Analysis
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max time kernel
152s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
13-01-2024 05:56
Static task
static1
Behavioral task
behavioral1
Sample
f5fb47c4fe365a3478323507e9f8dd7e.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
f5fb47c4fe365a3478323507e9f8dd7e.exe
Resource
win10v2004-20231215-en
General
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Target
f5fb47c4fe365a3478323507e9f8dd7e.exe
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Size
234KB
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MD5
f5fb47c4fe365a3478323507e9f8dd7e
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SHA1
8ef08c96a8ee01629cb531315f144b9abada8c2d
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SHA256
4677c4aba91d3ad1687bae284e80deae2ebe9dd4a23e5bc071fab312f02baa8f
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SHA512
ba3ebca465122a46ce5db8a6fd83a68e04efda1dbf1a786f4e915992aeed2e6fc45b73c234ef07f2b4727bb440b26bf2617d7af28ced602cd2e2b537c2e51bcd
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SSDEEP
3072:ORSupGanOMAuJi4k1KjHPpxGDo0ixVijrPz5Bafw3ER/I:OR3RAIx70MijrVBQI
Malware Config
Extracted
smokeloader
up3
Extracted
smokeloader
2020
http://host-file-host6.com/
http://host-host-file8.com/
Signatures
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Modifies firewall policy service 2 TTPs 4 IoCs
description ioc Process 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 Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\PublicProfile\EnableFirewall = "0" explorer.exe -
SmokeLoader
Modular backdoor trojan in use since 2014.
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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\gqga7g5gkog9.exe F6DE.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\gqga7g5gkog9.exe\DisableExceptionChainValidation F6DE.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 = "eugjgb.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation 111.exe -
Deletes itself 1 IoCs
pid Process 3480 Process not Found -
Executes dropped EXE 3 IoCs
pid Process 2912 F6DE.exe 4764 111.exe 996 WindowsUpdater.exe -
Loads dropped DLL 2 IoCs
pid Process 996 WindowsUpdater.exe 996 WindowsUpdater.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Updater = "\"C:\\ProgramData\\Java Updater\\gqga7g5gkog9.exe\"" explorer.exe Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Java Updater = "C:\\ProgramData\\Java Updater\\gqga7g5gkog9.exe" explorer.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA F6DE.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs
pid Process 2912 F6DE.exe 1464 explorer.exe 1464 explorer.exe 1464 explorer.exe 1464 explorer.exe 1464 explorer.exe 1464 explorer.exe 1464 explorer.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 3468 1464 WerFault.exe 104 -
NSIS installer 3 IoCs
resource yara_rule behavioral2/files/0x0004000000000745-20.dat nsis_installer_2 behavioral2/files/0x00040000000162a9-41.dat nsis_installer_1 behavioral2/files/0x00040000000162a9-41.dat nsis_installer_2 -
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 f5fb47c4fe365a3478323507e9f8dd7e.exe Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f5fb47c4fe365a3478323507e9f8dd7e.exe Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI f5fb47c4fe365a3478323507e9f8dd7e.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 opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 F6DE.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString F6DE.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString explorer.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS explorer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer explorer.exe -
Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3" explorer.exe Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1" explorer.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main explorer.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4292 f5fb47c4fe365a3478323507e9f8dd7e.exe 4292 f5fb47c4fe365a3478323507e9f8dd7e.exe 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found 3480 Process not Found -
Suspicious behavior: MapViewOfSection 3 IoCs
pid Process 4292 f5fb47c4fe365a3478323507e9f8dd7e.exe 2912 F6DE.exe 2912 F6DE.exe -
Suspicious use of AdjustPrivilegeToken 30 IoCs
