Analysis
- max time kernel
150s - max time network
128s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
11/02/2023, 13:08
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
win10v2004-20220901-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 236KB
- Sample230211-qc8hvsda4s
- SHA256 323dcfac8ae69cf2244cd5c5d343eddc357aef1dc90521b43bf7798480a32e70
- MD5 8f3176611f8ff419379acf1766a74a0d
- SHA1 94f395d5c0a2c18adf26fb917b7aa1d0b9eae4a2
- SHA512 6b78a0c9daa65e7b28cab03a5706c54b32b50738d36ebf674fe1ffe4f630757dff6ac3df4a1d84c87d8adc4162a65d5d3bdf82c3465e385e9fae0aeec56ab8ec
- SSDEEP 3072:itgHXn41ohUYpVTS5BrpuT830qVS+AvyzjXTJ9NltEyvee68cP:GuX4e3TK1g83pyyHXzNltxvn68c
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4548-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3256-135-0x00000000023D0000-0x00000000023D9000-memory.dmp family_smokeloader behavioral2/memory/4548-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4548-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2568-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2568-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4556 hudseaa 2568 hudseaa - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3256 set thread context of 4548 3256 file.exe 83 PID 4556 set thread context of 2568 4556 hudseaa 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 hudseaa Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI hudseaa Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI hudseaa 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 4548 file.exe 4548 file.exe 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found 1040 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1040 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4548 file.exe 2568 hudseaa - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 1040 Process not Found Token: SeCreatePagefilePrivilege 1040 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3256 wrote to memory of 4548 3256 file.exe 83 PID 3256 wrote to memory of 4548 3256 file.exe 83 PID 3256 wrote to memory of 4548 3256 file.exe 83 PID 3256 wrote to memory of 4548 3256 file.exe 83 PID 3256 wrote to memory of 4548 3256 file.exe 83 PID 3256 wrote to memory of 4548 3256 file.exe 83 PID 4556 wrote to memory of 2568 4556 hudseaa 90 PID 4556 wrote to memory of 2568 4556 hudseaa 90 PID 4556 wrote to memory of 2568 4556 hudseaa 90 PID 4556 wrote to memory of 2568 4556 hudseaa 90 PID 4556 wrote to memory of 2568 4556 hudseaa 90 PID 4556 wrote to memory of 2568 4556 hudseaa 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:3256 -
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:4548
-
-
C:\Users\Admin\AppData\Roaming\hudseaaC:\Users\Admin\AppData\Roaming\hudseaa1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4556 -
C:\Users\Admin\AppData\Roaming\hudseaaC:\Users\Admin\AppData\Roaming\hudseaa2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:2568
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\hudseaa
- Size 236KB
- SHA256 323dcfac8ae69cf2244cd5c5d343eddc357aef1dc90521b43bf7798480a32e70
- MD5 8f3176611f8ff419379acf1766a74a0d
- SHA1 94f395d5c0a2c18adf26fb917b7aa1d0b9eae4a2
- SHA512 6b78a0c9daa65e7b28cab03a5706c54b32b50738d36ebf674fe1ffe4f630757dff6ac3df4a1d84c87d8adc4162a65d5d3bdf82c3465e385e9fae0aeec56ab8ec
- SSDEEP 3072:itgHXn41ohUYpVTS5BrpuT830qVS+AvyzjXTJ9NltEyvee68cP:GuX4e3TK1g83pyyHXzNltxvn68c
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\hudseaa
- Size 236KB
- SHA256 323dcfac8ae69cf2244cd5c5d343eddc357aef1dc90521b43bf7798480a32e70
- MD5 8f3176611f8ff419379acf1766a74a0d
- SHA1 94f395d5c0a2c18adf26fb917b7aa1d0b9eae4a2
- SHA512 6b78a0c9daa65e7b28cab03a5706c54b32b50738d36ebf674fe1ffe4f630757dff6ac3df4a1d84c87d8adc4162a65d5d3bdf82c3465e385e9fae0aeec56ab8ec
- SSDEEP 3072:itgHXn41ohUYpVTS5BrpuT830qVS+AvyzjXTJ9NltEyvee68cP:GuX4e3TK1g83pyyHXzNltxvn68c
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\hudseaa
- Size 236KB
- SHA256 323dcfac8ae69cf2244cd5c5d343eddc357aef1dc90521b43bf7798480a32e70
- MD5 8f3176611f8ff419379acf1766a74a0d
- SHA1 94f395d5c0a2c18adf26fb917b7aa1d0b9eae4a2
- SHA512 6b78a0c9daa65e7b28cab03a5706c54b32b50738d36ebf674fe1ffe4f630757dff6ac3df4a1d84c87d8adc4162a65d5d3bdf82c3465e385e9fae0aeec56ab8ec
- SSDEEP 3072:itgHXn41ohUYpVTS5BrpuT830qVS+AvyzjXTJ9NltEyvee68cP:GuX4e3TK1g83pyyHXzNltxvn68c
- MD5 SHA1 SHA512 SSDEEP