Overview
overview
10Static
static
3tmpfile-ma...r3.exe
windows11-21h2-x64
8tmpfile-ma...rm.exe
windows11-21h2-x64
10tmpfile-ma...ir.exe
windows11-21h2-x64
10tmpfile-ma...32.exe
windows11-21h2-x64
10tmpfile-ma...63.exe
windows11-21h2-x64
3tmpfile-ma...64.exe
windows11-21h2-x64
10tmpfile-ma...ox.exe
windows11-21h2-x64
7tmpfile-ma...7I.exe
windows11-21h2-x64
1tmpfile-ma...8I.exe
windows11-21h2-x64
7Analysis
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max time kernel
150s -
max time network
94s -
platform
windows11-21h2_x64 -
resource
win11-20241007-en -
resource tags
arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system -
submitted
17-11-2024 17:23
Static task
static1
Behavioral task
behavioral1
Sample
tmpfile-main/0000000r00d000r3.exe
Resource
win11-20241007-en
Behavioral task
behavioral2
Sample
tmpfile-main/Exterm.exe
Resource
win11-20241007-en
Behavioral task
behavioral3
Sample
tmpfile-main/Gaming Chair.exe
Resource
win11-20241007-en
Behavioral task
behavioral4
Sample
tmpfile-main/Node32.exe
Resource
win11-20241007-en
Behavioral task
behavioral5
Sample
tmpfile-main/Node63.exe
Resource
win11-20241007-en
Behavioral task
behavioral6
Sample
tmpfile-main/Node64.exe
Resource
win11-20241007-en
Behavioral task
behavioral7
Sample
tmpfile-main/Sobfox.exe
Resource
win11-20241007-en
Behavioral task
behavioral8
Sample
tmpfile-main/stTfuo7I.exe
Resource
win11-20241007-en
Behavioral task
behavioral9
Sample
tmpfile-main/stTfuo8I.exe
Resource
win11-20241023-en
General
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Target
tmpfile-main/Exterm.exe
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Size
830KB
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MD5
4b1fba57411e2fb9756f44a84bd74b43
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SHA1
06305226e1d4e4fcca12d83d72dc8a4fe9f4d9ed
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SHA256
4001b4e8a309eb8949f827d0b3ef572c79c1b21d96aa4c35436b0930bea8eec1
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SHA512
ce491f3fcea8d270351825f0ac8e48994866d728db121b954c0fa2d16d7999d0f898c99b969f75521c5c827bc5437221e707f78e3fb68e70c8a6abd91775f113
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SSDEEP
24576:75bRMyb2OEpAoC0HJ0EWRVW4ICikaZo8M:NbRMyb5YP0ny4xiNZoB
Malware Config
Extracted
bdaejec
ddos.dnsnb8.net
Signatures
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Bdaejec family
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Detects Bdaejec Backdoor. 1 IoCs
Bdaejec is backdoor written in C++.
Processes:
resource yara_rule behavioral2/memory/2304-36-0x0000000000710000-0x0000000000719000-memory.dmp family_bdaejec_backdoor -
Processes:
resource yara_rule C:\Users\Admin\AppData\Local\Temp\OUsJaT.exe aspack_v212_v242 -
Executes dropped EXE 2 IoCs
Processes:
MontanaInject.exeOUsJaT.exepid process 5064 MontanaInject.exe 2304 OUsJaT.exe -
Drops file in Program Files directory 64 IoCs
Processes:
OUsJaT.exedescription ioc process File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_4.0.2.0_x64__8wekyb3d8bbwe\StickyNotesStub.exe OUsJaT.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ScreenSketch_11.2104.2.0_x64__8wekyb3d8bbwe\SnippingTool\SnippingTool.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javah.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javaws.exe OUsJaT.exe File opened for modification C:\Program Files\VideoLAN\VLC\uninstall.exe OUsJaT.exe File opened for modification C:\Program Files\Windows Mail\wab.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\unpack200.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe OUsJaT.exe File opened for modification C:\Program Files\7-Zip\7zG.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\keytool.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoia.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\tnameserv.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE OUsJaT.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe OUsJaT.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\pack200.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jjs.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jstat.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe OUsJaT.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.42251.0_x64__8wekyb3d8bbwe\AppInstallerPythonRedirector.exe OUsJaT.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.32731.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\misc.exe OUsJaT.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.2104.12721.0_x64__8wekyb3d8bbwe\LocalBridge.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmic.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoev.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe OUsJaT.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ktab.exe OUsJaT.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe OUsJaT.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe OUsJaT.exe File opened for modification C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe OUsJaT.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsTerminal_1.6.10571.0_x64__8wekyb3d8bbwe\WindowsTerminal.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\klist.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Integrator.exe OUsJaT.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.42251.0_x64__8wekyb3d8bbwe\AppInstaller.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe OUsJaT.exe File opened for modification C:\Program Files\Windows Mail\wabmig.exe OUsJaT.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\rmid.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msotd.exe OUsJaT.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE OUsJaT.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsMaps_1.0.22.0_x64__8wekyb3d8bbwe\Maps.exe OUsJaT.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe OUsJaT.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe OUsJaT.exe -
