Analysis
- max time kernel
23s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
12/01/2024, 10:51
General
- Target 866c6faeaa820ec56550404cd3d0f1b0.exe
- Size 289KB
- Sample240112-mxtzesfcc5
- SHA256 1a0885223c50263c153be36ffdcccd5c217e00a2e1f04893a836a37a6c0cd8a7
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\866c6faeaa820ec56550404cd3d0f1b0.exe"C:\Users\Admin\AppData\Local\Temp\866c6faeaa820ec56550404cd3d0f1b0.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\866c6faeaa820ec56550404cd3d0f1b0.exe"C:\Users\Admin\AppData\Local\Temp\866c6faeaa820ec56550404cd3d0f1b0.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1052 -s 3283⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1052 -ip 10521⤵
-
C:\Users\Admin\AppData\Local\Temp\9AD8.exeC:\Users\Admin\AppData\Local\Temp\9AD8.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⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4536 -s 11363⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\A5A7.exeC:\Users\Admin\AppData\Local\Temp\A5A7.exe1⤵
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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 432 -p 4536 -ip 45361⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1052-9-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1052-4-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1052-3-0x0000000000400000-0x0000000000409000-memory.dmp
memory/1052-5-0x0000000000400000-0x0000000000409000-memory.dmp
memory/3016-23-0x00000000775C4000-0x00000000775C5000-memory.dmp
memory/3016-19-0x0000000000910000-0x0000000000976000-memory.dmp
memory/3016-17-0x0000000000010000-0x000000000006D000-memory.dmp
memory/3016-20-0x0000000000990000-0x000000000099D000-memory.dmp
memory/3016-26-0x0000000000910000-0x0000000000976000-memory.dmp
memory/3016-25-0x0000000002840000-0x000000000284C000-memory.dmp
memory/3016-24-0x0000000002810000-0x0000000002811000-memory.dmp
memory/3016-35-0x0000000000910000-0x0000000000976000-memory.dmp
memory/3016-21-0x0000000000910000-0x0000000000976000-memory.dmp
memory/3220-1-0x0000000000800000-0x0000000000900000-memory.dmp
memory/3220-2-0x00000000007F0000-0x00000000007F9000-memory.dmp
memory/3524-6-0x0000000002ED0000-0x0000000002EE6000-memory.dmp
memory/3980-49-0x0000000001000000-0x0000000001596000-memory.dmp
memory/3980-42-0x0000000001000000-0x0000000001596000-memory.dmp
memory/4536-27-0x0000000000820000-0x0000000000C54000-memory.dmp
memory/4536-33-0x0000000001000000-0x00000000010C4000-memory.dmp
memory/4536-36-0x0000000002C30000-0x0000000002C31000-memory.dmp
memory/4536-31-0x0000000001000000-0x00000000010C4000-memory.dmp
memory/4536-29-0x0000000000820000-0x0000000000C54000-memory.dmp
memory/4536-64-0x0000000001000000-0x00000000010C4000-memory.dmp
memory/4536-63-0x0000000000820000-0x0000000000C53000-memory.dmp
memory/4536-61-0x00000000047E0000-0x00000000047E2000-memory.dmp