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 17:44
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe
Resource
win7-20241010-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/2248-10-0x0000000000DA0000-0x0000000000DA9000-memory.dmp family_bdaejec_backdoor -
resource yara_rule behavioral2/files/0x000c000000023b21-3.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation JfCFjy.exe -
Executes dropped EXE 1 IoCs
pid Process 2248 JfCFjy.exe -
Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\WINWORD.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\jre-1.8\bin\jabswitch.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javaw.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jjs.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\rmid.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.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 (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\123.0.6312.123\chrome_installer.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\kinit.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 (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE JfCFjy.exe File opened for modification C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.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\Microsoft Office\root\Office16\PerfBoost.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\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jcmd.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\orbd.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe JfCFjy.exe File opened for modification C:\Program Files\Windows Mail\wab.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerPythonRedirector.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\orbd.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\Integration\Addons\OneDriveSetup.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe JfCFjy.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc.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\Java\jre-1.8\bin\ktab.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\policytool.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.NetFX40.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Integrator.exe JfCFjy.exe File opened for modification C:\Program Files\VideoLAN\VLC\uninstall.exe JfCFjy.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.Brokered.exe JfCFjy.exe File opened for modification C:\Program Files (x86)\Windows Mail\wabmig.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javap.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\jre\bin\kinit.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe JfCFjy.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe JfCFjy.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\AppVLP.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\Mozilla Firefox\maintenanceservice.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\unpack200.exe JfCFjy.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe JfCFjy.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc-cache-gen.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.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 -
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 4172 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 4172 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 4172 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 4172 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4172 wrote to memory of 2248 4172 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 85 PID 4172 wrote to memory of 2248 4172 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 85 PID 4172 wrote to memory of 2248 4172 f20cd66961b45d63540527201158e386fd41139e53bbbf032acc60ac4774f38c.exe 85 PID 2248 wrote to memory of 3700 2248 JfCFjy.exe 104 PID 2248 wrote to memory of 3700 2248 JfCFjy.exe 104 PID 2248 wrote to memory of 3700 2248 JfCFjy.exe 104
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:4172 -
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:2248 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5a0c22f6.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:3700
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
187B
MD5b4cb1e1b8d11bc0e5c4b744b9fc8f07b
SHA12a5235438b2d7b7551fdc6716327cff81c9643ce
SHA256a5547dc268dad0f8024d75174199a7be996612794b010d9968b86e801eced21a
SHA51294c97abab4162012608e7edec204c1c94f13eae60a33c308078f2fd508e032908bfee3aa6c860364e4591082245d1158eef524f6367c20729c945e5145420234
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Filesize
15KB
MD556b2c3810dba2e939a8bb9fa36d3cf96
SHA199ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA2564354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
SHA51227812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e