Launches sc.exe 4 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exesc.exepid process 4664 sc.exe 2936 sc.exe 2896 sc.exe 4108 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 11 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
cmd.exesc.execmd.execmd.exeMontanaInject.exeOUsJaT.exesc.execmd.exesc.exesc.execmd.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language MontanaInject.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language OUsJaT.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
MontanaInject.exepid process 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe 5064 MontanaInject.exe -
Suspicious use of WriteProcessMemory 33 IoCs
Processes:
Exterm.exeMontanaInject.execmd.execmd.execmd.execmd.exeOUsJaT.exedescription pid process target process PID 1920 wrote to memory of 5064 1920 Exterm.exe MontanaInject.exe PID 1920 wrote to memory of 5064 1920 Exterm.exe MontanaInject.exe PID 1920 wrote to memory of 5064 1920 Exterm.exe MontanaInject.exe PID 5064 wrote to memory of 2304 5064 MontanaInject.exe OUsJaT.exe PID 5064 wrote to memory of 2304 5064 MontanaInject.exe OUsJaT.exe PID 5064 wrote to memory of 2304 5064 MontanaInject.exe OUsJaT.exe PID 5064 wrote to memory of 4464 5064 MontanaInject.exe cmd.exe PID 5064 wrote to memory of 4464 5064 MontanaInject.exe cmd.exe PID 5064 wrote to memory of 4464 5064 MontanaInject.exe cmd.exe PID 4464 wrote to memory of 2896 4464 cmd.exe sc.exe PID 4464 wrote to memory of 2896 4464 cmd.exe sc.exe PID 4464 wrote to memory of 2896 4464 cmd.exe sc.exe PID 5064 wrote to memory of 1092 5064 MontanaInject.exe cmd.exe PID 5064 wrote to memory of 1092 5064 MontanaInject.exe cmd.exe PID 5064 wrote to memory of 1092 5064 MontanaInject.exe cmd.exe PID 1092 wrote to memory of 4108 1092 cmd.exe sc.exe PID 1092 wrote to memory of 4108 1092 cmd.exe sc.exe PID 1092 wrote to memory of 4108 1092 cmd.exe sc.exe PID 5064 wrote to memory of 4800 5064 MontanaInject.exe cmd.exe PID 5064 wrote to memory of 4800 5064 MontanaInject.exe cmd.exe PID 5064 wrote to memory of 4800 5064 MontanaInject.exe cmd.exe PID 4800 wrote to memory of 4664 4800 cmd.exe sc.exe PID 4800 wrote to memory of 4664 4800 cmd.exe sc.exe PID 4800 wrote to memory of 4664 4800 cmd.exe sc.exe PID 5064 wrote to memory of 2908 5064 MontanaInject.exe cmd.exe PID 5064 wrote to memory of 2908 5064 MontanaInject.exe cmd.exe PID 5064 wrote to memory of 2908 5064 MontanaInject.exe cmd.exe PID 2908 wrote to memory of 2936 2908 cmd.exe sc.exe PID 2908 wrote to memory of 2936 2908 cmd.exe sc.exe PID 2908 wrote to memory of 2936 2908 cmd.exe sc.exe PID 2304 wrote to memory of 544 2304 OUsJaT.exe cmd.exe PID 2304 wrote to memory of 544 2304 OUsJaT.exe cmd.exe PID 2304 wrote to memory of 544 2304 OUsJaT.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmpfile-main\Exterm.exe"C:\Users\Admin\AppData\Local\Temp\tmpfile-main\Exterm.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:1920 -
C:\Users\Admin\AppData\Local\Temp\MontanaInject.exe"C:\Users\Admin\AppData\Local\Temp\MontanaInject.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5064 -
C:\Users\Admin\AppData\Local\Temp\OUsJaT.exeC:\Users\Admin\AppData\Local\Temp\OUsJaT.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7a580052.bat" "4⤵
- System Location Discovery: System Language Discovery
PID:544
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c sc stop FairplayKD >nul3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4464 -
C:\Windows\SysWOW64\sc.exesc stop FairplayKD4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2896
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c sc delete FairplayKD >nul3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1092 -
C:\Windows\SysWOW64\sc.exesc delete FairplayKD4⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4108
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c sc stop FairplayKD1 >nul3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800 -
C:\Windows\SysWOW64\sc.exesc stop FairplayKD14⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:4664
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c sc delete FairplayKD1 >nul3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2908 -
C:\Windows\SysWOW64\sc.exesc delete FairplayKD14⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2936
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4B
MD5d3b07384d113edec49eaa6238ad5ff00
SHA1f1d2d2f924e986ac86fdf7b36c94bcdf32beec15
SHA256b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c
SHA5120cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6
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Filesize
4B
MD520879c987e2f9a916e578386d499f629
SHA1c7b33ddcc42361fdb847036fc07e880b81935d5d
SHA2569f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
SHA512bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f
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Filesize
187B
MD50ee1d93aef912b7eac3f64ba44410716
SHA19edca799ffe75ce1831f467b787772e96d9c294c
SHA256e8af15e17d9b77da8f3037fc87eebc1266248ac721895e91da39f9a67b4f910d
SHA5120f0e72bc3c283d6d4c8e85d94c1fd86467ccb938ea79c6a79909b6ace2999878a41b3b92fb5ed9419ee327c2da9bd06c58f9cdddbe44804857e9f7b1e2e035f5
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Filesize
79KB
MD516d4eec72ee69f6acae5a362488dcac7
SHA1014d4b32236bc6dc648aeddf6819e1e0e62718d8
SHA256d2d80e8ba8030df48bd0c485ec83b5bdf3c500cb84cdaca664e9fb6b1b4b6c9f
SHA5121f320a07d98ce30f693429869830341e789c6ca2dc95d6fc148f5ddb141793cc877ad8cab9459af2caac1919a1ae245c12ce0f1ee2bed0f01c06eddb734cc61c
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e