Analysis
- max time kernel
151s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
18/12/2022, 15:28
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
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 214KB
- Sample221218-swbdksce88
- SHA256 826c8deb1006155a2c9986b4371fcdfd63aeefd6d0668ac04ed0424756a79186
- MD5 06147209bb3912359299a8a60a45bfd0
- SHA1 6c5ede7601af477eadb8ffae77ac8664998704ef
- SHA512 1065687e856a907ed4237d4133786135e342948553122ed6ea93629fb151ab9df48a9db2b36daddb1d54e7bbdac1e06ebfd1b74938a3896f9104c1137e742ec6
- SSDEEP 3072:M5wf6EL32yrAqRhTnZWMWK5TSlDxkIgg3u5x0HOil3lk025PH:QsPL3vrAoZaK5O/p+X0jlVklPH
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/3844-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3044-135-0x0000000000570000-0x0000000000579000-memory.dmp family_smokeloader behavioral2/memory/3844-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3844-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2152-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2152-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 1636 vbvdbgb 2152 vbvdbgb - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3044 set thread context of 3844 3044 file.exe 81 PID 1636 set thread context of 2152 1636 vbvdbgb 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 vbvdbgb Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI vbvdbgb Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI vbvdbgb - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3844 file.exe 3844 file.exe 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found 2220 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2220 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3844 file.exe 2152 vbvdbgb - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2220 Process not Found Token: SeCreatePagefilePrivilege 2220 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3044 wrote to memory of 3844 3044 file.exe 81 PID 3044 wrote to memory of 3844 3044 file.exe 81 PID 3044 wrote to memory of 3844 3044 file.exe 81 PID 3044 wrote to memory of 3844 3044 file.exe 81 PID 3044 wrote to memory of 3844 3044 file.exe 81 PID 3044 wrote to memory of 3844 3044 file.exe 81 PID 1636 wrote to memory of 2152 1636 vbvdbgb 90 PID 1636 wrote to memory of 2152 1636 vbvdbgb 90 PID 1636 wrote to memory of 2152 1636 vbvdbgb 90 PID 1636 wrote to memory of 2152 1636 vbvdbgb 90 PID 1636 wrote to memory of 2152 1636 vbvdbgb 90 PID 1636 wrote to memory of 2152 1636 vbvdbgb 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:3044 -
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:3844
-
-
C:\Users\Admin\AppData\Roaming\vbvdbgbC:\Users\Admin\AppData\Roaming\vbvdbgb1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1636 -
C:\Users\Admin\AppData\Roaming\vbvdbgbC:\Users\Admin\AppData\Roaming\vbvdbgb2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2152
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\vbvdbgb
- Size 214KB
- SHA256 826c8deb1006155a2c9986b4371fcdfd63aeefd6d0668ac04ed0424756a79186
- MD5 06147209bb3912359299a8a60a45bfd0
- SHA1 6c5ede7601af477eadb8ffae77ac8664998704ef
- SHA512 1065687e856a907ed4237d4133786135e342948553122ed6ea93629fb151ab9df48a9db2b36daddb1d54e7bbdac1e06ebfd1b74938a3896f9104c1137e742ec6
- SSDEEP 3072:M5wf6EL32yrAqRhTnZWMWK5TSlDxkIgg3u5x0HOil3lk025PH:QsPL3vrAoZaK5O/p+X0jlVklPH
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\vbvdbgb
- Size 214KB
- SHA256 826c8deb1006155a2c9986b4371fcdfd63aeefd6d0668ac04ed0424756a79186
- MD5 06147209bb3912359299a8a60a45bfd0
- SHA1 6c5ede7601af477eadb8ffae77ac8664998704ef
- SHA512 1065687e856a907ed4237d4133786135e342948553122ed6ea93629fb151ab9df48a9db2b36daddb1d54e7bbdac1e06ebfd1b74938a3896f9104c1137e742ec6
- SSDEEP 3072:M5wf6EL32yrAqRhTnZWMWK5TSlDxkIgg3u5x0HOil3lk025PH:QsPL3vrAoZaK5O/p+X0jlVklPH
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\vbvdbgb
- Size 214KB
- SHA256 826c8deb1006155a2c9986b4371fcdfd63aeefd6d0668ac04ed0424756a79186
- MD5 06147209bb3912359299a8a60a45bfd0
- SHA1 6c5ede7601af477eadb8ffae77ac8664998704ef
- SHA512 1065687e856a907ed4237d4133786135e342948553122ed6ea93629fb151ab9df48a9db2b36daddb1d54e7bbdac1e06ebfd1b74938a3896f9104c1137e742ec6
- SSDEEP 3072:M5wf6EL32yrAqRhTnZWMWK5TSlDxkIgg3u5x0HOil3lk025PH:QsPL3vrAoZaK5O/p+X0jlVklPH
- MD5 SHA1 SHA512 SSDEEP