Analysis
- max time kernel
151s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
27/12/2022, 13:59
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 297KB
- Sample221227-rad2xafa25
- SHA256 99e6df65c31270df7cf923f2afaf7de0b3094e71e83a76805ff2d31d3c3a1584
- MD5 7667d49d65f8341fedc8257d2d8544bc
- SHA1 deeded6bfec65a98c65fdbfe4d5df3561da7bca9
- SHA512 f51a25d983f5d49b502c8e231640af1189ea7f46dd8c44caeda69d4a61b856e5333ec2620d0dae9106b719ab6d9726f5e7d36922293fc667c60166216c6fdb52
- SSDEEP 6144:oabLA9SHoU19kVI58xQ3xDPkMo5zXbAc:xb8qoYWI58xaxDPyrbA
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/2444-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4244-135-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader behavioral2/memory/2444-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2444-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3472-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3472-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4752 ebcrdst 3472 ebcrdst - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4244 set thread context of 2444 4244 file.exe 78 PID 4752 set thread context of 3472 4752 ebcrdst 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 enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ebcrdst 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 ebcrdst Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI ebcrdst - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2444 file.exe 2444 file.exe 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found 2824 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2824 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2444 file.exe 3472 ebcrdst - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2824 Process not Found Token: SeCreatePagefilePrivilege 2824 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4244 wrote to memory of 2444 4244 file.exe 78 PID 4244 wrote to memory of 2444 4244 file.exe 78 PID 4244 wrote to memory of 2444 4244 file.exe 78 PID 4244 wrote to memory of 2444 4244 file.exe 78 PID 4244 wrote to memory of 2444 4244 file.exe 78 PID 4244 wrote to memory of 2444 4244 file.exe 78 PID 4752 wrote to memory of 3472 4752 ebcrdst 88 PID 4752 wrote to memory of 3472 4752 ebcrdst 88 PID 4752 wrote to memory of 3472 4752 ebcrdst 88 PID 4752 wrote to memory of 3472 4752 ebcrdst 88 PID 4752 wrote to memory of 3472 4752 ebcrdst 88 PID 4752 wrote to memory of 3472 4752 ebcrdst 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:4244 -
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:2444
-
-
C:\Users\Admin\AppData\Roaming\ebcrdstC:\Users\Admin\AppData\Roaming\ebcrdst1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4752 -
C:\Users\Admin\AppData\Roaming\ebcrdstC:\Users\Admin\AppData\Roaming\ebcrdst2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3472
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\ebcrdst
- Size 297KB
- SHA256 99e6df65c31270df7cf923f2afaf7de0b3094e71e83a76805ff2d31d3c3a1584
- MD5 7667d49d65f8341fedc8257d2d8544bc
- SHA1 deeded6bfec65a98c65fdbfe4d5df3561da7bca9
- SHA512 f51a25d983f5d49b502c8e231640af1189ea7f46dd8c44caeda69d4a61b856e5333ec2620d0dae9106b719ab6d9726f5e7d36922293fc667c60166216c6fdb52
- SSDEEP 6144:oabLA9SHoU19kVI58xQ3xDPkMo5zXbAc:xb8qoYWI58xaxDPyrbA
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\ebcrdst
- Size 297KB
- SHA256 99e6df65c31270df7cf923f2afaf7de0b3094e71e83a76805ff2d31d3c3a1584
- MD5 7667d49d65f8341fedc8257d2d8544bc
- SHA1 deeded6bfec65a98c65fdbfe4d5df3561da7bca9
- SHA512 f51a25d983f5d49b502c8e231640af1189ea7f46dd8c44caeda69d4a61b856e5333ec2620d0dae9106b719ab6d9726f5e7d36922293fc667c60166216c6fdb52
- SSDEEP 6144:oabLA9SHoU19kVI58xQ3xDPkMo5zXbAc:xb8qoYWI58xaxDPyrbA
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\ebcrdst
- Size 297KB
- SHA256 99e6df65c31270df7cf923f2afaf7de0b3094e71e83a76805ff2d31d3c3a1584
- MD5 7667d49d65f8341fedc8257d2d8544bc
- SHA1 deeded6bfec65a98c65fdbfe4d5df3561da7bca9
- SHA512 f51a25d983f5d49b502c8e231640af1189ea7f46dd8c44caeda69d4a61b856e5333ec2620d0dae9106b719ab6d9726f5e7d36922293fc667c60166216c6fdb52
- SSDEEP 6144:oabLA9SHoU19kVI58xQ3xDPkMo5zXbAc:xb8qoYWI58xaxDPyrbA
- MD5 SHA1 SHA512 SSDEEP