Analysis
- max time kernel
151s - max time network
125s - 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, 12:08
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 215KB
- Sample221218-pawkvaef8y
- SHA256 08e65009ccd9ada0728cc2487220f440984cb2f846fc465e9b47ded8a0968c94
- MD5 b041ea9fd0a982838f03f7450c7c5fb6
- SHA1 a9984b0f17a11f9f7018b01a7e472f8d6e57ff39
- SHA512 f6b2a3feb6397564e6f28a45b7c5c684ee34b864727d162dc40c338135af3e8a9d439424f32c178d292b37caba5a8039dbafe00812c2984dec44b2521be28b38
- SSDEEP 3072:MmIoxYLB3RtkoOFuT0ZixckAfQT1QqO6ng3uVPZHOil3lk025PH:TIkYLBEoO4gZixsC1QqOT+VhjlVklPH
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/1516-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2440-135-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/1516-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1516-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4852-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4852-146-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4788 fjujvgt 4852 fjujvgt - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2440 set thread context of 1516 2440 file.exe 79 PID 4788 set thread context of 4852 4788 fjujvgt 88 - 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 fjujvgt Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI fjujvgt 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 fjujvgt - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1516 file.exe 1516 file.exe 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found 3052 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3052 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1516 file.exe 4852 fjujvgt - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 3052 Process not Found Token: SeCreatePagefilePrivilege 3052 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2440 wrote to memory of 1516 2440 file.exe 79 PID 2440 wrote to memory of 1516 2440 file.exe 79 PID 2440 wrote to memory of 1516 2440 file.exe 79 PID 2440 wrote to memory of 1516 2440 file.exe 79 PID 2440 wrote to memory of 1516 2440 file.exe 79 PID 2440 wrote to memory of 1516 2440 file.exe 79 PID 4788 wrote to memory of 4852 4788 fjujvgt 88 PID 4788 wrote to memory of 4852 4788 fjujvgt 88 PID 4788 wrote to memory of 4852 4788 fjujvgt 88 PID 4788 wrote to memory of 4852 4788 fjujvgt 88 PID 4788 wrote to memory of 4852 4788 fjujvgt 88 PID 4788 wrote to memory of 4852 4788 fjujvgt 88
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:2440 -
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:1516
-
-
C:\Users\Admin\AppData\Roaming\fjujvgtC:\Users\Admin\AppData\Roaming\fjujvgt1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4788 -
C:\Users\Admin\AppData\Roaming\fjujvgtC:\Users\Admin\AppData\Roaming\fjujvgt2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4852
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\fjujvgt
- Size 215KB
- SHA256 08e65009ccd9ada0728cc2487220f440984cb2f846fc465e9b47ded8a0968c94
- MD5 b041ea9fd0a982838f03f7450c7c5fb6
- SHA1 a9984b0f17a11f9f7018b01a7e472f8d6e57ff39
- SHA512 f6b2a3feb6397564e6f28a45b7c5c684ee34b864727d162dc40c338135af3e8a9d439424f32c178d292b37caba5a8039dbafe00812c2984dec44b2521be28b38
- SSDEEP 3072:MmIoxYLB3RtkoOFuT0ZixckAfQT1QqO6ng3uVPZHOil3lk025PH:TIkYLBEoO4gZixsC1QqOT+VhjlVklPH
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fjujvgt
- Size 215KB
- SHA256 08e65009ccd9ada0728cc2487220f440984cb2f846fc465e9b47ded8a0968c94
- MD5 b041ea9fd0a982838f03f7450c7c5fb6
- SHA1 a9984b0f17a11f9f7018b01a7e472f8d6e57ff39
- SHA512 f6b2a3feb6397564e6f28a45b7c5c684ee34b864727d162dc40c338135af3e8a9d439424f32c178d292b37caba5a8039dbafe00812c2984dec44b2521be28b38
- SSDEEP 3072:MmIoxYLB3RtkoOFuT0ZixckAfQT1QqO6ng3uVPZHOil3lk025PH:TIkYLBEoO4gZixsC1QqOT+VhjlVklPH
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\fjujvgt
- Size 215KB
- SHA256 08e65009ccd9ada0728cc2487220f440984cb2f846fc465e9b47ded8a0968c94
- MD5 b041ea9fd0a982838f03f7450c7c5fb6
- SHA1 a9984b0f17a11f9f7018b01a7e472f8d6e57ff39
- SHA512 f6b2a3feb6397564e6f28a45b7c5c684ee34b864727d162dc40c338135af3e8a9d439424f32c178d292b37caba5a8039dbafe00812c2984dec44b2521be28b38
- SSDEEP 3072:MmIoxYLB3RtkoOFuT0ZixckAfQT1QqO6ng3uVPZHOil3lk025PH:TIkYLBEoO4gZixsC1QqOT+VhjlVklPH
- MD5 SHA1 SHA512 SSDEEP