Analysis
- max time kernel
152s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
12/01/2024, 23:06
General
- Target 2739b41aab3ff3cc0727ada7ad04162f0379ef151c7d4b4296e963a2a74891c5.exe
- Size 300KB
- Sample240112-23d8gsffdm
- SHA256 2739b41aab3ff3cc0727ada7ad04162f0379ef151c7d4b4296e963a2a74891c5
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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- NSIS installer 3 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 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\2739b41aab3ff3cc0727ada7ad04162f0379ef151c7d4b4296e963a2a74891c5.exe"C:\Users\Admin\AppData\Local\Temp\2739b41aab3ff3cc0727ada7ad04162f0379ef151c7d4b4296e963a2a74891c5.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\4C46.exeC:\Users\Admin\AppData\Local\Temp\4C46.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 408 -s 10963⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\5763.exeC:\Users\Admin\AppData\Local\Temp\5763.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 408 -p 408 -ip 4081⤵
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
4C46.exe
5763.exe
WindowsUpdater.exe
lib.dll
System.dll
memory/408-40-0x0000000000800000-0x00000000008C4000-memory.dmp
memory/408-32-0x0000000001000000-0x0000000001434000-memory.dmp
memory/408-39-0x0000000000BD0000-0x0000000000BDD000-memory.dmp
memory/408-38-0x0000000000800000-0x00000000008C4000-memory.dmp
memory/408-66-0x0000000000800000-0x00000000008C4000-memory.dmp
memory/408-63-0x0000000004490000-0x0000000004492000-memory.dmp
memory/408-62-0x0000000001000000-0x0000000001433000-memory.dmp
memory/408-34-0x0000000001000000-0x0000000001434000-memory.dmp
memory/408-43-0x0000000000800000-0x00000000008C4000-memory.dmp
memory/1748-2-0x00000000021A0000-0x00000000021A9000-memory.dmp
memory/1748-3-0x0000000000400000-0x0000000000451000-memory.dmp
memory/1748-9-0x00000000021A0000-0x00000000021A9000-memory.dmp
memory/1748-4-0x0000000000400000-0x0000000000451000-memory.dmp
memory/1748-6-0x0000000000400000-0x0000000000451000-memory.dmp
memory/1748-1-0x0000000000600000-0x0000000000700000-memory.dmp
memory/2260-61-0x0000000072D90000-0x00000000734A7000-memory.dmp
memory/2260-67-0x0000000072D90000-0x00000000734A7000-memory.dmp
memory/2500-30-0x0000000000F40000-0x00000000014D6000-memory.dmp
memory/2500-49-0x0000000000F40000-0x00000000014D6000-memory.dmp
memory/3496-5-0x0000000002F50000-0x0000000002F66000-memory.dmp
memory/5008-23-0x0000000002800000-0x0000000002801000-memory.dmp
memory/5008-36-0x0000000002820000-0x0000000002821000-memory.dmp
memory/5008-37-0x00000000022D0000-0x0000000002336000-memory.dmp
memory/5008-25-0x00000000022D0000-0x0000000002336000-memory.dmp
memory/5008-24-0x0000000002830000-0x000000000283C000-memory.dmp
memory/5008-21-0x00000000022D0000-0x0000000002336000-memory.dmp
memory/5008-20-0x00000000775A4000-0x00000000775A5000-memory.dmp
memory/5008-19-0x0000000000620000-0x000000000062D000-memory.dmp
memory/5008-18-0x00000000022D0000-0x0000000002336000-memory.dmp
memory/5008-16-0x0000000000010000-0x000000000006D000-memory.dmp