-0x0000000000400000-0x0000000000446000-memory.dmp
memory/2316-72-0x0000000000400000-0x0000000000446000-memory.dmp
memory/2648-17-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/2648-23-0x0000000002830000-0x000000000283C000-memory.dmp
memory/2648-22-0x0000000002800000-0x0000000002801000-memory.dmp
memory/2648-24-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/2648-18-0x0000000002640000-0x000000000264D000-memory.dmp
memory/2648-15-0x0000000000010000-0x000000000006D000-memory.dmp
memory/2648-20-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/2648-33-0x0000000002820000-0x0000000002821000-memory.dmp
memory/2648-35-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/2648-19-0x0000000076F04000-0x0000000076F05000-memory.dmp
memory/3580-4-0x0000000002270000-0x0000000002286000-memory.dmp
memory/3580-69-0x0000000002310000-0x0000000002326000-memory.dmp
memory/3740-47-0x0000000000310000-0x00000000008A6000-memory.dmp
memory/3740-40-0x0000000000310000-0x00000000008A6000-memory.dmp
memory/3752-63-0x0000000001290000-0x0000000001354000-memory.dmp
memory/3752-62-0x00000000009C0000-0x0000000000DF3000-memory.dmp
memory/3752-25-0x00000000009C0000-0x0000000000DF4000-memory.dmp
memory/3752-28-0x0000000001290000-0x0000000001354000-memory.dmp
memory/3752-27-0x00000000009C0000-0x0000000000DF4000-memory.dmp
memory/3752-59-0x0000000001290000-0x0000000001354000-memory.dmp
memory/3752-60-0x0000000003170000-0x0000000003172000-memory.dmp
memory/3752-29-0x0000000001290000-0x0000000001354000-memory.dmp
memory/3752-31-0x0000000001290000-0x0000000001354000-memory.dmp
memory/4456-1-0x0000000000510000-0x0000000000610000-memory.dmp
memory/4456-8-0x00000000004F0000-0x00000000004F9000-memory.dmp
memory/4456-5-0x0000000000400000-0x0000000000446000-memory.dmp
memory/4456-3-0x0000000000400000-0x0000000000446000-memory.dmp
memory/4456-2-0x00000000004F0000-0x00000000004F9000-memory.dmp