Analysis
- max time kernel
150s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
26/01/2023, 10:48
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 201KB
- Sample230126-mv5cdadd49
- SHA256 767d0097eaf452e9bf99a4428acecd1180f14889474cc8fe40073f4d61e06fc5
- MD5 7ed80923ee2020d232526864a240eabc
- SHA1 8b8199039ae47f78ef8ec36c83f161b4f77711a5
- SHA512 9db3e615a9687cc8b9ae4f9b8319d0e8e1a4d47ec93cc9ae3588fcb01d28d7e8e489d5c6f3c7ea41c6cc577615402b2ad6dfaed8b3419d4ac1efad63ad66c87d
- SSDEEP 3072:DBN2W/UFqLf0n+4Ai59ycIXenJzKv7Fj8bqIR0pMeyn6HQ/3Yqbq:NzLt4AoJ+v7FvA0e6HQJm
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/3172-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1092-135-0x0000000002C50000-0x0000000002C59000-memory.dmp family_smokeloader behavioral2/memory/3172-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3172-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3836-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3836-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 428 jjhsrhb 3836 jjhsrhb - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1092 set thread context of 3172 1092 file.exe 80 PID 428 set thread context of 3836 428 jjhsrhb 89 - Checks SCSI registry key(s) 3 TTPs 6 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI jjhsrhb Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI jjhsrhb 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 jjhsrhb - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3172 file.exe 3172 file.exe 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found 2228 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2228 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3172 file.exe 3836 jjhsrhb - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2228 Process not Found Token: SeCreatePagefilePrivilege 2228 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1092 wrote to memory of 3172 1092 file.exe 80 PID 1092 wrote to memory of 3172 1092 file.exe 80 PID 1092 wrote to memory of 3172 1092 file.exe 80 PID 1092 wrote to memory of 3172 1092 file.exe 80 PID 1092 wrote to memory of 3172 1092 file.exe 80 PID 1092 wrote to memory of 3172 1092 file.exe 80 PID 428 wrote to memory of 3836 428 jjhsrhb 89 PID 428 wrote to memory of 3836 428 jjhsrhb 89 PID 428 wrote to memory of 3836 428 jjhsrhb 89 PID 428 wrote to memory of 3836 428 jjhsrhb 89 PID 428 wrote to memory of 3836 428 jjhsrhb 89 PID 428 wrote to memory of 3836 428 jjhsrhb 89
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:1092 -
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:3172
-
-
C:\Users\Admin\AppData\Roaming\jjhsrhbC:\Users\Admin\AppData\Roaming\jjhsrhb1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:428 -
C:\Users\Admin\AppData\Roaming\jjhsrhbC:\Users\Admin\AppData\Roaming\jjhsrhb2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3836
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\jjhsrhb
- Size 201KB
- SHA256 767d0097eaf452e9bf99a4428acecd1180f14889474cc8fe40073f4d61e06fc5
- MD5 7ed80923ee2020d232526864a240eabc
- SHA1 8b8199039ae47f78ef8ec36c83f161b4f77711a5
- SHA512 9db3e615a9687cc8b9ae4f9b8319d0e8e1a4d47ec93cc9ae3588fcb01d28d7e8e489d5c6f3c7ea41c6cc577615402b2ad6dfaed8b3419d4ac1efad63ad66c87d
- SSDEEP 3072:DBN2W/UFqLf0n+4Ai59ycIXenJzKv7Fj8bqIR0pMeyn6HQ/3Yqbq:NzLt4AoJ+v7FvA0e6HQJm
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\jjhsrhb
- Size 201KB
- SHA256 767d0097eaf452e9bf99a4428acecd1180f14889474cc8fe40073f4d61e06fc5
- MD5 7ed80923ee2020d232526864a240eabc
- SHA1 8b8199039ae47f78ef8ec36c83f161b4f77711a5
- SHA512 9db3e615a9687cc8b9ae4f9b8319d0e8e1a4d47ec93cc9ae3588fcb01d28d7e8e489d5c6f3c7ea41c6cc577615402b2ad6dfaed8b3419d4ac1efad63ad66c87d
- SSDEEP 3072:DBN2W/UFqLf0n+4Ai59ycIXenJzKv7Fj8bqIR0pMeyn6HQ/3Yqbq:NzLt4AoJ+v7FvA0e6HQJm
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\jjhsrhb
- Size 201KB
- SHA256 767d0097eaf452e9bf99a4428acecd1180f14889474cc8fe40073f4d61e06fc5
- MD5 7ed80923ee2020d232526864a240eabc
- SHA1 8b8199039ae47f78ef8ec36c83f161b4f77711a5
- SHA512 9db3e615a9687cc8b9ae4f9b8319d0e8e1a4d47ec93cc9ae3588fcb01d28d7e8e489d5c6f3c7ea41c6cc577615402b2ad6dfaed8b3419d4ac1efad63ad66c87d
- SSDEEP 3072:DBN2W/UFqLf0n+4Ai59ycIXenJzKv7Fj8bqIR0pMeyn6HQ/3Yqbq:NzLt4AoJ+v7FvA0e6HQJm
- MD5 SHA1 SHA512 SSDEEP