Analysis
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max time kernel
106s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
28-12-2024 18:02
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe
Resource
win7-20240903-en
windows7-x64
12 signatures
150 seconds
General
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Target
f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe
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Size
12.0MB
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MD5
4b137f312a7728304f9f9f31bdc044bf
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SHA1
a7329f07aa7197348c744bc665fe78df5c3aa83f
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SHA256
f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c
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SHA512
afde317aa4c4ce4d6f143712df448b0dea5009cb50538c7e80e6688409122a51ab413a1bc51d1bf3b3c752c602e51823f1363b109f31f902e9e7c8d445072743
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SSDEEP
49152:s/KE1ld3/wAyJxVZp2bnbJ5eA+z1FTCTMqQ:s/KU9/pyJx9Y5elZ0T
Malware Config
Extracted
Family
bdaejec
C2
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/3168-10-0x0000000000A90000-0x0000000000A99000-memory.dmp family_bdaejec_backdoor -
resource yara_rule behavioral2/files/0x0010000000023bc5-2.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation JfCFjy.exe -
Executes dropped EXE 1 IoCs
pid Process 3168 JfCFjy.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk-1.8\bin\idlj.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe JfCFjy.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jmap.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\tnameserv.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstaller.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\ScreenSketch.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Microsoft.MicrosoftSolitaireCollection.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\servertool.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxTsr.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoev.exe JfCFjy.exe File opened for modification C:\Program Files\VideoLAN\VLC\uninstall.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\misc.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\SoundRec.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmid.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\schemagen.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office 15\ClientX64\IntegratedOffice.exe JfCFjy.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javacpl.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE JfCFjy.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\policytool.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe JfCFjy.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE JfCFjy.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe JfCFjy.exe File opened for modification C:\Program Files\7-Zip\7zG.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\servertool.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\wsimport.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmic.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jinfo.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javaws.exe JfCFjy.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 JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe JfCFjy.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 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JfCFjy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1132 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1132 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 1132 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 1132 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1132 wrote to memory of 3168 1132 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 82 PID 1132 wrote to memory of 3168 1132 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 82 PID 1132 wrote to memory of 3168 1132 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 82 PID 3168 wrote to memory of 3552 3168 JfCFjy.exe 103 PID 3168 wrote to memory of 3552 3168 JfCFjy.exe 103 PID 3168 wrote to memory of 3552 3168 JfCFjy.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe"C:\Users\Admin\AppData\Local\Temp\f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1132 -
C:\Users\Admin\AppData\Local\Temp\JfCFjy.exeC:\Users\Admin\AppData\Local\Temp\JfCFjy.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:3168 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\05e14814.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:3552
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
187B
MD54f7a47f377dbd75ff1efbdca8e214bea
SHA159219318ea4c8798cd092b139ce53052b39623da
SHA2568ff74c8946a3883b407ac12bacf3ecd1dc48b847a8acc1846125b4b9f0b831d8
SHA512247c9468cb15151388586d63581204e2ffcd9eaf2453a13e2924f7fa5a6b6665ed90f84270a6b4ff17bce0d663671704e977035b3e06f74c9770378bc7776d7a
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e