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
08/01/2023, 01:55
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 353KB
- Sample230108-cb476afh7z
- SHA256 55ca69f5598bcdc85128e58ace3e8cb7ca7b05444beb480a6d4c4a0f1b2fdff7
- MD5 840811a84d0e9ee604200d55e5c2b12d
- SHA1 50f30e67acc1de66ef7225090f8255a005464f96
- SHA512 dc9317dfddb3b00b065a22679aed5df0cbf52937f48af9eca9ecb9d57bcbc95900dd9bd6cea67aa11cfdc59e9361511e4cc7fcc16210ef81bf340a8593d78f5f
- SSDEEP 6144:x8mxGn+jXORL6u0xzZqqrVjLsBpcUjtx0MPOjMS/shH67tMi6Wb:x8mxGnweR2u0rqKLsBpFjb0MPyEhHqMi
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/2476-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1368-135-0x0000000003090000-0x0000000003099000-memory.dmp family_smokeloader behavioral2/memory/2476-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/2476-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1368 set thread context of 2476 1368 file.exe 82 - 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 2476 file.exe 2476 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 1 IoCs
pid Process 2476 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1368 wrote to memory of 2476 1368 file.exe 82 PID 1368 wrote to memory of 2476 1368 file.exe 82 PID 1368 wrote to memory of 2476 1368 file.exe 82 PID 1368 wrote to memory of 2476 1368 file.exe 82 PID 1368 wrote to memory of 2476 1368 file.exe 82 PID 1368 wrote to memory of 2476 1368 file.exe 82
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:1368 -
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:2476
-