bdaejec | 2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e

Analysis

max time kernel
93s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 09:17

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General

Target

2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe
Size

141KB
MD5

4dae1ddd256a815242b9f6d6f8c8ddec
SHA1

fe4c65aea8d7da1ad89213f7cbeecaa909436825
SHA256

2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e
SHA512

64b66c837050d1ccaa92e3ccf3083b0754bf0c039941f91e09dfef5765a6d006d52512d2bf05e135b13b9c26a267e519d6b203e88a5313aa5d6926143c1c64e7
SSDEEP

3072:pc/QPqpDnKYSO40L58FvumU9aDtxG12X85cXaGCH:IQPq1nKLOxCM4A2Xvr

Score

10^/10

bdaejec aspackv2 backdoor discovery

Malware Config

Extracted

Family

bdaejec

ddos.dnsnb8.net

Signatures

Bdaejec
Bdaejec is a backdoor written in C++.
backdoor bdaejec
Bdaejec family
bdaejec

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/316-33-0x0000000000E70000-0x0000000000E79000-memory.dmp	family_bdaejec_backdoor

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000c000000023b42-5.dat	aspack_v212_v242

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	tBknj.exe

Executes dropped EXE 1 IoCs

pid	Process
316	tBknj.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\kinit.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstack.exe	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	tBknj.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	tBknj.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	tBknj.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Xbox.TCUI_1.23.28002.0_x64__8wekyb3d8bbwe\TCUI-App.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE	tBknj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msotd.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	tBknj.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	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jmap.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\codecpacks.heif.exe	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\ktab.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmid.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	tBknj.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	tBknj.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe	tBknj.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	tBknj.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	tBknj.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	tBknj.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	tBknj.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tBknj.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 316	1608	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe	83
PID 1608 wrote to memory of 316	1608	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe	83
PID 1608 wrote to memory of 316	1608	2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe	83
PID 316 wrote to memory of 4224	316	tBknj.exe	84
PID 316 wrote to memory of 4224	316	tBknj.exe	84
PID 316 wrote to memory of 4224	316	tBknj.exe	84

C:\Users\Admin\AppData\Local\Temp\2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe
"C:\Users\Admin\AppData\Local\Temp\2a72afe6eb783cf0b9bcea82b6e4fa87ba8e6d94a11908e60dee87517446224e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Users\Admin\AppData\Local\Temp\tBknj.exe
  C:\Users\Admin\AppData\Local\Temp\tBknj.exe
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\469e07ae.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4224

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\26B41ECF.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\469e07ae.bat

Filesize
185B

MD5
bb0f8884872c52bc721329e8a19da659

SHA1
98b97fe80965103daa4d57af85aedd5cae53fdef

SHA256
9695d2a1d3d3b7849c20e5d110d2e55246d465173fdae9bb78383ff2eed28cf5

SHA512
3bc155ad3e569cc01e2c6a8afd769a275070317ca542996ed6c9cb8564033259efb83cba7015ba9399fddb5f0f335e6b75e591039796579c9154aeb62aba00f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\tBknj.exe

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/316-4-0x0000000000E70000-0x0000000000E79000-memory.dmp

Filesize
36KB

Download
memory/316-33-0x0000000000E70000-0x0000000000E79000-memory.dmp

Filesize
36KB

Download
memory/1608-0-0x0000000000990000-0x00000000009B8000-memory.dmp

Filesize
160KB

Download
memory/1608-7-0x0000000000990000-0x00000000009B8000-memory.dmp

Filesize
160KB

Download