Analysis
- max time kernel
150s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
12/01/2024, 15:39
General
- Target 7df8edaa8a8b2412a77e89ad13496b51.exe
- Size 351KB
- Sample240112-s3pjsabdg2
- SHA256 4e58387e1431f77f2fb4f103f82f7e5703daa02e039e352f05384c2ea300d103
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 8 IoCs
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Looks for VMWare services registry key. 1 TTPs 1 IoCs
- Sets file execution options in registry 2 TTPs 6 IoCs
- Checks BIOS information in registry 2 TTPs 2 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 5 IoCs
- Loads dropped DLL 2 IoCs
- Adds Run key to start application 2 TTPs 5 IoCs
- Checks whether UAC is enabled 1 TTPs 3 IoCs
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of NtSetInformationThreadHideFromDebugger 20 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 2 IoCs
- NSIS installer 8 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 8 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 4 IoCs
- Modifies Internet Explorer Protected Mode 1 TTPs 8 IoCs
- Modifies Internet Explorer Protected Mode Banner 1 TTPs 2 IoCs
- Modifies Internet Explorer settings 1 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 7 IoCs
- Suspicious use of AdjustPrivilegeToken 60 IoCs
- Suspicious use of UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 20 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\7df8edaa8a8b2412a77e89ad13496b51.exe"C:\Users\Admin\AppData\Local\Temp\7df8edaa8a8b2412a77e89ad13496b51.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Users\Admin\AppData\Local\Temp\4ED.exeC:\Users\Admin\AppData\Local\Temp\4ED.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 behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3216 -s 11443⤵
- Program crash
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-
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C:\Users\Admin\AppData\Roaming\uavjrwaC:\Users\Admin\AppData\Roaming\uavjrwa1⤵
- Looks for VMWare services registry key.
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\Java Updater\myy9w755.exe/prstb2⤵
- 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.exe3⤵
- 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 1112 -s 10844⤵
- Program crash
-
-
-
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C:\Users\Admin\AppData\Local\Temp\1067.exeC:\Users\Admin\AppData\Local\Temp\1067.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
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3216 -ip 32161⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1112 -ip 11121⤵
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
myy9w755.exe
1067.exe
1067.exe
4ED.exe
WindowsUpdater.exe
WindowsUpdater.exe
WindowsUpdater.exe
lib.dll
System.dll
uavjrwa
memory/1112-89-0x00000000008B0000-0x0000000000974000-memory.dmp
memory/1112-104-0x00000000008B0000-0x0000000000974000-memory.dmp
memory/1112-103-0x0000000000170000-0x00000000005A3000-memory.dmp
memory/1112-92-0x00000000008B0000-0x0000000000974000-memory.dmp
memory/1112-88-0x00000000008B0000-0x0000000000974000-memory.dmp
memory/1112-87-0x0000000000170000-0x00000000005A4000-memory.dmp
memory/1112-85-0x0000000000170000-0x00000000005A4000-memory.dmp
memory/1844-84-0x0000000002190000-0x00000000021F6000-memory.dmp
memory/1844-80-0x0000000002190000-0x00000000021F6000-memory.dmp
memory/1844-90-0x0000000002190000-0x00000000021F6000-memory.dmp
memory/1844-81-0x0000000002190000-0x00000000021F6000-memory.dmp
memory/1844-94-0x0000000000010000-0x000000000006D000-memory.dmp
memory/3140-97-0x0000000002CB0000-0x0000000002CC6000-memory.dmp
memory/3140-4-0x0000000002DC0000-0x0000000002DD6000-memory.dmp
memory/3216-54-0x0000000000170000-0x00000000005A4000-memory.dmp
memory/3216-52-0x0000000000170000-0x00000000005A4000-memory.dmp
memory/3216-68-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/3216-55-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/3216-58-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/3216-56-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/3216-75-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/3216-74-0x0000000000170000-0x00000000005A3000-memory.dmp
memory/3216-72-0x0000000004A80000-0x0000000004A82000-memory.dmp
memory/3216-71-0x0000000001200000-0x00000000012C4000-memory.dmp
memory/3528-24-0x0000000000470000-0x0000000000A06000-memory.dmp
memory/3528-40-0x0000000000470000-0x0000000000A06000-memory.dmp
memory/4344-32-0x0000000002830000-0x000000000283C000-memory.dmp
memory/4344-59-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/4344-31-0x0000000002800000-0x0000000002801000-memory.dmp
memory/4344-33-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/4344-30-0x0000000077354000-0x0000000077355000-memory.dmp
memory/4344-60-0x0000000002820000-0x0000000002821000-memory.dmp
memory/4344-15-0x0000000000010000-0x000000000006D000-memory.dmp
memory/4344-26-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/4344-27-0x0000000002640000-0x000000000264D000-memory.dmp
memory/4344-28-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/4380-1-0x0000000000B10000-0x0000000000C10000-memory.dmp
memory/4380-8-0x0000000000AF0000-0x0000000000AF9000-memory.dmp
memory/4380-5-0x0000000000400000-0x0000000000879000-memory.dmp
memory/4380-3-0x0000000000400000-0x0000000000879000-memory.dmp
memory/4380-2-0x0000000000AF0000-0x0000000000AF9000-memory.dmp
memory/4512-62-0x0000000002580000-0x0000000002644000-memory.dmp
memory/4512-82-0x0000000002580000-0x0000000002644000-memory.dmp
memory/4512-77-0x0000000000400000-0x0000000000879000-memory.dmp
memory/4512-93-0x0000000000B40000-0x0000000000C40000-memory.dmp
memory/4512-76-0x0000000000B40000-0x0000000000C40000-memory.dmp
memory/4512-70-0x0000000002520000-0x0000000002521000-memory.dmp
memory/4512-64-0x0000000077323000-0x0000000077324000-memory.dmp
memory/4512-65-0x0000000002580000-0x0000000002644000-memory.dmp
memory/4512-69-0x0000000002580000-0x0000000002644000-memory.dmp
memory/4512-101-0x0000000000400000-0x0000000000879000-memory.dmp
memory/4512-98-0x0000000002580000-0x0000000002644000-memory.dmp
memory/4512-63-0x0000000002580000-0x0000000002644000-memory.dmp
memory/4512-66-0x0000000002580000-0x0000000002644000-memory.dmp