Analysis
- max time kernel
160s - max time network
162s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
25/01/2023, 09:39
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 342KB
- Sample230125-lml1dsff25
- SHA256 e0ddfb5a3473969006cc485d8040b5321bc3769e7a5f5dfd7a8a9e5fe1227ac6
- MD5 87a0c1c312f80b7750ebee3ac4c0670c
- SHA1 a0738269e1b869c914767811145149b63db3ae61
- SHA512 47dab64a859dec1bfb640316daeede9fe26e50f703f73c4e7ceea2c67d4555279a338e7a6d6c41c5255d970c83f939981564a2b3d8fb3a6cc3b6ba10e031c625
- SSDEEP 6144:C9YLM8gPcKQiDKXQmSrweFS0bO+n1QybGDjq7VWRFBMolz90BB:wY4rhQKo2Q3O77VWR5lzKB
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4684-133-0x0000000002190000-0x0000000002199000-memory.dmp family_smokeloader behavioral2/memory/4848-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4848-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4848-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4184-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4184-146-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 836 stfbhiu 4184 stfbhiu - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4684 set thread context of 4848 4684 file.exe 80 PID 836 set thread context of 4184 836 stfbhiu 88 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI stfbhiu Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI stfbhiu Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI stfbhiu - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4848 file.exe 4848 file.exe 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2824 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4848 file.exe 4184 stfbhiu - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4684 wrote to memory of 4848 4684 file.exe 80 PID 4684 wrote to memory of 4848 4684 file.exe 80 PID 4684 wrote to memory of 4848 4684 file.exe 80 PID 4684 wrote to memory of 4848 4684 file.exe 80 PID 4684 wrote to memory of 4848 4684 file.exe 80 PID 4684 wrote to memory of 4848 4684 file.exe 80 PID 836 wrote to memory of 4184 836 stfbhiu 88 PID 836 wrote to memory of 4184 836 stfbhiu 88 PID 836 wrote to memory of 4184 836 stfbhiu 88 PID 836 wrote to memory of 4184 836 stfbhiu 88 PID 836 wrote to memory of 4184 836 stfbhiu 88 PID 836 wrote to memory of 4184 836 stfbhiu 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4684 -
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4848
-
-
C:\Users\Admin\AppData\Roaming\stfbhiuC:\Users\Admin\AppData\Roaming\stfbhiu1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:836 -
C:\Users\Admin\AppData\Roaming\stfbhiuC:\Users\Admin\AppData\Roaming\stfbhiu2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4184
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Roaming\stfbhiu
- Size 342KB
- SHA256 e0ddfb5a3473969006cc485d8040b5321bc3769e7a5f5dfd7a8a9e5fe1227ac6
- MD5 87a0c1c312f80b7750ebee3ac4c0670c
- SHA1 a0738269e1b869c914767811145149b63db3ae61
- SHA512 47dab64a859dec1bfb640316daeede9fe26e50f703f73c4e7ceea2c67d4555279a338e7a6d6c41c5255d970c83f939981564a2b3d8fb3a6cc3b6ba10e031c625
- SSDEEP 6144:C9YLM8gPcKQiDKXQmSrweFS0bO+n1QybGDjq7VWRFBMolz90BB:wY4rhQKo2Q3O77VWR5lzKB
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\stfbhiu
- Size 342KB
- SHA256 e0ddfb5a3473969006cc485d8040b5321bc3769e7a5f5dfd7a8a9e5fe1227ac6
- MD5 87a0c1c312f80b7750ebee3ac4c0670c
- SHA1 a0738269e1b869c914767811145149b63db3ae61
- SHA512 47dab64a859dec1bfb640316daeede9fe26e50f703f73c4e7ceea2c67d4555279a338e7a6d6c41c5255d970c83f939981564a2b3d8fb3a6cc3b6ba10e031c625
- SSDEEP 6144:C9YLM8gPcKQiDKXQmSrweFS0bO+n1QybGDjq7VWRFBMolz90BB:wY4rhQKo2Q3O77VWR5lzKB
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\stfbhiu
- Size 342KB
- SHA256 e0ddfb5a3473969006cc485d8040b5321bc3769e7a5f5dfd7a8a9e5fe1227ac6
- MD5 87a0c1c312f80b7750ebee3ac4c0670c
- SHA1 a0738269e1b869c914767811145149b63db3ae61
- SHA512 47dab64a859dec1bfb640316daeede9fe26e50f703f73c4e7ceea2c67d4555279a338e7a6d6c41c5255d970c83f939981564a2b3d8fb3a6cc3b6ba10e031c625
- SSDEEP 6144:C9YLM8gPcKQiDKXQmSrweFS0bO+n1QybGDjq7VWRFBMolz90BB:wY4rhQKo2Q3O77VWR5lzKB
- MD5 SHA1 SHA512 SSDEEP