Analysis
- max time kernel
150s - 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
04/02/2023, 22:09
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 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 191KB
- Sample230204-12rxhseg95
- SHA256 ab56e8a253ce2a386cb936751ccbe3ff7d32deedb4adcc32bfd8ba29c561a4fe
- MD5 4e1bbbe21b1f7b12d5a8d09dee8d19f4
- SHA1 5dcab8a96c620afa4b14f895ec24653bbd610c08
- SHA512 72e7b59d648408052dfa30764007172ad0434b3c4b5c2e317cae0b7ec65a49b8411e9c887225febb4d9f3f6fcb813b4be4ae9aba6488788903223e4e79e90e8c
- SSDEEP 3072:ZtGOkY/x7EqjL0vWDWzko5xM0dpwEvPuF95/+btHIS0X1q4TUkK6GN:ZtG2JfjL0eDnWwEXuF95/CHyF6kKjN
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/880-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4276-135-0x0000000000730000-0x0000000000739000-memory.dmp family_smokeloader behavioral2/memory/880-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/880-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3092-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3092-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2704 wgtgdvw 3092 wgtgdvw - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4276 set thread context of 880 4276 file.exe 84 PID 2704 set thread context of 3092 2704 wgtgdvw 90 - 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 wgtgdvw Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wgtgdvw Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI wgtgdvw - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 880 file.exe 880 file.exe 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found 372 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 372 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 880 file.exe 3092 wgtgdvw - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 372 Process not Found Token: SeCreatePagefilePrivilege 372 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4276 wrote to memory of 880 4276 file.exe 84 PID 4276 wrote to memory of 880 4276 file.exe 84 PID 4276 wrote to memory of 880 4276 file.exe 84 PID 4276 wrote to memory of 880 4276 file.exe 84 PID 4276 wrote to memory of 880 4276 file.exe 84 PID 4276 wrote to memory of 880 4276 file.exe 84 PID 2704 wrote to memory of 3092 2704 wgtgdvw 90 PID 2704 wrote to memory of 3092 2704 wgtgdvw 90 PID 2704 wrote to memory of 3092 2704 wgtgdvw 90 PID 2704 wrote to memory of 3092 2704 wgtgdvw 90 PID 2704 wrote to memory of 3092 2704 wgtgdvw 90 PID 2704 wrote to memory of 3092 2704 wgtgdvw 90
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:4276 -
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:880
-
-
C:\Users\Admin\AppData\Roaming\wgtgdvwC:\Users\Admin\AppData\Roaming\wgtgdvw1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2704 -
C:\Users\Admin\AppData\Roaming\wgtgdvwC:\Users\Admin\AppData\Roaming\wgtgdvw2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3092
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\wgtgdvw
- Size 191KB
- SHA256 ab56e8a253ce2a386cb936751ccbe3ff7d32deedb4adcc32bfd8ba29c561a4fe
- MD5 4e1bbbe21b1f7b12d5a8d09dee8d19f4
- SHA1 5dcab8a96c620afa4b14f895ec24653bbd610c08
- SHA512 72e7b59d648408052dfa30764007172ad0434b3c4b5c2e317cae0b7ec65a49b8411e9c887225febb4d9f3f6fcb813b4be4ae9aba6488788903223e4e79e90e8c
- SSDEEP 3072:ZtGOkY/x7EqjL0vWDWzko5xM0dpwEvPuF95/+btHIS0X1q4TUkK6GN:ZtG2JfjL0eDnWwEXuF95/CHyF6kKjN
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wgtgdvw
- Size 191KB
- SHA256 ab56e8a253ce2a386cb936751ccbe3ff7d32deedb4adcc32bfd8ba29c561a4fe
- MD5 4e1bbbe21b1f7b12d5a8d09dee8d19f4
- SHA1 5dcab8a96c620afa4b14f895ec24653bbd610c08
- SHA512 72e7b59d648408052dfa30764007172ad0434b3c4b5c2e317cae0b7ec65a49b8411e9c887225febb4d9f3f6fcb813b4be4ae9aba6488788903223e4e79e90e8c
- SSDEEP 3072:ZtGOkY/x7EqjL0vWDWzko5xM0dpwEvPuF95/+btHIS0X1q4TUkK6GN:ZtG2JfjL0eDnWwEXuF95/CHyF6kKjN
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\wgtgdvw
- Size 191KB
- SHA256 ab56e8a253ce2a386cb936751ccbe3ff7d32deedb4adcc32bfd8ba29c561a4fe
- MD5 4e1bbbe21b1f7b12d5a8d09dee8d19f4
- SHA1 5dcab8a96c620afa4b14f895ec24653bbd610c08
- SHA512 72e7b59d648408052dfa30764007172ad0434b3c4b5c2e317cae0b7ec65a49b8411e9c887225febb4d9f3f6fcb813b4be4ae9aba6488788903223e4e79e90e8c
- SSDEEP 3072:ZtGOkY/x7EqjL0vWDWzko5xM0dpwEvPuF95/+btHIS0X1q4TUkK6GN:ZtG2JfjL0eDnWwEXuF95/CHyF6kKjN
- MD5 SHA1 SHA512 SSDEEP