Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
22/01/2023, 00:58
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
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 196KB
- Sample230122-bbgw7agd7x
- SHA256 0ec90e8462293ffd7049f9e5d6488beb030d9ece929d13178f83745c48643d76
- MD5 07511d6893202fb03254305dde4eb7ce
- SHA1 0160e2c5b3f1e2b20e339c6f026b80594347f1fb
- SHA512 439f272f5e8dcc0d1dab3a891ff0a27027469d27ee1d21c1838c99baf21644c00c0c3f6036317078cb1d68d6b9c7ce93b1fda711a7bb7137236f9c7dd6481c97
- SSDEEP 3072:DBN4X3IJ+fNa7vLVTWEOe52GhWTalbh7dwSlMzLh0Gz8oSYjmo:NmZajLVSEOVGGqFdwSlMnVz8RS
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4860-133-0x0000000002D30000-0x0000000002D39000-memory.dmp family_smokeloader behavioral2/memory/2512-135-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2512-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2512-138-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3764-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3764-146-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 2744 tfswifa 3764 tfswifa - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4860 set thread context of 2512 4860 file.exe 81 PID 2744 set thread context of 3764 2744 tfswifa 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 tfswifa Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tfswifa Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI tfswifa 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 2512 file.exe 2512 file.exe 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found 764 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 764 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 2512 file.exe 3764 tfswifa - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 764 Process not Found Token: SeCreatePagefilePrivilege 764 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 4860 wrote to memory of 2512 4860 file.exe 81 PID 4860 wrote to memory of 2512 4860 file.exe 81 PID 4860 wrote to memory of 2512 4860 file.exe 81 PID 4860 wrote to memory of 2512 4860 file.exe 81 PID 4860 wrote to memory of 2512 4860 file.exe 81 PID 4860 wrote to memory of 2512 4860 file.exe 81 PID 2744 wrote to memory of 3764 2744 tfswifa 90 PID 2744 wrote to memory of 3764 2744 tfswifa 90 PID 2744 wrote to memory of 3764 2744 tfswifa 90 PID 2744 wrote to memory of 3764 2744 tfswifa 90 PID 2744 wrote to memory of 3764 2744 tfswifa 90 PID 2744 wrote to memory of 3764 2744 tfswifa 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:4860 -
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:2512
-
-
C:\Users\Admin\AppData\Roaming\tfswifaC:\Users\Admin\AppData\Roaming\tfswifa1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Users\Admin\AppData\Roaming\tfswifaC:\Users\Admin\AppData\Roaming\tfswifa2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:3764
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\tfswifa
- Size 196KB
- SHA256 0ec90e8462293ffd7049f9e5d6488beb030d9ece929d13178f83745c48643d76
- MD5 07511d6893202fb03254305dde4eb7ce
- SHA1 0160e2c5b3f1e2b20e339c6f026b80594347f1fb
- SHA512 439f272f5e8dcc0d1dab3a891ff0a27027469d27ee1d21c1838c99baf21644c00c0c3f6036317078cb1d68d6b9c7ce93b1fda711a7bb7137236f9c7dd6481c97
- SSDEEP 3072:DBN4X3IJ+fNa7vLVTWEOe52GhWTalbh7dwSlMzLh0Gz8oSYjmo:NmZajLVSEOVGGqFdwSlMnVz8RS
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\tfswifa
- Size 196KB
- SHA256 0ec90e8462293ffd7049f9e5d6488beb030d9ece929d13178f83745c48643d76
- MD5 07511d6893202fb03254305dde4eb7ce
- SHA1 0160e2c5b3f1e2b20e339c6f026b80594347f1fb
- SHA512 439f272f5e8dcc0d1dab3a891ff0a27027469d27ee1d21c1838c99baf21644c00c0c3f6036317078cb1d68d6b9c7ce93b1fda711a7bb7137236f9c7dd6481c97
- SSDEEP 3072:DBN4X3IJ+fNa7vLVTWEOe52GhWTalbh7dwSlMzLh0Gz8oSYjmo:NmZajLVSEOVGGqFdwSlMnVz8RS
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\tfswifa
- Size 196KB
- SHA256 0ec90e8462293ffd7049f9e5d6488beb030d9ece929d13178f83745c48643d76
- MD5 07511d6893202fb03254305dde4eb7ce
- SHA1 0160e2c5b3f1e2b20e339c6f026b80594347f1fb
- SHA512 439f272f5e8dcc0d1dab3a891ff0a27027469d27ee1d21c1838c99baf21644c00c0c3f6036317078cb1d68d6b9c7ce93b1fda711a7bb7137236f9c7dd6481c97
- SSDEEP 3072:DBN4X3IJ+fNa7vLVTWEOe52GhWTalbh7dwSlMzLh0Gz8oSYjmo:NmZajLVSEOVGGqFdwSlMnVz8RS
- MD5 SHA1 SHA512 SSDEEP