Analysis
- max time kernel
150s - max time network
107s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
06/09/2022, 22:48
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
win10v2004-20220901-en
windows10-2004-x64
9 signatures
150 seconds
General
- Target file.exe
- Size 259KB
- Sample220906-2q313sfhap
- SHA256 268eea29014e60deaab3b478eac47a92a3984cb60686aa808e01a095f25b9781
- MD5 1b7ee767037801fa75f60080df1f5b3f
- SHA1 8d0c42f11d9beab19c878485669d06eef8482806
- SHA512 798745ac0d5f8f9253caac9a78d8ee2c5fea15097416fe570e85a2199b6939c69f6e8e3eedcc3d2081a5d12bcc2418f54147f18e97a20c6f26ecc011e0a98556
- SSDEEP 6144:mW5pWCWSDUVB7AfSTbNnJ5i5p4VeWEZTGMAMZ:mW7WS4ncfSTbNnJYpNZHZ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/740-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4824-135-0x00000000001C0000-0x00000000001C9000-memory.dmp family_smokeloader behavioral2/memory/740-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/740-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 1 IoCs
pid Process 2244 esaijrt - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4824 set thread context of 740 4824 file.exe 85 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 740 file.exe 740 file.exe 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found 3024 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3024 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 740 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4824 wrote to memory of 740 4824 file.exe 85 PID 4824 wrote to memory of 740 4824 file.exe 85 PID 4824 wrote to memory of 740 4824 file.exe 85 PID 4824 wrote to memory of 740 4824 file.exe 85 PID 4824 wrote to memory of 740 4824 file.exe 85 PID 4824 wrote to memory of 740 4824 file.exe 85
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:4824 -
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:740
-
-
C:\Users\Admin\AppData\Roaming\esaijrtC:\Users\Admin\AppData\Roaming\esaijrt1⤵
- Executes dropped EXE
PID:2244
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\esaijrt
- Size 259KB
- SHA256 268eea29014e60deaab3b478eac47a92a3984cb60686aa808e01a095f25b9781
- MD5 1b7ee767037801fa75f60080df1f5b3f
- SHA1 8d0c42f11d9beab19c878485669d06eef8482806
- SHA512 798745ac0d5f8f9253caac9a78d8ee2c5fea15097416fe570e85a2199b6939c69f6e8e3eedcc3d2081a5d12bcc2418f54147f18e97a20c6f26ecc011e0a98556
- SSDEEP 6144:mW5pWCWSDUVB7AfSTbNnJ5i5p4VeWEZTGMAMZ:mW7WS4ncfSTbNnJYpNZHZ
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\esaijrt
- Size 259KB
- SHA256 268eea29014e60deaab3b478eac47a92a3984cb60686aa808e01a095f25b9781
- MD5 1b7ee767037801fa75f60080df1f5b3f
- SHA1 8d0c42f11d9beab19c878485669d06eef8482806
- SHA512 798745ac0d5f8f9253caac9a78d8ee2c5fea15097416fe570e85a2199b6939c69f6e8e3eedcc3d2081a5d12bcc2418f54147f18e97a20c6f26ecc011e0a98556
- SSDEEP 6144:mW5pWCWSDUVB7AfSTbNnJ5i5p4VeWEZTGMAMZ:mW7WS4ncfSTbNnJYpNZHZ
- MD5 SHA1 SHA512 SSDEEP