Analysis
- max time kernel
151s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
18/01/2023, 03:28
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
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 271KB
- Sample230118-d1cd4sdb6x
- SHA256 87e8c18a213d3b7fde1d8ea0a66359b9755554b23dcc2cf7604f4c24920b35e6
- MD5 581e8618104860fe68c15c55b1fcb9c2
- SHA1 a087acad6d6944ff29237af20af97fdd9f4b93a7
- SHA512 6f5dbfb3a75f78f7eaf09ce04f44e1e368ead1257c5c80e5f0b0a27dbd9110efae26ef0a2398cebb78b13f24c56e14c77d8bf3f8b0dd7a1a23cda088e0fa2566
- SSDEEP 3072:lX302CrNtsui9+p5HLcVhCkXzNLVQnqSIr4VPvB9a4m0TAt4qndE8SUlutGm:hloc99+XcrCkhVQqSIrUPPaZ0T+LdKt
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2928-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2276-135-0x0000000002E40000-0x0000000002E49000-memory.dmp family_smokeloader behavioral2/memory/2928-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2928-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4612-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4612-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4628 hwgwuuh 4612 hwgwuuh - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2276 set thread context of 2928 2276 file.exe 79 PID 4628 set thread context of 4612 4628 hwgwuuh 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 hwgwuuh Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI hwgwuuh Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI hwgwuuh - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2928 file.exe 2928 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 2928 file.exe 4612 hwgwuuh - 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 2276 wrote to memory of 2928 2276 file.exe 79 PID 2276 wrote to memory of 2928 2276 file.exe 79 PID 2276 wrote to memory of 2928 2276 file.exe 79 PID 2276 wrote to memory of 2928 2276 file.exe 79 PID 2276 wrote to memory of 2928 2276 file.exe 79 PID 2276 wrote to memory of 2928 2276 file.exe 79 PID 4628 wrote to memory of 4612 4628 hwgwuuh 88 PID 4628 wrote to memory of 4612 4628 hwgwuuh 88 PID 4628 wrote to memory of 4612 4628 hwgwuuh 88 PID 4628 wrote to memory of 4612 4628 hwgwuuh 88 PID 4628 wrote to memory of 4612 4628 hwgwuuh 88 PID 4628 wrote to memory of 4612 4628 hwgwuuh 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:2276 -
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:2928
-
-
C:\Users\Admin\AppData\Roaming\hwgwuuhC:\Users\Admin\AppData\Roaming\hwgwuuh1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4628 -
C:\Users\Admin\AppData\Roaming\hwgwuuhC:\Users\Admin\AppData\Roaming\hwgwuuh2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4612
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\hwgwuuh
- Size 271KB
- SHA256 87e8c18a213d3b7fde1d8ea0a66359b9755554b23dcc2cf7604f4c24920b35e6
- MD5 581e8618104860fe68c15c55b1fcb9c2
- SHA1 a087acad6d6944ff29237af20af97fdd9f4b93a7
- SHA512 6f5dbfb3a75f78f7eaf09ce04f44e1e368ead1257c5c80e5f0b0a27dbd9110efae26ef0a2398cebb78b13f24c56e14c77d8bf3f8b0dd7a1a23cda088e0fa2566
- SSDEEP 3072:lX302CrNtsui9+p5HLcVhCkXzNLVQnqSIr4VPvB9a4m0TAt4qndE8SUlutGm:hloc99+XcrCkhVQqSIrUPPaZ0T+LdKt
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\hwgwuuh
- Size 271KB
- SHA256 87e8c18a213d3b7fde1d8ea0a66359b9755554b23dcc2cf7604f4c24920b35e6
- MD5 581e8618104860fe68c15c55b1fcb9c2
- SHA1 a087acad6d6944ff29237af20af97fdd9f4b93a7
- SHA512 6f5dbfb3a75f78f7eaf09ce04f44e1e368ead1257c5c80e5f0b0a27dbd9110efae26ef0a2398cebb78b13f24c56e14c77d8bf3f8b0dd7a1a23cda088e0fa2566
- SSDEEP 3072:lX302CrNtsui9+p5HLcVhCkXzNLVQnqSIr4VPvB9a4m0TAt4qndE8SUlutGm:hloc99+XcrCkhVQqSIrUPPaZ0T+LdKt
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\hwgwuuh
- Size 271KB
- SHA256 87e8c18a213d3b7fde1d8ea0a66359b9755554b23dcc2cf7604f4c24920b35e6
- MD5 581e8618104860fe68c15c55b1fcb9c2
- SHA1 a087acad6d6944ff29237af20af97fdd9f4b93a7
- SHA512 6f5dbfb3a75f78f7eaf09ce04f44e1e368ead1257c5c80e5f0b0a27dbd9110efae26ef0a2398cebb78b13f24c56e14c77d8bf3f8b0dd7a1a23cda088e0fa2566
- SSDEEP 3072:lX302CrNtsui9+p5HLcVhCkXzNLVQnqSIr4VPvB9a4m0TAt4qndE8SUlutGm:hloc99+XcrCkhVQqSIrUPPaZ0T+LdKt
- MD5 SHA1 SHA512 SSDEEP