Analysis
- max time kernel
30s - max time network
49s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
11/01/2024, 15:20
General
- Target d71a7808aa7379bc12ec11726af9c97fcf7186ac10f987e303320b6cb41904c7.exe
- Size 312KB
- Sample240111-sqs2faacdn
- SHA256 d71a7808aa7379bc12ec11726af9c97fcf7186ac10f987e303320b6cb41904c7
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
- 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 3 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\d71a7808aa7379bc12ec11726af9c97fcf7186ac10f987e303320b6cb41904c7.exe"C:\Users\Admin\AppData\Local\Temp\d71a7808aa7379bc12ec11726af9c97fcf7186ac10f987e303320b6cb41904c7.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 228 -s 3682⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 228 -ip 2281⤵
-
C:\Users\Admin\AppData\Local\Temp\B4AA.exeC:\Users\Admin\AppData\Local\Temp\B4AA.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 1264 -s 11283⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\B93F.exeC:\Users\Admin\AppData\Local\Temp\B93F.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 532 -p 1264 -ip 12641⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/228-2-0x0000000000950000-0x0000000000959000-memory.dmp
memory/228-8-0x0000000000400000-0x000000000086F000-memory.dmp
memory/228-1-0x0000000000970000-0x0000000000A70000-memory.dmp
memory/228-4-0x0000000000400000-0x000000000086F000-memory.dmp
memory/228-3-0x0000000000400000-0x000000000086F000-memory.dmp
memory/1264-29-0x0000000000C10000-0x0000000000CD4000-memory.dmp
memory/1264-60-0x0000000000C10000-0x0000000000CD4000-memory.dmp
memory/1264-64-0x0000000000C10000-0x0000000000CD4000-memory.dmp
memory/1264-63-0x00000000004D0000-0x0000000000903000-memory.dmp
memory/1264-25-0x00000000004D0000-0x0000000000904000-memory.dmp
memory/1264-28-0x0000000000C10000-0x0000000000CD4000-memory.dmp
memory/1264-31-0x0000000000C10000-0x0000000000CD4000-memory.dmp
memory/1264-61-0x0000000002F30000-0x0000000002F32000-memory.dmp
memory/1264-27-0x00000000004D0000-0x0000000000904000-memory.dmp
memory/1800-47-0x0000000000C90000-0x0000000001226000-memory.dmp
memory/1800-38-0x0000000000C90000-0x0000000001226000-memory.dmp
memory/1928-21-0x0000000077164000-0x0000000077165000-memory.dmp
memory/1928-18-0x0000000002640000-0x000000000264D000-memory.dmp
memory/1928-19-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/1928-40-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/1928-15-0x0000000000010000-0x000000000006D000-memory.dmp
memory/1928-39-0x0000000002830000-0x0000000002831000-memory.dmp
memory/1928-17-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/1928-22-0x0000000002810000-0x0000000002811000-memory.dmp
memory/1928-23-0x0000000002840000-0x000000000284C000-memory.dmp
memory/1928-24-0x0000000002290000-0x00000000022F6000-memory.dmp
memory/3392-5-0x0000000002820000-0x0000000002836000-memory.dmp
memory/5008-59-0x00000000726A0000-0x0000000072DB7000-memory.dmp
memory/5008-65-0x00000000726A0000-0x0000000072DB7000-memory.dmp