description pid Process Token: SeDebugPrivilege 2912 F6DE.exe Token: SeRestorePrivilege 2912 F6DE.exe Token: SeBackupPrivilege 2912 F6DE.exe Token: SeLoadDriverPrivilege 2912 F6DE.exe Token: SeCreatePagefilePrivilege 2912 F6DE.exe Token: SeShutdownPrivilege 2912 F6DE.exe Token: SeTakeOwnershipPrivilege 2912 F6DE.exe Token: SeChangeNotifyPrivilege 2912 F6DE.exe Token: SeCreateTokenPrivilege 2912 F6DE.exe Token: SeMachineAccountPrivilege 2912 F6DE.exe Token: SeSecurityPrivilege 2912 F6DE.exe Token: SeAssignPrimaryTokenPrivilege 2912 F6DE.exe Token: SeCreateGlobalPrivilege 2912 F6DE.exe Token: 33 2912 F6DE.exe Token: SeDebugPrivilege 1464 explorer.exe Token: SeRestorePrivilege 1464 explorer.exe Token: SeBackupPrivilege 1464 explorer.exe Token: SeLoadDriverPrivilege 1464 explorer.exe Token: SeCreatePagefilePrivilege 1464 explorer.exe Token: SeShutdownPrivilege 1464 explorer.exe Token: SeTakeOwnershipPrivilege 1464 explorer.exe Token: SeChangeNotifyPrivilege 1464 explorer.exe Token: SeCreateTokenPrivilege 1464 explorer.exe Token: SeMachineAccountPrivilege 1464 explorer.exe Token: SeSecurityPrivilege 1464 explorer.exe Token: SeAssignPrimaryTokenPrivilege 1464 explorer.exe Token: SeCreateGlobalPrivilege 1464 explorer.exe Token: 33 1464 explorer.exe Token: SeShutdownPrivilege 3480 Process not Found Token: SeCreatePagefilePrivilege 3480 Process not Found -
Suspicious use of UnmapMainImage 1 IoCs
pid Process 3480 Process not Found -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3480 wrote to memory of 2912 3480 Process not Found 102 PID 3480 wrote to memory of 2912 3480 Process not Found 102 PID 3480 wrote to memory of 2912 3480 Process not Found 102 PID 3480 wrote to memory of 4764 3480 Process not Found 103 PID 3480 wrote to memory of 4764 3480 Process not Found 103 PID 3480 wrote to memory of 4764 3480 Process not Found 103 PID 2912 wrote to memory of 1464 2912 F6DE.exe 104 PID 2912 wrote to memory of 1464 2912 F6DE.exe 104 PID 2912 wrote to memory of 1464 2912 F6DE.exe 104 PID 4764 wrote to memory of 996 4764 111.exe 107 PID 4764 wrote to memory of 996 4764 111.exe 107 PID 4764 wrote to memory of 996 4764 111.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
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C:\Users\Admin\AppData\Local\Temp\f5fb47c4fe365a3478323507e9f8dd7e.exe"C:\Users\Admin\AppData\Local\Temp\f5fb47c4fe365a3478323507e9f8dd7e.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:4292
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C:\Users\Admin\AppData\Local\Temp\F6DE.exeC:\Users\Admin\AppData\Local\Temp\F6DE.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:2912 -
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:1464 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1464 -s 10883⤵
- Program crash
PID:3468
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C:\Users\Admin\AppData\Local\Temp\111.exeC:\Users\Admin\AppData\Local\Temp\111.exe1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4764 -
C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"C:\Users\Admin\AppData\Local\Temp\WindowsUpdater.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
PID:996
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1464 -ip 14641⤵PID:2772
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
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Downloads
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Filesize
5.6MB
MD5f7c6d870f0de20c40388b493d2b315d2
SHA11b25397776ae0481184f151ec3e608f3b65ac8e6
SHA2564e07a3356bb6ffaa23224884b2ec5d79b6f956acc186475adac89867c0d623d9
SHA5120619a22579ee70745034c547c53180d4319c3dc5db326dfecc275cd3b3025f354a3e6fac093a925611a5e0cca5ff9dbcfbfe246d376bb173829f332b670f5655
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Filesize
360KB
MD580c413180b6bd0dd664adc4e0665b494
SHA1e791e4a3391fc6b7bcb58399cd4fa3c52a06b940
SHA2566d99cec56614b6b8a23dfa84a50c6bbfde535411c6366ac2bcc20c9f5af62880
SHA512347f4ae6f308b37d055a6177478e45ab3838d7020abed70c7aa138d2c3771e709de204da8550aebdcaa6139d869dc7328cc7e645c4dd48d1066f9ad70225644a
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Filesize
2.2MB
MD50badb0e573d95db49ac23c11163d9386
SHA1d86dd20e4498ba5576272df07cd71dd9ed40bf8d
SHA2565ebb608342d1306743d1ab56bb587b00d7e14737f5af48be3fa738a98cf29668
SHA512a83d397fdcf2b749aac8f1db38a991b06a70c58d21c84d09cd8a732ee744287e7d7d58edeb817006b6ee245ed313993a3280aea32fd4c5a079b4f960ab35eff8
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Filesize
2.2MB
MD5bc94fe5f3a7d234dceefa5a25c109358
SHA1eefd19123cb554bd975d9848eff08f195c7794bb
SHA256fdbd693e2a9eab791967e78eef8e1a3423c63b570d6fc8ccd9367be931c779c4
SHA512650632899edc1bce009244cf228500c26df33c2036f774f60529c10bf7b277a49d3e635846097cf2d821a54e066a07f5f6ef2be055e1054e8c4a1a938fad9c69
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Filesize
12KB
MD5dd87a973e01c5d9f8e0fcc81a0af7c7a
SHA1c9206ced48d1e5bc648b1d0f54cccc18bf643a14
SHA2567fb0f8d452fefaac789986b933df050f3d3e4feb8a8d9944ada995f572dcdca1
SHA5124910b39b1a99622ac8b3c42f173bbe7035ac2f8d40c946468e7db7e2868a2da81ea94da453857f06f39957dd690c7f1ba498936a7aaa0039975e472376f92e8f