Analysis
- max time kernel
152s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
03/12/2022, 10:59
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 351KB
- Sample221203-m3d56agh9x
- SHA256 8bb95292e5a2a9fbb169345646088cdad7426cb889595bcbea4ecea02984b2dc
- MD5 dc07c7e00c088bc014a4cd322f689ee6
- SHA1 cc4d783e368095144c809f05913dc606bdcba7f1
- SHA512 ea5a9bfa2fe86e1c1265d30377a9c528b21984c8c465e1510638fdd7d444cac51311afc81b7509e2aceb3544410cfb48d0d66cea88a4b41b0d8b01d1aa44efb9
- SSDEEP 3072:z98S+v9+DAr7C5JRme9JxlQFgnetThtwa6R1vYEk/g2ufKGnWNTC6NRMHnlX2evr:SS+vIDAPeZxGSeskvQnMW2Rqn0ePYo
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2080-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2472-135-0x0000000000030000-0x0000000000039000-memory.dmp family_smokeloader behavioral2/memory/2080-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2080-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5060-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5060-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 3956 fjdtdhv 5060 fjdtdhv - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2472 set thread context of 2080 2472 file.exe 82 PID 3956 set thread context of 5060 3956 fjdtdhv 85 - 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 fjdtdhv Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fjdtdhv Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fjdtdhv - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2080 file.exe 2080 file.exe 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found 2416 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2416 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2080 file.exe 5060 fjdtdhv - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2416 Process not Found Token: SeCreatePagefilePrivilege 2416 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2472 wrote to memory of 2080 2472 file.exe 82 PID 2472 wrote to memory of 2080 2472 file.exe 82 PID 2472 wrote to memory of 2080 2472 file.exe 82 PID 2472 wrote to memory of 2080 2472 file.exe 82 PID 2472 wrote to memory of 2080 2472 file.exe 82 PID 2472 wrote to memory of 2080 2472 file.exe 82 PID 3956 wrote to memory of 5060 3956 fjdtdhv 85 PID 3956 wrote to memory of 5060 3956 fjdtdhv 85 PID 3956 wrote to memory of 5060 3956 fjdtdhv 85 PID 3956 wrote to memory of 5060 3956 fjdtdhv 85 PID 3956 wrote to memory of 5060 3956 fjdtdhv 85 PID 3956 wrote to memory of 5060 3956 fjdtdhv 85
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:2472 -
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:2080
-
-
C:\Users\Admin\AppData\Roaming\fjdtdhvC:\Users\Admin\AppData\Roaming\fjdtdhv1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3956 -
C:\Users\Admin\AppData\Roaming\fjdtdhvC:\Users\Admin\AppData\Roaming\fjdtdhv2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:5060
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\fjdtdhv
- Size 351KB
- SHA256 8bb95292e5a2a9fbb169345646088cdad7426cb889595bcbea4ecea02984b2dc
- MD5 dc07c7e00c088bc014a4cd322f689ee6
- SHA1 cc4d783e368095144c809f05913dc606bdcba7f1
- SHA512 ea5a9bfa2fe86e1c1265d30377a9c528b21984c8c465e1510638fdd7d444cac51311afc81b7509e2aceb3544410cfb48d0d66cea88a4b41b0d8b01d1aa44efb9
- SSDEEP 3072:z98S+v9+DAr7C5JRme9JxlQFgnetThtwa6R1vYEk/g2ufKGnWNTC6NRMHnlX2evr:SS+vIDAPeZxGSeskvQnMW2Rqn0ePYo
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fjdtdhv
- Size 351KB
- SHA256 8bb95292e5a2a9fbb169345646088cdad7426cb889595bcbea4ecea02984b2dc
- MD5 dc07c7e00c088bc014a4cd322f689ee6
- SHA1 cc4d783e368095144c809f05913dc606bdcba7f1
- SHA512 ea5a9bfa2fe86e1c1265d30377a9c528b21984c8c465e1510638fdd7d444cac51311afc81b7509e2aceb3544410cfb48d0d66cea88a4b41b0d8b01d1aa44efb9
- SSDEEP 3072:z98S+v9+DAr7C5JRme9JxlQFgnetThtwa6R1vYEk/g2ufKGnWNTC6NRMHnlX2evr:SS+vIDAPeZxGSeskvQnMW2Rqn0ePYo
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fjdtdhv
- Size 351KB
- SHA256 8bb95292e5a2a9fbb169345646088cdad7426cb889595bcbea4ecea02984b2dc
- MD5 dc07c7e00c088bc014a4cd322f689ee6
- SHA1 cc4d783e368095144c809f05913dc606bdcba7f1
- SHA512 ea5a9bfa2fe86e1c1265d30377a9c528b21984c8c465e1510638fdd7d444cac51311afc81b7509e2aceb3544410cfb48d0d66cea88a4b41b0d8b01d1aa44efb9
- SSDEEP 3072:z98S+v9+DAr7C5JRme9JxlQFgnetThtwa6R1vYEk/g2ufKGnWNTC6NRMHnlX2evr:SS+vIDAPeZxGSeskvQnMW2Rqn0ePYo
- MD5 SHA1 SHA512 SSDEEP