Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
31/07/2026, 10:44
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2ebd64bb21cd217dcfb95a0eca6b805a7f88339872feca95c5080f1f4577e3f8.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
10 signatures
150 seconds
General
- Target 2ebd64bb21cd217dcfb95a0eca6b805a7f88339872feca95c5080f1f4577e3f8.exe
- Size 798KB
- Sample260731-mtaflsgh72
- SHA256 2ebd64bb21cd217dcfb95a0eca6b805a7f88339872feca95c5080f1f4577e3f8
- MD5 440ea5caf8015317f7ee7fa9f105bb9c
- SHA1 968a5975347074a45422c211aac10031fa3a61b1
- SHA512 838d285870ea8eac5e869a8aca3bda1a9084609fe58965847f8b25014d8ed80c1ab8a9a21aa6da35ed172e6f67fb989963eb95cc8715305742623391044fbdf0
- SSDEEP 24576:JYugd9XxZBEjLUlh8pWqn3JTQ+4uvKuXHFOm5:qXZBqxIu1Oq
- TLSH T1FC059E61BE41C0B3E26101759475EBF60C396D3887209ACBE3D07F75AA302D1AE3B65E
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
bdaejec
C2
-
ddos.dnsnb8.net
Signatures
- Detects Bdaejec Backdoor. 1 IoCs
Bdaejec is backdoor written in C++.
resource yara_rule behavioral1/memory/4952-8-0x00000000004C0000-0x00000000004C9000-memory.dmp family_bdaejec_backdoor -
resource yara_rule behavioral1/files/0x000c00000002428e-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-1-5-21-876885714-46325919-1482798410-1000\Control Panel\International\Geo\Nation rzKKWR.exe - Executes dropped EXE 1 IoCs
pid Process 4952 rzKKWR.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk-1.8\bin\jjs.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe rzKKWR.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jhat.exe rzKKWR.exe File opened for modification C:\Program Files\Mozilla Firefox\crashreporter.exe rzKKWR.exe File opened for modification C:\Program Files\Mozilla Firefox\plugin-container.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe rzKKWR.exe File opened for modification C:\Program Files\VideoLAN\VLC\vlc.exe rzKKWR.exe File opened for modification C:\Program Files (x86)\Windows Mail\wabmig.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\policytool.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\SoundRec.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe rzKKWR.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe rzKKWR.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome_proxy.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SCANPST.EXE rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsCamera_2018.826.98.0_x64__8wekyb3d8bbwe\WindowsCamera.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\idlj.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\kinit.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Solitaire.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe rzKKWR.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\3DViewer.exe rzKKWR.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javaws.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ktab.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoia.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstaller.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxOutlook.exe rzKKWR.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\java.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE rzKKWR.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe rzKKWR.exe File opened for modification C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe rzKKWR.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe rzKKWR.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\kinit.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmid.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javapackager.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jdeps.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe rzKKWR.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE rzKKWR.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe rzKKWR.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\orbd.exe rzKKWR.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 4528 cmd.exe - 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 2ebd64bb21cd217dcfb95a0eca6b805a7f88339872feca95c5080f1f4577e3f8.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rzKKWR.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3048 wrote to memory of 4952 3048 2ebd64bb21cd217dcfb95a0eca6b805a7f88339872feca95c5080f1f4577e3f8.exe 87 PID 4952 wrote to memory of 4528 4952 rzKKWR.exe 98
Processes
-
C:\Users\Admin\AppData\Local\Temp\2ebd64bb21cd217dcfb95a0eca6b805a7f88339872feca95c5080f1f4577e3f8.exe"C:\Users\Admin\AppData\Local\Temp\2ebd64bb21cd217dcfb95a0eca6b805a7f88339872feca95c5080f1f4577e3f8.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048 -
C:\Users\Admin\AppData\Local\Temp\rzKKWR.exeC:\Users\Admin\AppData\Local\Temp\rzKKWR.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:4952 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\33c35b99.bat" "3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:4528
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\33c35b99.bat
- Size 187B
- SHA256 492f44b345560f4df3826328aedaa9066ad92f8553aef7fa11b41f76e6a37cf9
- MD5 ff4df4399238de37afd34ea07701aedf
- SHA1 2fdbf174de36808702ee19d2f288071cb835d567
- SHA512 18347ea0d04172e4671a2dff1ae9e6bbd7eb535c3f89f65ad73a74234fe5bce00abbca4d13f927fe6f652afb6b3c3b2be64d6a090ba184cd5ecc605c25dc27b0
- TLSH T134C012128397C7691456503716F1A68CC175185C3B992B125B30885CB19681DB5D3B01
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\rzKKWR.exe
- Size 15KB
- SHA256 4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
- MD5 56b2c3810dba2e939a8bb9fa36d3cf96
- SHA1 99ee31cd4b0d6a4b62779da36e0eeecdd80589fc
- SHA512 27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e
- SSDEEP 384:7XZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:1QGPL4vzZq2o9W7GsxBbPr
- TLSH T10B62BFB34EC098FFC4CD353340823687CB7B4670DABA617F826288372895E19AC55595
- MD5 SHA1 SHA512 SSDEEP TLSH