Analysis
- max time kernel
150s - max time network
145s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
10/08/2026, 18:56
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
aa401a01058003ab9f893a0c1a7618692bae93534e19fbcdbf68b41c3ed9caa4.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target aa401a01058003ab9f893a0c1a7618692bae93534e19fbcdbf68b41c3ed9caa4.exe
- Size 4.3MB
- Sample260810-xlpknsward
- SHA256 aa401a01058003ab9f893a0c1a7618692bae93534e19fbcdbf68b41c3ed9caa4
- MD5 41e717a42444bc0beba1d8621fa5e333
- SHA1 8365802ea728214c5be93e59a74581d5b01a7ba1
- SHA512 e53850c67a2086f5527b9e1aa158afaccb2b41f7881aa04cd85c76b8be5757a1d3b3378501ea45272bdd65a2079eb973b6102640f301092e6cc05ce87f28c0ee
- SSDEEP 98304:S8KyU4XJP4Z0fUoJ6bzGScIMJqGE6Mc+mDFYrRchl15E//JfGj:vKNQTIMDE6M+D06v0/xfO
- TLSH T17926AEA2750D76DFD4462274DD63CD82A93D43B94B2449C3AC6DBCBD7E23CC116AAC28
- 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 behavioral2/memory/4392-9-0x0000000000100000-0x0000000000109000-memory.dmp family_bdaejec_backdoor -
resource yara_rule behavioral2/files/0x000600000000697a-4.dat aspack_v212_v242 - Executes dropped EXE 1 IoCs
pid Process 4392 VWMufk.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\java.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jstack.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoia.exe VWMufk.exe File opened for modification C:\Program Files\Mozilla Firefox\pingsender.exe VWMufk.exe File opened for modification C:\Program Files\Windows Defender\MpDefenderCoreService.exe VWMufk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java.exe VWMufk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\orbd.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jstatd.exe VWMufk.exe File opened for modification C:\Program Files\dotnet\dotnet.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jdeps.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe VWMufk.exe File opened for modification C:\Program Files\Mozilla Firefox\plugin-container.exe VWMufk.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jar.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe VWMufk.exe File opened for modification C:\Program Files\Google\Chrome\Application\140.0.7339.81\os_update_handler.exe VWMufk.exe File opened for modification C:\Program Files\Windows Defender Advanced Threat Protection\SenseIR.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\unpack200.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe VWMufk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ktab.exe VWMufk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\rmid.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Integrator.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE VWMufk.exe File opened for modification C:\Program Files (x86)\Google\GoogleUpdater\141.0.7340.0\disabledupdater.exe VWMufk.exe File opened for modification C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javaws.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\wsimport.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe VWMufk.exe File opened for modification C:\Program Files\VideoLAN\VLC\uninstall.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe VWMufk.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 VWMufk.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\ktab.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\schemagen.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ONENOTEM.EXE VWMufk.exe File opened for modification C:\Program Files\Mozilla Firefox\uninstall\helper.exe VWMufk.exe File opened for modification C:\Program Files\Windows Defender\mpextms.exe VWMufk.exe File opened for modification C:\Program Files (x86)\Windows Defender\MpCmdRun.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\javapackager.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jcmd.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe VWMufk.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\kinit.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe VWMufk.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe VWMufk.exe File opened for modification C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe VWMufk.exe File opened for modification C:\Program Files\7-Zip\7zG.exe VWMufk.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jconsole.exe VWMufk.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 4492 cmd.exe - Program crash 1 IoCs
pid pid_target Process procid_target 2096 2964 WerFault.exe 87 - 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 aa401a01058003ab9f893a0c1a7618692bae93534e19fbcdbf68b41c3ed9caa4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language VWMufk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 2964 wrote to memory of 4392 2964 aa401a01058003ab9f893a0c1a7618692bae93534e19fbcdbf68b41c3ed9caa4.exe 88 PID 4392 wrote to memory of 4492 4392 VWMufk.exe 93
Processes
-
C:\Users\Admin\AppData\Local\Temp\aa401a01058003ab9f893a0c1a7618692bae93534e19fbcdbf68b41c3ed9caa4.exe"C:\Users\Admin\AppData\Local\Temp\aa401a01058003ab9f893a0c1a7618692bae93534e19fbcdbf68b41c3ed9caa4.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2964 -
C:\Users\Admin\AppData\Local\Temp\VWMufk.exeC:\Users\Admin\AppData\Local\Temp\VWMufk.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4392 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\10145b07.bat" "3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
PID:4492
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2964 -s 2762⤵
- Program crash
PID:2096
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2964 -ip 29641⤵PID:1916
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\10145b07.bat
- Size 187B
- SHA256 bce431f47e256efac63047b452ba46097a8dcb873276ec190b5451257b158b0e
- MD5 71b578a28019a421e38f846b66fb985a
- SHA1 276d9853b3de718cbe228740c8ab019ecafcc884
- SHA512 091f4dbe86348d238801574674f27f67fa990edbc1549b0307a127d34aaedf75ce915b83461a57e711a13640a6bbe1049717233612a3e1958dccb66d3f4a5763
- TLSH T16FC01241818AC7591854506B06E1714DC165085D3B492F116B31C46D729680DB9C7341
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\VWMufk.exe
- Size 15KB
- SHA256 4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
- MD5 56b2c3810dba2e939a8bb9fa36d3cf96
- SHA1 99ee31cd4b0d6a4b62779da36e0eeecdd80589fc
- SHA512 27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e
- SSDEEP 384:7XZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:1QGPL4vzZq2o9W7GsxBbPr
- TLSH T10B62BFB34EC098FFC4CD353340823687CB7B4670DABA617F826288372895E19AC55595
- MD5 SHA1 SHA512 SSDEEP TLSH