Analysis
- max time kernel
150s - max time network
141s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
16/12/2022, 22:09
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
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 214KB
- Sample221216-12rxhsaf4v
- SHA256 af486b622b72d3e10ba04fac48af78e03b670b2e3b3264f076bb89df11dbf9d8
- MD5 a11ba3e9a909e7835f3b3b90162f0981
- SHA1 1da2f49196d08eb3bdc8dbf99a8530113fd9329e
- SHA512 08ab7b79424142524f667375b980671672fbe4825266c45904b6bce35537bb36a59af6128a84cfe4e8e75e849f64b3994c96921143275405f14acd25fd837a9e
- SSDEEP 6144:+hHyLiXk1o2fz3x2QV7mQ2gzGAa40M2b:+8skagz39NTKA
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4732-133-0x00000000001F0000-0x00000000001F9000-memory.dmp family_smokeloader behavioral2/memory/1360-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1360-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1360-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3420-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3420-146-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2492 suhfihc 3420 suhfihc - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4732 set thread context of 1360 4732 file.exe 81 PID 2492 set thread context of 3420 2492 suhfihc 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 suhfihc Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI suhfihc Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI suhfihc 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 1360 file.exe 1360 file.exe 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found 740 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 740 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 1360 file.exe 3420 suhfihc - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 740 Process not Found Token: SeCreatePagefilePrivilege 740 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4732 wrote to memory of 1360 4732 file.exe 81 PID 4732 wrote to memory of 1360 4732 file.exe 81 PID 4732 wrote to memory of 1360 4732 file.exe 81 PID 4732 wrote to memory of 1360 4732 file.exe 81 PID 4732 wrote to memory of 1360 4732 file.exe 81 PID 4732 wrote to memory of 1360 4732 file.exe 81 PID 2492 wrote to memory of 3420 2492 suhfihc 90 PID 2492 wrote to memory of 3420 2492 suhfihc 90 PID 2492 wrote to memory of 3420 2492 suhfihc 90 PID 2492 wrote to memory of 3420 2492 suhfihc 90 PID 2492 wrote to memory of 3420 2492 suhfihc 90 PID 2492 wrote to memory of 3420 2492 suhfihc 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:4732 -
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:1360
-
-
C:\Users\Admin\AppData\Roaming\suhfihcC:\Users\Admin\AppData\Roaming\suhfihc1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Users\Admin\AppData\Roaming\suhfihcC:\Users\Admin\AppData\Roaming\suhfihc2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3420
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\suhfihc
- Size 214KB
- SHA256 af486b622b72d3e10ba04fac48af78e03b670b2e3b3264f076bb89df11dbf9d8
- MD5 a11ba3e9a909e7835f3b3b90162f0981
- SHA1 1da2f49196d08eb3bdc8dbf99a8530113fd9329e
- SHA512 08ab7b79424142524f667375b980671672fbe4825266c45904b6bce35537bb36a59af6128a84cfe4e8e75e849f64b3994c96921143275405f14acd25fd837a9e
- SSDEEP 6144:+hHyLiXk1o2fz3x2QV7mQ2gzGAa40M2b:+8skagz39NTKA
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\suhfihc
- Size 214KB
- SHA256 af486b622b72d3e10ba04fac48af78e03b670b2e3b3264f076bb89df11dbf9d8
- MD5 a11ba3e9a909e7835f3b3b90162f0981
- SHA1 1da2f49196d08eb3bdc8dbf99a8530113fd9329e
- SHA512 08ab7b79424142524f667375b980671672fbe4825266c45904b6bce35537bb36a59af6128a84cfe4e8e75e849f64b3994c96921143275405f14acd25fd837a9e
- SSDEEP 6144:+hHyLiXk1o2fz3x2QV7mQ2gzGAa40M2b:+8skagz39NTKA
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\suhfihc
- Size 214KB
- SHA256 af486b622b72d3e10ba04fac48af78e03b670b2e3b3264f076bb89df11dbf9d8
- MD5 a11ba3e9a909e7835f3b3b90162f0981
- SHA1 1da2f49196d08eb3bdc8dbf99a8530113fd9329e
- SHA512 08ab7b79424142524f667375b980671672fbe4825266c45904b6bce35537bb36a59af6128a84cfe4e8e75e849f64b3994c96921143275405f14acd25fd837a9e
- SSDEEP 6144:+hHyLiXk1o2fz3x2QV7mQ2gzGAa40M2b:+8skagz39NTKA
- MD5 SHA1 SHA512 SSDEEP