Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
09/09/2022, 02:13
Static task
static1
Behavioral task
behavioral1
Sample
99cc678edebe5f5a8201167ee9d46e64.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
99cc678edebe5f5a8201167ee9d46e64.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 99cc678edebe5f5a8201167ee9d46e64.exe
- Size 206KB
- Sample220909-cnes2addbl
- SHA256 61b798b00b569454bf35692eaa31eecedc70c057502d6bd7b5b56f9076bf794f
- MD5 99cc678edebe5f5a8201167ee9d46e64
- SHA1 3583e81448bfd5769c3cab1bfd781a1d2b5af673
- SHA512 1f6f868b8f90ee282d96482c62f48cc4dc2c2328a2a9a0478c02a34cdd5eb47f6c70da1319324d588a2cf205dc17d241f25062cbc728661ac7f7bc5b6f4203be
- SSDEEP 3072:7ftAdJ8HVrAeluS4w9JcTPlKHJYo2FKj1cbZLab7+Ja09n1kp:ZueU0uS4wsKm9FK2c30m
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4440-133-0x0000000002C40000-0x0000000002C49000-memory.dmp family_smokeloader behavioral2/memory/4680-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4680-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4680-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4440 set thread context of 4680 4440 99cc678edebe5f5a8201167ee9d46e64.exe 83 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 99cc678edebe5f5a8201167ee9d46e64.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 99cc678edebe5f5a8201167ee9d46e64.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI 99cc678edebe5f5a8201167ee9d46e64.exe - Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ Process not Found Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Process not Found - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4680 99cc678edebe5f5a8201167ee9d46e64.exe 4680 99cc678edebe5f5a8201167ee9d46e64.exe 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found 376 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 376 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4680 99cc678edebe5f5a8201167ee9d46e64.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 376 Process not Found 376 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4440 wrote to memory of 4680 4440 99cc678edebe5f5a8201167ee9d46e64.exe 83 PID 4440 wrote to memory of 4680 4440 99cc678edebe5f5a8201167ee9d46e64.exe 83 PID 4440 wrote to memory of 4680 4440 99cc678edebe5f5a8201167ee9d46e64.exe 83 PID 4440 wrote to memory of 4680 4440 99cc678edebe5f5a8201167ee9d46e64.exe 83 PID 4440 wrote to memory of 4680 4440 99cc678edebe5f5a8201167ee9d46e64.exe 83 PID 4440 wrote to memory of 4680 4440 99cc678edebe5f5a8201167ee9d46e64.exe 83
Processes
-
C:\Users\Admin\AppData\Local\Temp\99cc678edebe5f5a8201167ee9d46e64.exe"C:\Users\Admin\AppData\Local\Temp\99cc678edebe5f5a8201167ee9d46e64.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4440 -
C:\Users\Admin\AppData\Local\Temp\99cc678edebe5f5a8201167ee9d46e64.exe"C:\Users\Admin\AppData\Local\Temp\99cc678edebe5f5a8201167ee9d46e64.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4680
-