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
18/01/2023, 04:31
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
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
- Target file.exe
- Size 271KB
- Sample230118-e5dneahf84
- SHA256 2bfa2890945c9a7a971c2a4dd19d4eab8a57b296541652c46d60fd3f51fa7247
- MD5 acd77b83925f2a287dabb01316ad0961
- SHA1 d910fc9511de8de2ce595757ae6a75a8b4563152
- SHA512 6c07696bc5ef24ddb77a51280b31b33af82ef185f5c9b8d11e5a881c9b36f86f7a89d832fff85b54db60651625bbce66ddee021d7f5358a2265efd81318fcddf
- SSDEEP 3072:zX3LR91ibe6953G1HnFB56E+ZpxJ1q9d6wpIt4qndE8SUlutGm:rN9v6HGN9N+Lxfy9GLdKt
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/5116-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4992-135-0x00000000048E0000-0x00000000048E9000-memory.dmp family_smokeloader behavioral2/memory/5116-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/5116-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4992 set thread context of 5116 4992 file.exe 79 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI file.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5116 file.exe 5116 file.exe 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found 380 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 380 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 5116 file.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4992 wrote to memory of 5116 4992 file.exe 79 PID 4992 wrote to memory of 5116 4992 file.exe 79 PID 4992 wrote to memory of 5116 4992 file.exe 79 PID 4992 wrote to memory of 5116 4992 file.exe 79 PID 4992 wrote to memory of 5116 4992 file.exe 79 PID 4992 wrote to memory of 5116 4992 file.exe 79
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:4992 -
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:5116
-