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
22/12/2022, 23:27
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
9 signatures
150 seconds
General
- Target file.exe
- Size 316KB
- Sample221222-3fd5msfd98
- SHA256 32d2335c53ea268f7bdec141448e64191c7b2a75943176ae1c8c89931d2f267c
- MD5 7129aeb9e9e6b74a4f373305b79d1ea5
- SHA1 28a79a9adcb483166930202f9b8a4722b409917a
- SHA512 6ab0b167ec9ca32da5f785c950473e5be9cee256bfd6650fbcd830c579e335d10878e64fed0080d00b485acd5ac8e812dc27905b1307fd9dcc4b2bcbfabe8833
- SSDEEP 6144:lVLXhT0QVwB7xS2ZmEznUwRR0cSpQTtyzsduHNIv:lVjhTTwB7Q4mEznUwRR0TCtyYduHNI
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 4 IoCs
resource yara_rule behavioral2/memory/4944-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/3416-135-0x00000000006F0000-0x00000000006F9000-memory.dmp family_smokeloader behavioral2/memory/4944-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4944-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3416 set thread context of 4944 3416 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 4944 file.exe 4944 file.exe 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found 2700 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2700 Process not Found - Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4944 file.exe - Suspicious use of AdjustPrivilegeToken 12 IoCs
description pid Process Token: SeShutdownPrivilege 2700 Process not Found Token: SeCreatePagefilePrivilege 2700 Process not Found Token: SeShutdownPrivilege 2700 Process not Found Token: SeCreatePagefilePrivilege 2700 Process not Found Token: SeShutdownPrivilege 2700 Process not Found Token: SeCreatePagefilePrivilege 2700 Process not Found Token: SeShutdownPrivilege 2700 Process not Found Token: SeCreatePagefilePrivilege 2700 Process not Found Token: SeShutdownPrivilege 2700 Process not Found Token: SeCreatePagefilePrivilege 2700 Process not Found Token: SeShutdownPrivilege 2700 Process not Found Token: SeCreatePagefilePrivilege 2700 Process not Found - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3416 wrote to memory of 4944 3416 file.exe 81 PID 3416 wrote to memory of 4944 3416 file.exe 81 PID 3416 wrote to memory of 4944 3416 file.exe 81 PID 3416 wrote to memory of 4944 3416 file.exe 81 PID 3416 wrote to memory of 4944 3416 file.exe 81 PID 3416 wrote to memory of 4944 3416 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:3416 -
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:4944
-