Analysis
- max time kernel
150s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
15/12/2022, 16:57
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
9 signatures
150 seconds
General
- Target file.exe
- Size 328KB
- Sample221215-vf811sch35
- SHA256 026e364c84eac1b9dbfa425c36ea5b2160968241d04d46d031a7f4100bd39ba5
- MD5 e3ca3f5d63f85741c5cbeb7bd115fbb0
- SHA1 f22b410dbf93ae98969ea6dd867c19a66361386e
- SHA512 8b9b00c2ae1d2343cf6c4ff2f6c2b0e38423459779f6d8ca3914ef19c2591e56553f782ff9e26ecaa3572d366984a22d316fd4d2a01356c6866fe43fcd51f106
- SSDEEP 6144:yYltvLU+9V06mwnXXEj8xR0isvzpQ6ijLxQFiaIN:Rv4+9OwEj8xRxqzpQ6ijqF
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/1744-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4700-135-0x00000000005E0000-0x00000000005E9000-memory.dmp family_smokeloader behavioral2/memory/1744-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1744-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4700 set thread context of 1744 4700 file.exe 82 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1744 file.exe 1744 file.exe 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found 1108 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1108 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 1744 file.exe - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 1108 Process not Found Token: SeCreatePagefilePrivilege 1108 Process not Found Token: SeShutdownPrivilege 1108 Process not Found Token: SeCreatePagefilePrivilege 1108 Process not Found Token: SeShutdownPrivilege 1108 Process not Found Token: SeCreatePagefilePrivilege 1108 Process not Found Token: SeShutdownPrivilege 1108 Process not Found Token: SeCreatePagefilePrivilege 1108 Process not Found Token: SeShutdownPrivilege 1108 Process not Found Token: SeCreatePagefilePrivilege 1108 Process not Found Token: SeShutdownPrivilege 1108 Process not Found Token: SeCreatePagefilePrivilege 1108 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4700 wrote to memory of 1744 4700 file.exe 82 PID 4700 wrote to memory of 1744 4700 file.exe 82 PID 4700 wrote to memory of 1744 4700 file.exe 82 PID 4700 wrote to memory of 1744 4700 file.exe 82 PID 4700 wrote to memory of 1744 4700 file.exe 82 PID 4700 wrote to memory of 1744 4700 file.exe 82
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:4700 -
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:1744
-