Analysis
- max time kernel
26s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
05/01/2024, 15:37
General
- Target 9ba00646bb66594c56c1af60ab38060c55f272a4e1e848c6941f5d6c53a02ead.exe
- Size 203KB
- Sample240105-s2vdmsehcm
- SHA256 9ba00646bb66594c56c1af60ab38060c55f272a4e1e848c6941f5d6c53a02ead
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 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 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\9ba00646bb66594c56c1af60ab38060c55f272a4e1e848c6941f5d6c53a02ead.exe"C:\Users\Admin\AppData\Local\Temp\9ba00646bb66594c56c1af60ab38060c55f272a4e1e848c6941f5d6c53a02ead.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\9ba00646bb66594c56c1af60ab38060c55f272a4e1e848c6941f5d6c53a02ead.exe"C:\Users\Admin\AppData\Local\Temp\9ba00646bb66594c56c1af60ab38060c55f272a4e1e848c6941f5d6c53a02ead.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4960 -s 3283⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4960 -ip 49601⤵
-
C:\Users\Admin\AppData\Local\Temp\A558.exeC:\Users\Admin\AppData\Local\Temp\A558.exe1⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 11443⤵
- Program crash
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-
-
C:\Users\Admin\AppData\Local\Temp\B0B3.exeC:\Users\Admin\AppData\Local\Temp\B0B3.exe1⤵
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C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"2⤵
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-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 5060 -ip 50601⤵
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C:\Users\Admin\AppData\Roaming\buasucdC:\Users\Admin\AppData\Roaming\buasucd1⤵
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C:\Users\Admin\AppData\Roaming\buasucdC:\Users\Admin\AppData\Roaming\buasucd2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4980 -s 3283⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4980 -ip 49801⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
buasucd
memory/400-70-0x0000000000AAB000-0x0000000000AC0000-memory.dmp
memory/2512-22-0x00000000022F0000-0x0000000002356000-memory.dmp
memory/2512-35-0x00000000022F0000-0x0000000002356000-memory.dmp
memory/2512-17-0x0000000000010000-0x000000000006D000-memory.dmp
memory/2512-20-0x0000000000920000-0x000000000092D000-memory.dmp
memory/2512-21-0x00000000776F4000-0x00000000776F5000-memory.dmp
memory/2512-19-0x00000000022F0000-0x0000000002356000-memory.dmp
memory/2512-26-0x00000000022F0000-0x0000000002356000-memory.dmp
memory/2512-25-0x0000000002840000-0x000000000284C000-memory.dmp
memory/2512-24-0x00000000027C0000-0x00000000027C1000-memory.dmp
memory/3424-72-0x0000000002C40000-0x0000000002C56000-memory.dmp
memory/3424-6-0x0000000002C00000-0x0000000002C16000-memory.dmp
memory/4056-1-0x0000000000AC0000-0x0000000000BC0000-memory.dmp
memory/4056-2-0x0000000002460000-0x0000000002469000-memory.dmp
memory/4892-42-0x0000000000E70000-0x0000000001406000-memory.dmp
memory/4892-49-0x0000000000E70000-0x0000000001406000-memory.dmp
memory/4960-9-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4960-5-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4960-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4960-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4980-75-0x0000000000400000-0x0000000000409000-memory.dmp
memory/4980-71-0x0000000000400000-0x0000000000409000-memory.dmp
memory/5060-27-0x0000000000EA0000-0x00000000012D4000-memory.dmp
memory/5060-63-0x0000000000EA0000-0x00000000012D3000-memory.dmp
memory/5060-64-0x00000000012E0000-0x00000000013A4000-memory.dmp
memory/5060-61-0x0000000004DB0000-0x0000000004DB2000-memory.dmp
memory/5060-36-0x0000000001A60000-0x0000000001A61000-memory.dmp
memory/5060-33-0x00000000012E0000-0x00000000013A4000-memory.dmp
memory/5060-31-0x00000000012E0000-0x00000000013A4000-memory.dmp
memory/5060-29-0x0000000000EA0000-0x00000000012D4000-memory.dmp