Analysis
- max time kernel
150s - max time network
94s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system - submitted
26/12/2022, 16:28
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target file.exe
- Size 229KB
- Sample221226-tym1tsgc9w
- SHA256 0867564e29cd82ac704cfd76788eb93bb08898ea101f06b19f77fee27d0e1bc1
- MD5 3eef9058b0842b5d9737eacce8e7840c
- SHA1 162091fd14336e261fce1166127ccf2a9a4f4a72
- SHA512 b479d01072b1c53295d1cfff395389f5228d8e21e552ca22e7cc1316749cfc9111e7306d55f84b3287e3bb7b0e880695e0c60e2d56cf07d472276ee62b1570df
- SSDEEP 3072:UX4q0T9Lb85Kz5FiGikjD3ljdvljLpt/7Hf+V+Y700:xLbnlFiLkjD3lxpHbf+Vl7l
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detects Smokeloader packer 6 IoCs
resource yara_rule behavioral2/memory/4996-133-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/1336-135-0x0000000002190000-0x0000000002199000-memory.dmp family_smokeloader behavioral2/memory/4996-136-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4996-137-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4828-144-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader behavioral2/memory/4828-145-0x0000000000400000-0x0000000000409000-memory.dmp family_smokeloader - SmokeLoader
Modular backdoor trojan in use since 2014.
- Executes dropped EXE 2 IoCs
pid Process 1192 jigrbwu 4828 jigrbwu - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1336 set thread context of 4996 1336 file.exe 81 PID 1192 set thread context of 4828 1192 jigrbwu 90 - Checks SCSI registry key(s) 3 TTPs 6 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 jigrbwu Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI jigrbwu Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI jigrbwu 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 4996 file.exe 4996 file.exe 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found 2648 Process not Found - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2648 Process not Found - Suspicious behavior: MapViewOfSection 2 IoCs
pid Process 4996 file.exe 4828 jigrbwu - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeShutdownPrivilege 2648 Process not Found Token: SeCreatePagefilePrivilege 2648 Process not Found - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1336 wrote to memory of 4996 1336 file.exe 81 PID 1336 wrote to memory of 4996 1336 file.exe 81 PID 1336 wrote to memory of 4996 1336 file.exe 81 PID 1336 wrote to memory of 4996 1336 file.exe 81 PID 1336 wrote to memory of 4996 1336 file.exe 81 PID 1336 wrote to memory of 4996 1336 file.exe 81 PID 1192 wrote to memory of 4828 1192 jigrbwu 90 PID 1192 wrote to memory of 4828 1192 jigrbwu 90 PID 1192 wrote to memory of 4828 1192 jigrbwu 90 PID 1192 wrote to memory of 4828 1192 jigrbwu 90 PID 1192 wrote to memory of 4828 1192 jigrbwu 90 PID 1192 wrote to memory of 4828 1192 jigrbwu 90
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:1336 -
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:4996
-
-
C:\Users\Admin\AppData\Roaming\jigrbwuC:\Users\Admin\AppData\Roaming\jigrbwu1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1192 -
C:\Users\Admin\AppData\Roaming\jigrbwuC:\Users\Admin\AppData\Roaming\jigrbwu2⤵
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious behavior: MapViewOfSection
PID:4828
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\jigrbwu
- Size 229KB
- SHA256 0867564e29cd82ac704cfd76788eb93bb08898ea101f06b19f77fee27d0e1bc1
- MD5 3eef9058b0842b5d9737eacce8e7840c
- SHA1 162091fd14336e261fce1166127ccf2a9a4f4a72
- SHA512 b479d01072b1c53295d1cfff395389f5228d8e21e552ca22e7cc1316749cfc9111e7306d55f84b3287e3bb7b0e880695e0c60e2d56cf07d472276ee62b1570df
- SSDEEP 3072:UX4q0T9Lb85Kz5FiGikjD3ljdvljLpt/7Hf+V+Y700:xLbnlFiLkjD3lxpHbf+Vl7l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\jigrbwu
- Size 229KB
- SHA256 0867564e29cd82ac704cfd76788eb93bb08898ea101f06b19f77fee27d0e1bc1
- MD5 3eef9058b0842b5d9737eacce8e7840c
- SHA1 162091fd14336e261fce1166127ccf2a9a4f4a72
- SHA512 b479d01072b1c53295d1cfff395389f5228d8e21e552ca22e7cc1316749cfc9111e7306d55f84b3287e3bb7b0e880695e0c60e2d56cf07d472276ee62b1570df
- SSDEEP 3072:UX4q0T9Lb85Kz5FiGikjD3ljdvljLpt/7Hf+V+Y700:xLbnlFiLkjD3lxpHbf+Vl7l
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\jigrbwu
- Size 229KB
- SHA256 0867564e29cd82ac704cfd76788eb93bb08898ea101f06b19f77fee27d0e1bc1
- MD5 3eef9058b0842b5d9737eacce8e7840c
- SHA1 162091fd14336e261fce1166127ccf2a9a4f4a72
- SHA512 b479d01072b1c53295d1cfff395389f5228d8e21e552ca22e7cc1316749cfc9111e7306d55f84b3287e3bb7b0e880695e0c60e2d56cf07d472276ee62b1570df
- SSDEEP 3072:UX4q0T9Lb85Kz5FiGikjD3ljdvljLpt/7Hf+V+Y700:xLbnlFiLkjD3lxpHbf+Vl7l
- MD5 SHA1 SHA512 SSDEEP