Analysis
- max time kernel
150s - max time network
151s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
23/05/2026, 22:17
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2026-05-23_baf2f69ac46db4a70488c798c64f757f_cobalt-strike_elex_smoke-loader_wapomi.exe
Resource
win10v2004-20260513-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target 2026-05-23_baf2f69ac46db4a70488c798c64f757f_cobalt-strike_elex_smoke-loader_wapomi.exe
- Size 76KB
- Sample260523-17ppcabv3n
- SHA256 7b5b21cc868612d03121913e42b15182ca36fdf3585686f73df0d3a3409a019f
- MD5 baf2f69ac46db4a70488c798c64f757f
- SHA1 1b47a3a395d273a65240898259b64da7e1f718b5
- SHA512 38a3856296a1e2e3cff8b17d0368e012cd08f41d2746ed0b84f93f8027856901ecaa0b1107fff6a681c2ea21fb686e36e56c3bdf1743b328d6783ca645aa87a5
- SSDEEP 1536:fcnHbuMtV4FjMQGvZefLizs8s0cdY3uKQKN9LReetKwDGCq2iW7z:fcHCMtVhQqtmYRxN9teetKqGCH
- TLSH T1AF736B4376D444A3E673EF70587C5192AB7FB8714C60EA6F17902D0E48709A1DCB9ABC
- 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/5000-8-0x00000000003D0000-0x00000000003D9000-memory.dmp family_bdaejec_backdoor - Custom signatureDetects executables packed with ASPack 3 IoCs
resource yara_rule behavioral2/files/0x000400000002a8f9-3.dat INDICATOR_EXE_Packed_ASPack behavioral2/memory/5000-4-0x00000000003D0000-0x00000000003D9000-memory.dmp INDICATOR_EXE_Packed_ASPack behavioral2/memory/5000-8-0x00000000003D0000-0x00000000003D9000-memory.dmp INDICATOR_EXE_Packed_ASPack -
resource yara_rule behavioral2/files/0x000400000002a8f9-3.dat aspack_v212_v242 - Executes dropped EXE 1 IoCs
pid Process 5000 zBKv.exe - Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\Program Files\Java\jdk-1.8\bin\jmap.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\schemagen.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe zBKv.exe File opened for modification C:\Program Files\Google\Chrome\Application\chrome.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jcmd.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\OLCFG.EXE zBKv.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javaw.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe zBKv.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\pack200.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_2.2106.2807.0_x64__8wekyb3d8bbwe\Win32Bridge.Server.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.PowerAutomateDesktop_1.0.65.0_x64__8wekyb3d8bbwe\PAD.Console.Host.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jconsole.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\klist.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_4.0.2.0_x64__8wekyb3d8bbwe\StickyNotesStub.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsNotepad_10.2102.13.0_x64__8wekyb3d8bbwe\Notepad\Notepad.exe zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Todos_0.33.33351.0_x64__8wekyb3d8bbwe\Todo.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jdeps.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jinfo.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\ONENOTEM.EXE zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\pack200.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Windows.Photos_21.21030.25003.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.12827.20400.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe zBKv.exe File opened for modification C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe zBKv.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ktab.exe zBKv.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\ssvagent.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_1.0.38.0_x64__8wekyb3d8bbwe\SoundRec.exe zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe zBKv.exe File opened for modification C:\Program Files\Windows Mail\wab.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.Edge.GameAssist_1.0.3456.0_x64__8wekyb3d8bbwe\EdgeGameAssist.exe zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\rmid.exe zBKv.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\javacpl.exe zBKv.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\excelcnv.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.WindowsStore_12104.1001.1.0_x64__8wekyb3d8bbwe\WinStore.App.exe zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe zBKv.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\jabswitch.exe zBKv.exe File opened for modification C:\Program Files\7-Zip\Uninstall.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe zBKv.exe File opened for modification C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe zBKv.exe File opened for modification C:\Program Files\Mozilla Firefox\firefox.exe zBKv.exe File opened for modification C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.42251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe zBKv.exe File opened for modification C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe zBKv.exe File opened for modification C:\Program Files\Java\jre-1.8\bin\java-rmi.exe zBKv.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 2026-05-23_baf2f69ac46db4a70488c798c64f757f_cobalt-strike_elex_smoke-loader_wapomi.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language zBKv.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe - Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3916 2026-05-23_baf2f69ac46db4a70488c798c64f757f_cobalt-strike_elex_smoke-loader_wapomi.exe 3916 2026-05-23_baf2f69ac46db4a70488c798c64f757f_cobalt-strike_elex_smoke-loader_wapomi.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3916 wrote to memory of 5000 3916 2026-05-23_baf2f69ac46db4a70488c798c64f757f_cobalt-strike_elex_smoke-loader_wapomi.exe 80 PID 5000 wrote to memory of 5676 5000 zBKv.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-05-23_baf2f69ac46db4a70488c798c64f757f_cobalt-strike_elex_smoke-loader_wapomi.exe"C:\Users\Admin\AppData\Local\Temp\2026-05-23_baf2f69ac46db4a70488c798c64f757f_cobalt-strike_elex_smoke-loader_wapomi.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3916 -
C:\Users\Admin\AppData\Local\Temp\zBKv.exeC:\Users\Admin\AppData\Local\Temp\zBKv.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5ea41a43.bat" "3⤵
- System Location Discovery: System Language Discovery
PID:5676
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\5ea41a43.bat
- Size 183B
- SHA256 7775b72e8480a0b73a2ba202485066ba1f1cf8321e3b6ce7da4882d7629c89ee
- MD5 e69a71fb7cc6ab7886629ca2d77c7406
- SHA1 42870b8ece5b7f5b2832d7f0989e9ad8b8f25366
- SHA512 08fdc0e3ae837e2ddaefd56808fafd0604796f7da8355f0e8cdeb4e7dd38c06df76f6540d4dc4c9905864f0141e2aea11b95d301de900fa0d504124c1500b746
- TLSH T1D4C012128287CA591454506B06E2656CD065486E3B696B124B20845CB19640EF5C3301
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\zBKv.exe
- Size 15KB
- SHA256 4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
- MD5 56b2c3810dba2e939a8bb9fa36d3cf96
- SHA1 99ee31cd4b0d6a4b62779da36e0eeecdd80589fc
- SHA512 27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e
- SSDEEP 384:7XZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:1QGPL4vzZq2o9W7GsxBbPr
- TLSH T10B62BFB34EC098FFC4CD353340823687CB7B4670DABA617F826288372895E19AC55595
- MD5 SHA1 SHA512 SSDEEP TLSH