Analysis
- max time kernel
25s - max time network
147s - platform
windows7_x64 - resource
win7-20231129-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 NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious use of SetThreadContext 1 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.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Runs regedit.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 14 IoCs
- Suspicious use of WriteProcessMemory 11 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\explorer.exeC:\Windows\SysWOW64\explorer.exe1⤵
-
C:\Users\Admin\AppData\Local\Temp\im917u7c9k9gma_1.exe/suac2⤵
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x1BB70478" /TR "C:\PROGRA~3\JAVAUP~1\IM917U~1.EXE" /RL HIGHEST3⤵
- Creates scheduled task(s)
-
-
C:\Windows\SysWOW64\regedit.exe"C:\Windows\SysWOW64\regedit.exe"3⤵
- Runs regedit.exe
-
-
-
C:\Users\Admin\AppData\Local\Temp\78D8.exeC:\Users\Admin\AppData\Local\Temp\78D8.exe1⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Local\Temp\8EC9.exeC:\Users\Admin\AppData\Local\Temp\8EC9.exe1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1372-62-0x0000000002A40000-0x0000000002A46000-memory.dmp
memory/1372-54-0x0000000077BE1000-0x0000000077BE2000-memory.dmp
memory/1372-98-0x00000000029F0000-0x00000000029F1000-memory.dmp
memory/1372-7-0x0000000002A20000-0x0000000002A36000-memory.dmp
memory/1668-102-0x0000000000A40000-0x0000000000AA6000-memory.dmp
memory/1668-103-0x0000000000A40000-0x0000000000AA6000-memory.dmp
memory/1668-106-0x0000000000090000-0x000000000009B000-memory.dmp
memory/1668-105-0x0000000000A40000-0x0000000000AA5000-memory.dmp
memory/1912-79-0x0000000077BE1000-0x0000000077BE2000-memory.dmp
memory/2192-91-0x0000000000230000-0x0000000000236000-memory.dmp
memory/2192-109-0x0000000000530000-0x0000000000596000-memory.dmp
memory/2192-90-0x0000000000530000-0x0000000000596000-memory.dmp
memory/2192-95-0x0000000000530000-0x0000000000596000-memory.dmp
memory/2192-94-0x0000000000530000-0x0000000000596000-memory.dmp
memory/2192-93-0x0000000001F80000-0x0000000001F8C000-memory.dmp
memory/2192-89-0x0000000000530000-0x0000000000596000-memory.dmp
memory/2192-110-0x0000000000230000-0x0000000000236000-memory.dmp
memory/2192-108-0x0000000000010000-0x000000000006D000-memory.dmp
memory/2484-111-0x0000000000E10000-0x00000000013A6000-memory.dmp
memory/2484-64-0x0000000000E10000-0x00000000013A6000-memory.dmp
memory/2512-3-0x0000000000220000-0x0000000000229000-memory.dmp
memory/2512-1-0x0000000000520000-0x0000000000620000-memory.dmp
memory/2620-8-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2620-5-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2620-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2620-6-0x0000000000400000-0x0000000000409000-memory.dmp
memory/2652-25-0x00000000002A0000-0x00000000002AD000-memory.dmp
memory/2652-22-0x0000000000010000-0x000000000006D000-memory.dmp
memory/2652-24-0x0000000000290000-0x0000000000296000-memory.dmp
memory/2652-30-0x0000000001DF0000-0x0000000001DFC000-memory.dmp
memory/2652-47-0x0000000000290000-0x0000000000296000-memory.dmp
memory/2652-28-0x0000000077D80000-0x0000000077D81000-memory.dmp
memory/2652-29-0x0000000001D80000-0x0000000001D81000-memory.dmp
memory/2652-26-0x0000000001C40000-0x0000000001CA6000-memory.dmp
memory/2652-31-0x0000000001C40000-0x0000000001CA6000-memory.dmp
memory/2652-48-0x0000000001C40000-0x0000000001CA6000-memory.dmp
memory/2652-23-0x0000000001C40000-0x0000000001CA6000-memory.dmp
memory/2696-52-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-65-0x0000000000230000-0x00000000002F4000-memory.dmp
memory/2696-55-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-67-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-66-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-68-0x0000000002A40000-0x0000000002A46000-memory.dmp
memory/2696-70-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-69-0x0000000000190000-0x0000000000196000-memory.dmp
memory/2696-72-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-74-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-73-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-71-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-75-0x0000000000230000-0x00000000002F4000-memory.dmp
memory/2696-76-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-53-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-78-0x0000000000230000-0x00000000002F4000-memory.dmp
memory/2696-33-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-34-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-49-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-50-0x0000000000350000-0x0000000000351000-memory.dmp
memory/2696-51-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-36-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-96-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-37-0x0000000000190000-0x0000000000196000-memory.dmp
memory/2696-38-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-39-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-40-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-43-0x0000000077D70000-0x0000000077EF1000-memory.dmp
memory/2696-44-0x00000000003A0000-0x00000000003AC000-memory.dmp
memory/2696-45-0x0000000000230000-0x00000000002F4000-memory.dmp
memory/2696-41-0x0000000000230000-0x00000000002F4000-memory.dmp
memory/2696-35-0x0000000000230000-0x00000000002F4000-memory.dmp
memory/2696-113-0x0000000077D70000-0x0000000077EF1000-memory.dmp