Analysis
- max time kernel
150s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
15/12/2022, 10:59
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 327KB
- Sample221215-m3dvdscb92
- SHA256 4a5eb7a6b54b84e0eebbf2946b86e8e83ab45122ce4fa57eb3e6e9fb565d3e67
- MD5 b815d9f36c936088848e4da290aaf491
- SHA1 8715a324dafb482f5540bb6dc124336524db6f45
- SHA512 2aa4256513d9107c9fab7f31aca91f9a5ab71d43a1f9ff981e38f63f48bdfc68de526e83ec22b9f5f9c10ba7f6cdac7e77dd2a23700a73a9c52ba38fff64b833
- SSDEEP 6144:jYjsLrNi4BoAR9bp1D45F3KkfPSbR0isvzpQ6ijLxQFiaI:pfNVBTRFzP6ExqzpQ6ijqF
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4736-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1208-135-0x00000000005A0000-0x00000000005A9000-memory.dmp family_smokeloader behavioral2/memory/4736-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4736-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4984-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4984-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4460 daatwsb 4984 daatwsb - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1208 set thread context of 4736 1208 file.exe 79 PID 4460 set thread context of 4984 4460 daatwsb 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 daatwsb Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI daatwsb Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI daatwsb 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 - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4736 file.exe 4736 file.exe 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found 2640 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2640 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4736 file.exe 4984 daatwsb - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2640 Process not Found Token: SeCreatePagefilePrivilege 2640 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1208 wrote to memory of 4736 1208 file.exe 79 PID 1208 wrote to memory of 4736 1208 file.exe 79 PID 1208 wrote to memory of 4736 1208 file.exe 79 PID 1208 wrote to memory of 4736 1208 file.exe 79 PID 1208 wrote to memory of 4736 1208 file.exe 79 PID 1208 wrote to memory of 4736 1208 file.exe 79 PID 4460 wrote to memory of 4984 4460 daatwsb 88 PID 4460 wrote to memory of 4984 4460 daatwsb 88 PID 4460 wrote to memory of 4984 4460 daatwsb 88 PID 4460 wrote to memory of 4984 4460 daatwsb 88 PID 4460 wrote to memory of 4984 4460 daatwsb 88 PID 4460 wrote to memory of 4984 4460 daatwsb 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:1208 -
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:4736
-
-
C:\Users\Admin\AppData\Roaming\daatwsbC:\Users\Admin\AppData\Roaming\daatwsb1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4460 -
C:\Users\Admin\AppData\Roaming\daatwsbC:\Users\Admin\AppData\Roaming\daatwsb2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4984
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\daatwsb
- Size 327KB
- SHA256 4a5eb7a6b54b84e0eebbf2946b86e8e83ab45122ce4fa57eb3e6e9fb565d3e67
- MD5 b815d9f36c936088848e4da290aaf491
- SHA1 8715a324dafb482f5540bb6dc124336524db6f45
- SHA512 2aa4256513d9107c9fab7f31aca91f9a5ab71d43a1f9ff981e38f63f48bdfc68de526e83ec22b9f5f9c10ba7f6cdac7e77dd2a23700a73a9c52ba38fff64b833
- SSDEEP 6144:jYjsLrNi4BoAR9bp1D45F3KkfPSbR0isvzpQ6ijLxQFiaI:pfNVBTRFzP6ExqzpQ6ijqF
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\daatwsb
- Size 327KB
- SHA256 4a5eb7a6b54b84e0eebbf2946b86e8e83ab45122ce4fa57eb3e6e9fb565d3e67
- MD5 b815d9f36c936088848e4da290aaf491
- SHA1 8715a324dafb482f5540bb6dc124336524db6f45
- SHA512 2aa4256513d9107c9fab7f31aca91f9a5ab71d43a1f9ff981e38f63f48bdfc68de526e83ec22b9f5f9c10ba7f6cdac7e77dd2a23700a73a9c52ba38fff64b833
- SSDEEP 6144:jYjsLrNi4BoAR9bp1D45F3KkfPSbR0isvzpQ6ijLxQFiaI:pfNVBTRFzP6ExqzpQ6ijqF
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\daatwsb
- Size 327KB
- SHA256 4a5eb7a6b54b84e0eebbf2946b86e8e83ab45122ce4fa57eb3e6e9fb565d3e67
- MD5 b815d9f36c936088848e4da290aaf491
- SHA1 8715a324dafb482f5540bb6dc124336524db6f45
- SHA512 2aa4256513d9107c9fab7f31aca91f9a5ab71d43a1f9ff981e38f63f48bdfc68de526e83ec22b9f5f9c10ba7f6cdac7e77dd2a23700a73a9c52ba38fff64b833
- SSDEEP 6144:jYjsLrNi4BoAR9bp1D45F3KkfPSbR0isvzpQ6ijLxQFiaI:pfNVBTRFzP6ExqzpQ6ijqF
- MD5 SHA1 SHA512 SSDEEP