Analysis
-
max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
06-02-2023 20:48
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
General
-
Target
file.exe
-
Size
300KB
-
MD5
0f700e4b1a6487ac2aa66a4364fa1d49
-
SHA1
be348e7999158ed52fb5c01d601152930c28dbfc
-
SHA256
fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c
-
SHA512
6472512a879ca1a872f8181214ba0078fcf128a17cdc71e23d0b8c21fde5f9ef39d4383838aa06568e79a0258997fedc04edf8dafc2486eb5d80d03fd4365692
-
SSDEEP
3072:C5Ob6bxOkLsZDRGXDeRTHK3TSFK2adEPDGsuQjiMTE5i6ydk4qafZi:CM63LogTeRGDSUFOysuQj9Pjqah
Malware Config
Signatures
-
Detects Smokeloader packer 6 IoCs
Processes:
resource yara_rule behavioral2/memory/3556-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4756-135-0x0000000000590000-0x0000000000599000-memory.dmp family_smokeloader behavioral2/memory/3556-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3556-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3396-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3396-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader -
SmokeLoader
Modular backdoor trojan in use since 2014.
-
Executes dropped EXE 2 IoCs
Processes:
vhtacdfvhtacdfpid process 3140 vhtacdf 3396 vhtacdf -
Suspicious use of SetThreadContext 2 IoCs
Processes:
file.exevhtacdfdescription pid process target process PID 4756 set thread context of 3556 4756 file.exe file.exe PID 3140 set thread context of 3396 3140 vhtacdf vhtacdf -
Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
Processes:
file.exevhtacdfdescription 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 vhtacdf Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI vhtacdf Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI vhtacdf -
Modifies registry class 3 IoCs
Processes:
description ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\ Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
file.exepid process 3556 file.exe 3556 file.exe 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 2632 -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
pid process 2632 -
Suspicious behavior: MapViewOfSection 2 IoCs
Processes:
file.exevhtacdfpid process 3556 file.exe 3396 vhtacdf -
Suspicious use of AdjustPrivilegeToken 8 IoCs
Processes:
description pid process Token: SeShutdownPrivilege 2632 Token: SeCreatePagefilePrivilege 2632 Token: SeShutdownPrivilege 2632 Token: SeCreatePagefilePrivilege 2632 Token: SeShutdownPrivilege 2632 Token: SeCreatePagefilePrivilege 2632 Token: SeShutdownPrivilege 2632 Token: SeCreatePagefilePrivilege 2632 -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
pid process 2632 2632 -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
file.exevhtacdfdescription pid process target process PID 4756 wrote to memory of 3556 4756 file.exe file.exe PID 4756 wrote to memory of 3556 4756 file.exe file.exe PID 4756 wrote to memory of 3556 4756 file.exe file.exe PID 4756 wrote to memory of 3556 4756 file.exe file.exe PID 4756 wrote to memory of 3556 4756 file.exe file.exe PID 4756 wrote to memory of 3556 4756 file.exe file.exe PID 3140 wrote to memory of 3396 3140 vhtacdf vhtacdf PID 3140 wrote to memory of 3396 3140 vhtacdf vhtacdf PID 3140 wrote to memory of 3396 3140 vhtacdf vhtacdf PID 3140 wrote to memory of 3396 3140 vhtacdf vhtacdf PID 3140 wrote to memory of 3396 3140 vhtacdf vhtacdf PID 3140 wrote to memory of 3396 3140 vhtacdf vhtacdf
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
-
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
-
C:\Users\Admin\AppData\Roaming\vhtacdfC:\Users\Admin\AppData\Roaming\vhtacdf1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\vhtacdfC:\Users\Admin\AppData\Roaming\vhtacdf2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Roaming\vhtacdfFilesize
300KB
MD50f700e4b1a6487ac2aa66a4364fa1d49
SHA1be348e7999158ed52fb5c01d601152930c28dbfc
SHA256fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c
SHA5126472512a879ca1a872f8181214ba0078fcf128a17cdc71e23d0b8c21fde5f9ef39d4383838aa06568e79a0258997fedc04edf8dafc2486eb5d80d03fd4365692
-
C:\Users\Admin\AppData\Roaming\vhtacdfFilesize
300KB
MD50f700e4b1a6487ac2aa66a4364fa1d49
SHA1be348e7999158ed52fb5c01d601152930c28dbfc
SHA256fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c
SHA5126472512a879ca1a872f8181214ba0078fcf128a17cdc71e23d0b8c21fde5f9ef39d4383838aa06568e79a0258997fedc04edf8dafc2486eb5d80d03fd4365692
-
C:\Users\Admin\AppData\Roaming\vhtacdfFilesize
300KB
MD50f700e4b1a6487ac2aa66a4364fa1d49
SHA1be348e7999158ed52fb5c01d601152930c28dbfc
SHA256fb7ea2b876c6a5352336f12df2b4029fc06aea96b70b0e8be560ebecd943026c
SHA5126472512a879ca1a872f8181214ba0078fcf128a17cdc71e23d0b8c21fde5f9ef39d4383838aa06568e79a0258997fedc04edf8dafc2486eb5d80d03fd4365692
-
memory/3140-143-0x000000000069F000-0x00000000006B5000-memory.dmpFilesize
88KB
-
memory/3396-140-0x0000000000000000-mapping.dmp
-
memory/3396-144-0x0000000000400000-0x0000000000409000-memory.dmpFilesize
36KB
-
memory/3396-145-0x0000000000400000-0x0000000000409000-memory.dmpFilesize
36KB
-
memory/3556-136-0x0000000000400000-0x0000000000409000-memory.dmpFilesize
36KB
-
memory/3556-137-0x0000000000400000-0x0000000000409000-memory.dmpFilesize
36KB
-
memory/3556-133-0x0000000000400000-0x0000000000409000-memory.dmpFilesize
36KB
-
memory/3556-132-0x0000000000000000-mapping.dmp
-
memory/4756-135-0x0000000000590000-0x0000000000599000-memory.dmpFilesize
36KB
-
memory/4756-134-0x00000000005DE000-0x00000000005F4000-memory.dmpFilesize
88KB