Analysis
-
max time kernel
132s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
11-01-2024 05:34
Static task
static1
Behavioral task
behavioral1
Sample
toolspub1(2).exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
toolspub1(2).exe
Resource
win10v2004-20231215-en
General
-
Target
toolspub1(2).exe
-
Size
198KB
-
MD5
ac27d06e4345f34cfa44e08a860d88f1
-
SHA1
c5575397ff27d7f3a22ed9e0537e060d33bb4890
-
SHA256
d47be58f4a767dcfe803a43a184158fdb7f0bbc379c4519e435540f9224c82dc
-
SHA512
8cae7d2d4208a68b74ad3bab556d4b6b459058fcc7e8b8a364fb4a2e0a1ee55ca43274e509a9f4da208ac6c072fc4d2d119e52cfc966538d737f9410441025d4
-
SSDEEP
3072:dE/htLJYeiJiiKDuSRpXxLNjwakyBvwyYR2QvBL2A:yTLJYeF9LXh7U+
Malware Config
Extracted
smokeloader
pub1
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
-
Modifies firewall policy service 2 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0" explorer.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile explorer.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" explorer.exe Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile explorer.exe -
SmokeLoader
Modular backdoor trojan in use since 2014.
-
Sets file execution options in registry 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\qe9q1oo37i1551g.exe 96D1.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\qe9q1oo37i1551g.exe\DisableExceptionChainValidation 96D1.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe explorer.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rstrui.exe\Debugger = "qbgq.exe" explorer.exe -
Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion explorer.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation 9D0C.exe -
Deletes itself 1 IoCs
pid Process 3412 Process not Found -
Executes dropped EXE 3 IoCs
pid Process 1316 96D1.exe 3372 9D0C.exe 3188 WindowsUpdater.exe -
Loads dropped DLL 2 IoCs
pid Process 3188 WindowsUpdater.exe 3188 WindowsUpdater.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\qe9q1oo37i1551g.exe\"" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\qe9q1oo37i1551g.exe" explorer.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 96D1.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
pid Process 1316 96D1.exe 3136 explorer.exe 3136 explorer.exe 3136 explorer.exe 3136 explorer.exe 3136 explorer.exe 3136 explorer.exe 3136 explorer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Program crash 2 IoCs
pid pid_target Process procid_target 712 1624 WerFault.exe 88 3832 3136 WerFault.exe 105 -
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 toolspub1(2).exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI toolspub1(2).exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI toolspub1(2).exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 96D1.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 96D1.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer explorer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS explorer.exe -
Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4\2500 = "3" explorer.exe -
Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main explorer.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1624 toolspub1(2).exe 1624 toolspub1(2).exe 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found 3412 Process not Found -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 1624 toolspub1(2).exe 1316 96D1.exe 1316 96D1.exe -
Suspicious use of AdjustPrivilegeToken 32 IoCs
description pid Process Token: SeShutdownPrivilege 3412 Process not Found Token: SeCreatePagefilePrivilege 3412 Process not Found Token: SeDebugPrivilege 1316 96D1.exe Token: SeRestorePrivilege 1316 96D1.exe Token: SeBackupPrivilege 1316 96D1.exe Token: SeLoadDriverPrivilege 1316 96D1.exe Token: SeCreatePagefilePrivilege 1316 96D1.exe Token: SeShutdownPrivilege 1316 96D1.exe Token: SeTakeOwnershipPrivilege 1316 96D1.exe Token: SeChangeNotifyPrivilege 1316 96D1.exe Token: SeCreateTokenPrivilege 1316 96D1.exe Token: SeMachineAccountPrivilege 1316 96D1.exe Token: SeSecurityPrivilege 1316 96D1.exe Token: SeAssignPrimaryTokenPrivilege 1316 96D1.exe Token: SeCreateGlobalPrivilege 1316 96D1.exe Token: 33 1316 96D1.exe Token: SeDebugPrivilege 3136 explorer.exe Token: SeRestorePrivilege 3136 explorer.exe Token: SeBackupPrivilege 3136 explorer.exe Token: SeLoadDriverPrivilege 3136 explorer.exe Token: SeCreatePagefilePrivilege 3136 explorer.exe Token: SeShutdownPrivilege 3136 explorer.exe Token: SeTakeOwnershipPrivilege 3136 explorer.exe Token: SeChangeNotifyPrivilege 3136 explorer.exe Token: SeCreateTokenPrivilege 3136 explorer.exe Token: SeMachineAccountPrivilege 3136 explorer.exe Token: SeSecurityPrivilege 3136 explorer.exe Token: SeAssignPrimaryTokenPrivilege 3136 explorer.exe Token: SeCreateGlobalPrivilege 3136 explorer.exe Token: 33 3136 explorer.exe Token: SeShutdownPrivilege 3412 Process not Found Token: SeCreatePagefilePrivilege 3412 Process not Found -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3412 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3412 wrote to memory of 1316 3412 Process not Found 104 PID 3412 wrote to memory of 1316 3412 Process not Found 104 PID 3412 wrote to memory of 1316 3412 Process not Found 104 PID 1316 wrote to memory of 3136 1316 96D1.exe 105 PID 1316 wrote to memory of 3136 1316 96D1.exe 105 PID 1316 wrote to memory of 3136 1316 96D1.exe 105 PID 3412 wrote to memory of 3372 3412 Process not Found 106 PID 3412 wrote to memory of 3372 3412 Process not Found 106 PID 3412 wrote to memory of 3372 3412 Process not Found 106 PID 3372 wrote to memory of 3188 3372 9D0C.exe 107 PID 3372 wrote to memory of 3188 3372 9D0C.exe 107 PID 3372 wrote to memory of 3188 3372 9D0C.exe 107 -
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
-
C:\Users\Admin\AppData\Local\Temp\toolspub1(2).exe"C:\Users\Admin\AppData\Local\Temp\toolspub1(2).exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1624 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1624 -s 3682⤵
- Program crash
PID:712
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1624 -ip 16241⤵PID:3856
-
C:\Users\Admin\AppData\Local\Temp\96D1.exeC:\Users\Admin\AppData\Local\Temp\96D1.exe1⤵
- Sets file execution options in registry
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1316 -
C:\Windows\SysWOW64\explorer.exeC:\Windows\SysWOW64\explorer.exe2⤵
- Modifies firewall policy service
- Sets file execution options in registry
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Enumerates system info in registry
- Modifies Internet Explorer Protected Mode
- Modifies Internet Explorer Protected Mode Banner
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
PID:3136 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3136 -s 11083⤵
- Program crash
PID:3832
-
-
-
C:\Users\Admin\AppData\Local\Temp\9D0C.exeC:\Users\Admin\AppData\Local\Temp\9D0C.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3372 -
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:3188
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 3136 -ip 31361⤵PID:976
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
360KB
MD580c413180b6bd0dd664adc4e0665b494
SHA1e791e4a3391fc6b7bcb58399cd4fa3c52a06b940
SHA2566d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880
SHA512347f4ae6f308b37d055a6177478e45ab3838d7020abed70c7aa138d2c3771e709de204da8550aebdcaa6139d869dc7328cc7e645c4dd48d1066f9ad70225644a