Analysis
- max time kernel
150s - max time network
126s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
01/01/2023, 06:59
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 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 239KB
- Sample230101-hr3bdsbc62
- SHA256 054f347ab633e3bf0e5fbe1d232dbb061abc3a9e75f705055217618b2ecc2ccb
- MD5 c306610ddf9de71aea5684884ab5ee06
- SHA1 c86d39dce7bcca7d67afb2e44346c22b30557e8f
- SHA512 712c4c58a84ff9f099196e9cdc4fac701e684bf602ca35eda354f3c251e3a8b41d74e9eb9c0cedb8fa185f8117b6dbf4ff477d80faa647317aa7c78bdb4baf08
- SSDEEP 3072:yXR042LPBgKswW75o0AZq5E2x0pHSEzqIvLQmqYRq27hZY:y8LTswz0AZq5EZkuPFHZY
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/3552-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3192-135-0x00000000005F0000-0x00000000005F9000-memory.dmp family_smokeloader behavioral2/memory/3552-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3552-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1140-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1140-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 4992 girhadd 1140 girhadd - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3192 set thread context of 3552 3192 file.exe 82 PID 4992 set thread context of 1140 4992 girhadd 91 - 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 girhadd Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI girhadd 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 girhadd - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3552 file.exe 3552 file.exe 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found 512 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 512 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 3552 file.exe 1140 girhadd - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 512 Process not Found Token: SeCreatePagefilePrivilege 512 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3192 wrote to memory of 3552 3192 file.exe 82 PID 3192 wrote to memory of 3552 3192 file.exe 82 PID 3192 wrote to memory of 3552 3192 file.exe 82 PID 3192 wrote to memory of 3552 3192 file.exe 82 PID 3192 wrote to memory of 3552 3192 file.exe 82 PID 3192 wrote to memory of 3552 3192 file.exe 82 PID 4992 wrote to memory of 1140 4992 girhadd 91 PID 4992 wrote to memory of 1140 4992 girhadd 91 PID 4992 wrote to memory of 1140 4992 girhadd 91 PID 4992 wrote to memory of 1140 4992 girhadd 91 PID 4992 wrote to memory of 1140 4992 girhadd 91 PID 4992 wrote to memory of 1140 4992 girhadd 91
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:3192 -
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:3552
-
-
C:\Users\Admin\AppData\Roaming\girhaddC:\Users\Admin\AppData\Roaming\girhadd1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4992 -
C:\Users\Admin\AppData\Roaming\girhaddC:\Users\Admin\AppData\Roaming\girhadd2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:1140
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\girhadd
- Size 239KB
- SHA256 054f347ab633e3bf0e5fbe1d232dbb061abc3a9e75f705055217618b2ecc2ccb
- MD5 c306610ddf9de71aea5684884ab5ee06
- SHA1 c86d39dce7bcca7d67afb2e44346c22b30557e8f
- SHA512 712c4c58a84ff9f099196e9cdc4fac701e684bf602ca35eda354f3c251e3a8b41d74e9eb9c0cedb8fa185f8117b6dbf4ff477d80faa647317aa7c78bdb4baf08
- SSDEEP 3072:yXR042LPBgKswW75o0AZq5E2x0pHSEzqIvLQmqYRq27hZY:y8LTswz0AZq5EZkuPFHZY
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\girhadd
- Size 239KB
- SHA256 054f347ab633e3bf0e5fbe1d232dbb061abc3a9e75f705055217618b2ecc2ccb
- MD5 c306610ddf9de71aea5684884ab5ee06
- SHA1 c86d39dce7bcca7d67afb2e44346c22b30557e8f
- SHA512 712c4c58a84ff9f099196e9cdc4fac701e684bf602ca35eda354f3c251e3a8b41d74e9eb9c0cedb8fa185f8117b6dbf4ff477d80faa647317aa7c78bdb4baf08
- SSDEEP 3072:yXR042LPBgKswW75o0AZq5E2x0pHSEzqIvLQmqYRq27hZY:y8LTswz0AZq5EZkuPFHZY
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\girhadd
- Size 239KB
- SHA256 054f347ab633e3bf0e5fbe1d232dbb061abc3a9e75f705055217618b2ecc2ccb
- MD5 c306610ddf9de71aea5684884ab5ee06
- SHA1 c86d39dce7bcca7d67afb2e44346c22b30557e8f
- SHA512 712c4c58a84ff9f099196e9cdc4fac701e684bf602ca35eda354f3c251e3a8b41d74e9eb9c0cedb8fa185f8117b6dbf4ff477d80faa647317aa7c78bdb4baf08
- SSDEEP 3072:yXR042LPBgKswW75o0AZq5E2x0pHSEzqIvLQmqYRq27hZY:y8LTswz0AZq5EZkuPFHZY
- MD5 SHA1 SHA512 SSDEEP