Analysis
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max time kernel
23s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
07/01/2024, 19:36
Static task
static1
Behavioral task
behavioral1
Sample
f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe
Resource
win10v2004-20231215-en
General
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Target
f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe
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Size
167KB
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MD5
e22cb3768b8f1f0bd6a8334fe9480230
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SHA1
8330fbc04aec9f431b7b7e78bb9cc27dadc1d07a
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SHA256
f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938d
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SHA512
129e2fa45cbe86d5095e2729a941af32cbfa92f64a4cd301cdc73d7963b8a8b69616f21350efec22b043c127da0411aad13efe3b9277f759e31530bf3dc04d40
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SSDEEP
3072:I70460vVgQa7NLfIMCSBnp8iqXzNY4LHUegh2cp:0Fa7NLfIMCSB2NzSCO5
Malware Config
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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SmokeLoader
Modular backdoor trojan in use since 2014.
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Deletes itself 1 IoCs
pid Process 3428 Process not Found -
Executes dropped EXE 1 IoCs
pid Process 4880 9C9E.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 9C9E.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4880 9C9E.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4456 set thread context of 3096 4456 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 23 -
Program crash 2 IoCs
pid pid_target Process procid_target 3472 3096 WerFault.exe 23 4420 1444 WerFault.exe 106 -
Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 9C9E.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 9C9E.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3096 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 3096 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found 3428 Process not Found -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3096 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe -
Suspicious use of AdjustPrivilegeToken 16 IoCs
description pid Process Token: SeShutdownPrivilege 3428 Process not Found Token: SeCreatePagefilePrivilege 3428 Process not Found Token: SeDebugPrivilege 4880 9C9E.exe Token: SeRestorePrivilege 4880 9C9E.exe Token: SeBackupPrivilege 4880 9C9E.exe Token: SeLoadDriverPrivilege 4880 9C9E.exe Token: SeCreatePagefilePrivilege 4880 9C9E.exe Token: SeShutdownPrivilege 4880 9C9E.exe Token: SeTakeOwnershipPrivilege 4880 9C9E.exe Token: SeChangeNotifyPrivilege 4880 9C9E.exe Token: SeCreateTokenPrivilege 4880 9C9E.exe Token: SeMachineAccountPrivilege 4880 9C9E.exe Token: SeSecurityPrivilege 4880 9C9E.exe Token: SeAssignPrimaryTokenPrivilege 4880 9C9E.exe Token: SeCreateGlobalPrivilege 4880 9C9E.exe Token: 33 4880 9C9E.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 4456 wrote to memory of 3096 4456 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 23 PID 4456 wrote to memory of 3096 4456 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 23 PID 4456 wrote to memory of 3096 4456 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 23 PID 4456 wrote to memory of 3096 4456 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 23 PID 4456 wrote to memory of 3096 4456 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 23 PID 4456 wrote to memory of 3096 4456 f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe 23 PID 3428 wrote to memory of 4880 3428 Process not Found 105 PID 3428 wrote to memory of 4880 3428 Process not Found 105 PID 3428 wrote to memory of 4880 3428 Process not Found 105 -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe"C:\Users\Admin\AppData\Local\Temp\f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4456 -
C:\Users\Admin\AppData\Local\Temp\f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe"C:\Users\Admin\AppData\Local\Temp\f92523fa104575e0605f90ce4a75a95204bc8af656c27a04aa26782cb64d938dexe.exe"2⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:3096 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3096 -s 3283⤵
- Program crash
PID:3472
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3096 -ip 30961⤵PID:2588
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C:\Users\Admin\AppData\Local\Temp\9C9E.exeC:\Users\Admin\AppData\Local\Temp\9C9E.exe1⤵
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
PID:4880 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe2⤵PID:1444
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1444 -s 10683⤵
- Program crash
PID:4420
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C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"1⤵PID:4444
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C:\Users\Admin\AppData\Local\Temp\A1A0.exeC:\Users\Admin\AppData\Local\Temp\A1A0.exe1⤵PID:4092
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1444 -ip 14441⤵PID:4604