Analysis
- max time kernel
23s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
12/01/2024, 10:51
General
- Target ff5018aa96d03981958cc226c3b2aa40.exe
- Size 289KB
- Sample240112-mxtzesedhj
- SHA256 fd68ed7ff3adfd19b32efde83d13edb583c7d756d0780d079efac6d09ff8bbb4
Malware Config
Extracted
-
smokeloader
-
pub1
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
- 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 16 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\ff5018aa96d03981958cc226c3b2aa40.exe"C:\Users\Admin\AppData\Local\Temp\ff5018aa96d03981958cc226c3b2aa40.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ff5018aa96d03981958cc226c3b2aa40.exe"C:\Users\Admin\AppData\Local\Temp\ff5018aa96d03981958cc226c3b2aa40.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 3283⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5092 -ip 50921⤵
-
C:\Users\Admin\AppData\Local\Temp\9981.exeC:\Users\Admin\AppData\Local\Temp\9981.exe1⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe2⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 11403⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\9FAC.exeC:\Users\Admin\AppData\Local\Temp\9FAC.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 552 -p 4888 -ip 48881⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
9981.exe
memory/912-18-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/912-34-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/912-35-0x0000000002830000-0x0000000002831000-memory.dmp
memory/912-19-0x0000000002640000-0x000000000264D000-memory.dmp
memory/912-20-0x0000000077154000-0x0000000077155000-memory.dmp
memory/912-21-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/912-16-0x0000000000010000-0x000000000006D000-memory.dmp
memory/912-25-0x0000000002280000-0x00000000022E6000-memory.dmp
memory/912-24-0x0000000002840000-0x000000000284C000-memory.dmp
memory/912-23-0x00000000027C0000-0x00000000027C1000-memory.dmp
memory/1068-41-0x0000000000BA0000-0x0000000001136000-memory.dmp
memory/1068-48-0x0000000000BA0000-0x0000000001136000-memory.dmp
memory/3304-65-0x0000000072690000-0x0000000072DA7000-memory.dmp
memory/3304-60-0x0000000072690000-0x0000000072DA7000-memory.dmp
memory/3568-5-0x0000000002540000-0x0000000002556000-memory.dmp
memory/4004-1-0x0000000000490000-0x0000000000590000-memory.dmp
memory/4004-2-0x0000000002190000-0x0000000002199000-memory.dmp
memory/4888-64-0x0000000000640000-0x0000000000704000-memory.dmp
memory/4888-32-0x0000000000640000-0x0000000000704000-memory.dmp
memory/4888-30-0x0000000000640000-0x0000000000704000-memory.dmp
memory/4888-29-0x0000000000640000-0x0000000000704000-memory.dmp
memory/4888-28-0x0000000000770000-0x0000000000BA4000-memory.dmp
memory/4888-63-0x0000000000770000-0x0000000000BA3000-memory.dmp
memory/4888-61-0x0000000004590000-0x0000000004592000-memory.dmp
memory/4888-26-0x0000000000770000-0x0000000000BA4000-memory.dmp
memory/5092-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/5092-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/5092-8-0x0000000000400000-0x0000000000409000-memory.dmp