Analysis
- max time kernel
150s - max time network
139s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
25/12/2022, 10:10
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
windows7-x64
8 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 221KB
- Sample221225-l7cx8aee31
- SHA256 b8e04892b1115677a4ae47a0dc3c981d1dea93041c14eab7dee1dcbeeb93cd23
- MD5 66be86586e83d6501d51de5b7fdb0f2f
- SHA1 95761b3b652a6b7117551e5bdd9a8a9f04d96dd0
- SHA512 b7d201497c36b65a1845b0caa2dcc237069b6b12fe22e9877a8a0f257fb4c6fc3614f49a7c1177d1c15a23aa41b4a73c04a0cfad30d2b43be1d318f29ebbbbf2
- SSDEEP 6144:4LhRezK6um7f1KUshAnKl3KSJ/TJmGymI:4++6um7fcUshAc3KSVTwm
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4408-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1600-135-0x00000000005B0000-0x00000000005B9000-memory.dmp family_smokeloader behavioral2/memory/4408-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4408-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1600 set thread context of 4408 1600 file.exe 81 - 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 4408 file.exe 4408 file.exe 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found 2532 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2532 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4408 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1600 wrote to memory of 4408 1600 file.exe 81 PID 1600 wrote to memory of 4408 1600 file.exe 81 PID 1600 wrote to memory of 4408 1600 file.exe 81 PID 1600 wrote to memory of 4408 1600 file.exe 81 PID 1600 wrote to memory of 4408 1600 file.exe 81 PID 1600 wrote to memory of 4408 1600 file.exe 81
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:1600 -
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:4408
-