Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
25/01/2023, 17:38
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 324KB
- Sample230125-v7prfshc46
- SHA256 f665feace3274a8d0f20b01af94ccc09ff114de5f8da6f4b32b08cdf86a70a43
- MD5 3a08ad9e7276b2996c28f9f57ec08f2d
- SHA1 30f30ba74de4593c1b4e0414fd612cc8b144ff90
- SHA512 d67b6f4f41d33d61ead1189dd13d85dd3075a383530a8230ea4096e88e9cd3545957451b5861ab617a9f8e06cd0b6d61fd741d1d385448209417cee4d5c86ec6
- SSDEEP 6144:kjZLmln7cuzqfiejX19+Fwe0+MOKXkex6yOUTn:k96nHzq66qrWwAUUTn
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/3088-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4856-135-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader behavioral2/memory/3088-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3088-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/628-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/628-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 620 bijfduf 628 bijfduf - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4856 set thread context of 3088 4856 file.exe 82 PID 620 set thread context of 628 620 bijfduf 93 - 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 bijfduf Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bijfduf Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI bijfduf 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 3088 file.exe 3088 file.exe 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found 2180 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2180 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3088 file.exe 628 bijfduf - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2180 Process not Found Token: SeCreatePagefilePrivilege 2180 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4856 wrote to memory of 3088 4856 file.exe 82 PID 4856 wrote to memory of 3088 4856 file.exe 82 PID 4856 wrote to memory of 3088 4856 file.exe 82 PID 4856 wrote to memory of 3088 4856 file.exe 82 PID 4856 wrote to memory of 3088 4856 file.exe 82 PID 4856 wrote to memory of 3088 4856 file.exe 82 PID 620 wrote to memory of 628 620 bijfduf 93 PID 620 wrote to memory of 628 620 bijfduf 93 PID 620 wrote to memory of 628 620 bijfduf 93 PID 620 wrote to memory of 628 620 bijfduf 93 PID 620 wrote to memory of 628 620 bijfduf 93 PID 620 wrote to memory of 628 620 bijfduf 93
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:4856 -
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:3088
-
-
C:\Users\Admin\AppData\Roaming\bijfdufC:\Users\Admin\AppData\Roaming\bijfduf1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:620 -
C:\Users\Admin\AppData\Roaming\bijfdufC:\Users\Admin\AppData\Roaming\bijfduf2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:628
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\bijfduf
- Size 324KB
- SHA256 f665feace3274a8d0f20b01af94ccc09ff114de5f8da6f4b32b08cdf86a70a43
- MD5 3a08ad9e7276b2996c28f9f57ec08f2d
- SHA1 30f30ba74de4593c1b4e0414fd612cc8b144ff90
- SHA512 d67b6f4f41d33d61ead1189dd13d85dd3075a383530a8230ea4096e88e9cd3545957451b5861ab617a9f8e06cd0b6d61fd741d1d385448209417cee4d5c86ec6
- SSDEEP 6144:kjZLmln7cuzqfiejX19+Fwe0+MOKXkex6yOUTn:k96nHzq66qrWwAUUTn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\bijfduf
- Size 324KB
- SHA256 f665feace3274a8d0f20b01af94ccc09ff114de5f8da6f4b32b08cdf86a70a43
- MD5 3a08ad9e7276b2996c28f9f57ec08f2d
- SHA1 30f30ba74de4593c1b4e0414fd612cc8b144ff90
- SHA512 d67b6f4f41d33d61ead1189dd13d85dd3075a383530a8230ea4096e88e9cd3545957451b5861ab617a9f8e06cd0b6d61fd741d1d385448209417cee4d5c86ec6
- SSDEEP 6144:kjZLmln7cuzqfiejX19+Fwe0+MOKXkex6yOUTn:k96nHzq66qrWwAUUTn
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\bijfduf
- Size 324KB
- SHA256 f665feace3274a8d0f20b01af94ccc09ff114de5f8da6f4b32b08cdf86a70a43
- MD5 3a08ad9e7276b2996c28f9f57ec08f2d
- SHA1 30f30ba74de4593c1b4e0414fd612cc8b144ff90
- SHA512 d67b6f4f41d33d61ead1189dd13d85dd3075a383530a8230ea4096e88e9cd3545957451b5861ab617a9f8e06cd0b6d61fd741d1d385448209417cee4d5c86ec6
- SSDEEP 6144:kjZLmln7cuzqfiejX19+Fwe0+MOKXkex6yOUTn:k96nHzq66qrWwAUUTn
- MD5 SHA1 SHA512 SSDEEP