Analysis
- max time kernel
150s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
17/02/2023, 13:38
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 185KB
- Sample230217-qxc8fsff48
- SHA256 57faee26a7adc215fe009520e2096e005a55a605047d5fa30f0e24faf2c9fd8f
- MD5 852dc3ce0ad1290aab2b5449af6cce50
- SHA1 db4ffaf3894b10d6a3dfa33f28c0482355d70ce2
- SHA512 5cc92f4686917555a26eac75bda67f095fcc93ba62c84ee239dca9e6b5877776fe4a9180a57a1771ce76040b3c001f1268055a0a74b051abff62d4676f7ce7b8
- SSDEEP 3072:O4VDtqr48xK1yDLOQWeOy2+H+74Rs9JC1H0+g+Db78U5:OA/WKgDK3bhv4S9JC1H0+g+Db78U
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4660-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/544-135-0x00000000005E0000-0x00000000005E9000-memory.dmp family_smokeloader behavioral2/memory/4660-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4660-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4620-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4620-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2976 vegreau 4620 vegreau - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 544 set thread context of 4660 544 file.exe 81 PID 2976 set thread context of 4620 2976 vegreau 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 enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI vegreau 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 vegreau Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI vegreau - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4660 file.exe 4660 file.exe 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found 2692 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2692 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4660 file.exe 4620 vegreau - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2692 Process not Found Token: SeCreatePagefilePrivilege 2692 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 544 wrote to memory of 4660 544 file.exe 81 PID 544 wrote to memory of 4660 544 file.exe 81 PID 544 wrote to memory of 4660 544 file.exe 81 PID 544 wrote to memory of 4660 544 file.exe 81 PID 544 wrote to memory of 4660 544 file.exe 81 PID 544 wrote to memory of 4660 544 file.exe 81 PID 2976 wrote to memory of 4620 2976 vegreau 90 PID 2976 wrote to memory of 4620 2976 vegreau 90 PID 2976 wrote to memory of 4620 2976 vegreau 90 PID 2976 wrote to memory of 4620 2976 vegreau 90 PID 2976 wrote to memory of 4620 2976 vegreau 90 PID 2976 wrote to memory of 4620 2976 vegreau 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:544 -
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:4660
-
-
C:\Users\Admin\AppData\Roaming\vegreauC:\Users\Admin\AppData\Roaming\vegreau1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2976 -
C:\Users\Admin\AppData\Roaming\vegreauC:\Users\Admin\AppData\Roaming\vegreau2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4620
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\vegreau
- Size 185KB
- SHA256 57faee26a7adc215fe009520e2096e005a55a605047d5fa30f0e24faf2c9fd8f
- MD5 852dc3ce0ad1290aab2b5449af6cce50
- SHA1 db4ffaf3894b10d6a3dfa33f28c0482355d70ce2
- SHA512 5cc92f4686917555a26eac75bda67f095fcc93ba62c84ee239dca9e6b5877776fe4a9180a57a1771ce76040b3c001f1268055a0a74b051abff62d4676f7ce7b8
- SSDEEP 3072:O4VDtqr48xK1yDLOQWeOy2+H+74Rs9JC1H0+g+Db78U5:OA/WKgDK3bhv4S9JC1H0+g+Db78U
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\vegreau
- Size 185KB
- SHA256 57faee26a7adc215fe009520e2096e005a55a605047d5fa30f0e24faf2c9fd8f
- MD5 852dc3ce0ad1290aab2b5449af6cce50
- SHA1 db4ffaf3894b10d6a3dfa33f28c0482355d70ce2
- SHA512 5cc92f4686917555a26eac75bda67f095fcc93ba62c84ee239dca9e6b5877776fe4a9180a57a1771ce76040b3c001f1268055a0a74b051abff62d4676f7ce7b8
- SSDEEP 3072:O4VDtqr48xK1yDLOQWeOy2+H+74Rs9JC1H0+g+Db78U5:OA/WKgDK3bhv4S9JC1H0+g+Db78U
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\vegreau
- Size 185KB
- SHA256 57faee26a7adc215fe009520e2096e005a55a605047d5fa30f0e24faf2c9fd8f
- MD5 852dc3ce0ad1290aab2b5449af6cce50
- SHA1 db4ffaf3894b10d6a3dfa33f28c0482355d70ce2
- SHA512 5cc92f4686917555a26eac75bda67f095fcc93ba62c84ee239dca9e6b5877776fe4a9180a57a1771ce76040b3c001f1268055a0a74b051abff62d4676f7ce7b8
- SSDEEP 3072:O4VDtqr48xK1yDLOQWeOy2+H+74Rs9JC1H0+g+Db78U5:OA/WKgDK3bhv4S9JC1H0+g+Db78U
- MD5 SHA1 SHA512 SSDEEP