Analysis
- max time kernel
151s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
07/01/2023, 23:07
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 353KB
- Sample230107-23yxwsfa39
- SHA256 8aa1218e9341edbed7e6f02347bc39a97bee6bb71754784c6d53af8ae15910b2
- MD5 25fa793ae4aefc2a97fa9637a09a0b6a
- SHA1 6a90faa5b0d0506010e6b73ba777ac65844794f4
- SHA512 77d2e6956909500ced2a0de3d90420c7cace435db8a8ed762242c36280006c587653545c377c172cbd66eb3a56fdec5e13eb4c87f7fd5067f2485fee7b0313a3
- SSDEEP 6144:WimxGn+jXORL6u0xzZmYcZra0IgYUNseTrjMS/spORi6Wb:WimxGnweR2u0rU/55soEkRi
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/3220-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4832-135-0x0000000003370000-0x0000000003379000-memory.dmp family_smokeloader behavioral2/memory/3220-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3220-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4832 set thread context of 3220 4832 file.exe 80 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process 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 3220 file.exe 3220 file.exe 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found 2620 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2620 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3220 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4832 wrote to memory of 3220 4832 file.exe 80 PID 4832 wrote to memory of 3220 4832 file.exe 80 PID 4832 wrote to memory of 3220 4832 file.exe 80 PID 4832 wrote to memory of 3220 4832 file.exe 80 PID 4832 wrote to memory of 3220 4832 file.exe 80 PID 4832 wrote to memory of 3220 4832 file.exe 80
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:4832 -
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:3220
-