Analysis
- max time kernel
23s - max time network
112s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
12/01/2024, 10:51
General
- Target a945da935725b3335b8d532f59c60976.exe
- Size 290KB
- Sample240112-mxtzesfcc9
- SHA256 dccf17e32afc8abc1e8179411260ffe7971826da058cf4f57162c17560c16920
Malware Config
Extracted
-
smokeloader
-
up3
Extracted
-
smokeloader
-
2020
-
http://host-file-host6.com/
-
http://host-host-file8.com/
Signatures
- SmokeLoader
Modular backdoor trojan in use since 2014.
- Deletes itself 1 IoCs
- Executes dropped EXE 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Program crash 2 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 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 9 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\a945da935725b3335b8d532f59c60976.exe"C:\Users\Admin\AppData\Local\Temp\a945da935725b3335b8d532f59c60976.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\a945da935725b3335b8d532f59c60976.exe"C:\Users\Admin\AppData\Local\Temp\a945da935725b3335b8d532f59c60976.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1300 -s 3283⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1300 -ip 13001⤵
-
C:\Users\Admin\AppData\Local\Temp\A97E.exeC:\Users\Admin\AppData\Local\Temp\A97E.exe1⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Checks processor information in registry
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe2⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4372 -s 11323⤵
- Program crash
-
-
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C:\Users\Admin\AppData\Local\Temp\AEB0.exeC:\Users\Admin\AppData\Local\Temp\AEB0.exe1⤵
-
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"2⤵
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4372 -ip 43721⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1300-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1300-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1300-8-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3444-2-0x0000000000530000-0x0000000000539000-memory.dmp
memory/3444-1-0x0000000000540000-0x0000000000640000-memory.dmp
memory/3512-5-0x0000000003150000-0x0000000003166000-memory.dmp
memory/4372-23-0x0000000002CF0000-0x0000000002CFC000-memory.dmp
memory/4372-18-0x0000000000C30000-0x0000000000CF4000-memory.dmp
memory/4372-19-0x00000000010C0000-0x00000000010CD000-memory.dmp
memory/4372-24-0x0000000000C30000-0x0000000000CF4000-memory.dmp
memory/4372-16-0x00000000000F0000-0x0000000000524000-memory.dmp
memory/4372-22-0x00000000011D0000-0x00000000011D1000-memory.dmp
memory/4372-21-0x00000000777D4000-0x00000000777D5000-memory.dmp
memory/4372-17-0x00000000000F0000-0x0000000000524000-memory.dmp
memory/4372-25-0x00000000011F0000-0x00000000011F1000-memory.dmp
memory/4372-52-0x0000000004540000-0x0000000004542000-memory.dmp
memory/4372-54-0x00000000000F0000-0x0000000000523000-memory.dmp
memory/4372-55-0x0000000000C30000-0x0000000000CF4000-memory.dmp
memory/4376-39-0x00000000004A0000-0x0000000000A36000-memory.dmp
memory/4376-32-0x00000000004A0000-0x0000000000A36000-memory.dmp
memory/4736-51-0x0000000072D10000-0x0000000073427000-memory.dmp
memory/4736-56-0x0000000072D10000-0x0000000073427000-memory.dmp