Analysis
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max time kernel
25s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-12-2024 14:38
Static task
static1
Behavioral task
behavioral1
Sample
88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d.exe
Resource
win7-20240903-en
General
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Target
88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d.exe
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Size
1.3MB
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MD5
9d4ae503909970a9d7826540199ca021
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SHA1
d85e0c38dcdb692deb0251e1d368fadd4fb25e03
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SHA256
88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d
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SHA512
5bb73199535569817bc7bb20e2de010823e8016ecc6a69062bff05a66e0e5535a438557b87177a01d56194a6d5281a470e658f24235e224216f46dbee19af9fb
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SSDEEP
24576:YFdNA4IjV130iEu32T3Jrk3D/szFOHh2dwU/9BOzFN0DJyH/mT:co1EiENZyYzFOHh2yS9Apxm
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++.
resource yara_rule behavioral2/memory/3616-54-0x00000000003E0000-0x00000000003E9000-memory.dmp family_bdaejec_backdoor -
resource yara_rule behavioral2/files/0x000c000000023b07-3.dat aspack_v212_v242 -
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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation ETociU.exe -
Executes dropped EXE 1 IoCs
pid Process 3616 ETociU.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE ETociU.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe ETociU.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe ETociU.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe ETociU.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe ETociU.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\orbd.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msotd.exe ETociU.exe File opened for modification C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe ETociU.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\klist.exe ETociU.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe ETociU.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe ETociU.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\keytool.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE ETociU.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe ETociU.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe ETociU.exe File opened for modification C:\Program Files (x86)\Google\Update\Install\{9733680C-0D1E-4BD2-A74F-0CCF42A8BF32}\chrome_installer.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\unpack200.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\serialver.exe ETociU.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ktab.exe ETociU.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe ETociU.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe ETociU.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\kinit.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\java.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe ETociU.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.exe ETociU.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE ETociU.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javaw.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE ETociU.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe ETociU.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe ETociU.exe File opened for modification C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe ETociU.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\klist.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Integrator.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE ETociU.exe File opened for modification C:\Program Files\Windows Mail\wabmig.exe ETociU.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe ETociU.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler64.exe ETociU.exe File opened for modification C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe ETociU.exe File opened for modification C:\Program Files\7-Zip\7z.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe ETociU.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe ETociU.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe ETociU.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE ETociU.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe ETociU.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc.exe ETociU.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe ETociU.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 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ETociU.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 1632 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 1632 AUDIODG.EXE -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4860 wrote to memory of 3616 4860 88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d.exe 83 PID 4860 wrote to memory of 3616 4860 88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d.exe 83 PID 4860 wrote to memory of 3616 4860 88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d.exe 83 PID 3616 wrote to memory of 3308 3616 ETociU.exe 85 PID 3616 wrote to memory of 3308 3616 ETociU.exe 85 PID 3616 wrote to memory of 3308 3616 ETociU.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d.exe"C:\Users\Admin\AppData\Local\Temp\88c80731446aa225fe196fa58cf799654291c0f68ecf503f6a112d25e97de65d.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4860 -
C:\Users\Admin\AppData\Local\Temp\ETociU.exeC:\Users\Admin\AppData\Local\Temp\ETociU.exe2⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3616 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\719a53e7.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:3308
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x544 0x5041⤵
- Suspicious use of AdjustPrivilegeToken
PID:1632
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
187B
MD5694bb24719aa2fdd711c87442ce4f6a5
SHA1035ce670421dffe2c243ff731d8f2fe04a904b1d
SHA2566fd0d5f9e4af61972b736aedf8e9160499249beb7c9a6a0767aba34659c8083f
SHA512905df6232569ad3b460ff05f40db1b8127a20f4f2e66aff4d71994580d2e58205dd9e38d9f88a7f3f1705d29ad63e79c4769c187941b22fd2afb7ede5922698f
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Filesize
4B
MD520879c987e2f9a916e578386d499f629
SHA1c7b33ddcc42361fdb847036fc07e880b81935d5d
SHA2569f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31
SHA512bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e