Analysis
- max time kernel
151s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
24/01/2023, 16:28
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-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 176KB
- Sample230124-tym1tscf38
- SHA256 81bc08fabf2c6786e3c0c275e30b09e85d895ffc2ffdcdff7ca1b135b4f22fff
- MD5 9ce236fd0aca0ba9164b47b0aa057b6e
- SHA1 2f4b6bcc6ba9e95aff47af18b990be3aa436cfa1
- SHA512 c8fa9090f338b2c1908e29c4accca958bc32eaca554b027dcdd86713feb3bc0a32205c4009a8e9001f40ee43e9f003554222b5442176023e9ab8fa9a2e903996
- SSDEEP 3072:9lBN2HwQY33PLFFM2705ciehB/aFALU2hfgY1xycreBbe5FT8:txPL7H7p/BLNhd8creJe5F
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/5080-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4804-135-0x0000000002D30000-0x0000000002D39000-memory.dmp family_smokeloader behavioral2/memory/5080-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5080-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1508-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1508-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2368 resbggg 1508 resbggg - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4804 set thread context of 5080 4804 file.exe 82 PID 2368 set thread context of 1508 2368 resbggg 92 - 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 resbggg Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI resbggg Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI resbggg 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 5080 file.exe 5080 file.exe 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found 2520 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2520 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 5080 file.exe 1508 resbggg - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2520 Process not Found Token: SeCreatePagefilePrivilege 2520 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4804 wrote to memory of 5080 4804 file.exe 82 PID 4804 wrote to memory of 5080 4804 file.exe 82 PID 4804 wrote to memory of 5080 4804 file.exe 82 PID 4804 wrote to memory of 5080 4804 file.exe 82 PID 4804 wrote to memory of 5080 4804 file.exe 82 PID 4804 wrote to memory of 5080 4804 file.exe 82 PID 2368 wrote to memory of 1508 2368 resbggg 92 PID 2368 wrote to memory of 1508 2368 resbggg 92 PID 2368 wrote to memory of 1508 2368 resbggg 92 PID 2368 wrote to memory of 1508 2368 resbggg 92 PID 2368 wrote to memory of 1508 2368 resbggg 92 PID 2368 wrote to memory of 1508 2368 resbggg 92
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:4804 -
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:5080
-
-
C:\Users\Admin\AppData\Roaming\resbgggC:\Users\Admin\AppData\Roaming\resbggg1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2368 -
C:\Users\Admin\AppData\Roaming\resbgggC:\Users\Admin\AppData\Roaming\resbggg2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1508
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\resbggg
- Size 176KB
- SHA256 81bc08fabf2c6786e3c0c275e30b09e85d895ffc2ffdcdff7ca1b135b4f22fff
- MD5 9ce236fd0aca0ba9164b47b0aa057b6e
- SHA1 2f4b6bcc6ba9e95aff47af18b990be3aa436cfa1
- SHA512 c8fa9090f338b2c1908e29c4accca958bc32eaca554b027dcdd86713feb3bc0a32205c4009a8e9001f40ee43e9f003554222b5442176023e9ab8fa9a2e903996
- SSDEEP 3072:9lBN2HwQY33PLFFM2705ciehB/aFALU2hfgY1xycreBbe5FT8:txPL7H7p/BLNhd8creJe5F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\resbggg
- Size 176KB
- SHA256 81bc08fabf2c6786e3c0c275e30b09e85d895ffc2ffdcdff7ca1b135b4f22fff
- MD5 9ce236fd0aca0ba9164b47b0aa057b6e
- SHA1 2f4b6bcc6ba9e95aff47af18b990be3aa436cfa1
- SHA512 c8fa9090f338b2c1908e29c4accca958bc32eaca554b027dcdd86713feb3bc0a32205c4009a8e9001f40ee43e9f003554222b5442176023e9ab8fa9a2e903996
- SSDEEP 3072:9lBN2HwQY33PLFFM2705ciehB/aFALU2hfgY1xycreBbe5FT8:txPL7H7p/BLNhd8creJe5F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\resbggg
- Size 176KB
- SHA256 81bc08fabf2c6786e3c0c275e30b09e85d895ffc2ffdcdff7ca1b135b4f22fff
- MD5 9ce236fd0aca0ba9164b47b0aa057b6e
- SHA1 2f4b6bcc6ba9e95aff47af18b990be3aa436cfa1
- SHA512 c8fa9090f338b2c1908e29c4accca958bc32eaca554b027dcdd86713feb3bc0a32205c4009a8e9001f40ee43e9f003554222b5442176023e9ab8fa9a2e903996
- SSDEEP 3072:9lBN2HwQY33PLFFM2705ciehB/aFALU2hfgY1xycreBbe5FT8:txPL7H7p/BLNhd8creJe5F
- MD5 SHA1 SHA512 SSDEEP