bdaejec | 0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8

Analysis

max time kernel
109s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250207-en
resource tags

arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
submitted
09-02-2025 13:09

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General

Target

0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8.exe
Size

70KB
MD5

548b445c8ad7fc9533219cd7891903f3
SHA1

6af12462511fb94ba15e3347b3e1296728141389
SHA256

0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8
SHA512

910fec4afdd67a2f9e1f280f55dfb79c63fe36faf3cb023bc04f85700edd689ebd1bcbbbbfb177f8b75a79b41f54620bb20903a7b95de0c5e3e4e293211fba2b
SSDEEP

768:5P9yZnHsBNTdsOu/CaF9cHXuakHfgDa8fxPqYQGPL4vzZq2o9W7GsxBbPr:5P9DTWCtcfgDEzGCq2iW7z

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/5036-8-0x0000000000650000-0x0000000000659000-memory.dmp	family_bdaejec_backdoor

Downloads MZ/PE file 1 IoCs

flow	pid	Process
61	2364	Process not Found

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x000c000000023cf1-3.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-1-5-21-194335498-2604837297-537231065-1000\Control Panel\International\Geo\Nation	wkVuBg.exe

Executes dropped EXE 1 IoCs

pid	Process
5036	wkVuBg.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	wkVuBg.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE	wkVuBg.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe	wkVuBg.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	wkVuBg.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstaller.exe	wkVuBg.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	wkVuBg.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe	wkVuBg.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe	wkVuBg.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	wkVuBg.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	wkVuBg.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe	wkVuBg.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmid.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	wkVuBg.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\notification_helper.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	wkVuBg.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	wkVuBg.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\IntegratedOffice.exe	wkVuBg.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	wkVuBg.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe	wkVuBg.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	wkVuBg.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe	wkVuBg.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	wkVuBg.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	wkVuBg.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	wkVuBg.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaw.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstack.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe	wkVuBg.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	wkVuBg.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE	wkVuBg.exe
File opened for modification	C:\Program Files\Mozilla Firefox\updater.exe	wkVuBg.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe	wkVuBg.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	wkVuBg.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	wkVuBg.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 4 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	0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wkVuBg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3696	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 5036	4996	0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8.exe	86
PID 4996 wrote to memory of 5036	4996	0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8.exe	86
PID 4996 wrote to memory of 5036	4996	0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8.exe	86
PID 5036 wrote to memory of 3324	5036	wkVuBg.exe	92
PID 5036 wrote to memory of 3324	5036	wkVuBg.exe	92
PID 5036 wrote to memory of 3324	5036	wkVuBg.exe	92

C:\Users\Admin\AppData\Local\Temp\0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8.exe
"C:\Users\Admin\AppData\Local\Temp\0c55b9b81e49dea22ff19372bd3d5496ecb5da67a39a5db7030af0f0b12b37b8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Users\Admin\AppData\Local\Temp\wkVuBg.exe
  C:\Users\Admin\AppData\Local\Temp\wkVuBg.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:5036
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\5c8d6eaa.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3324

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDcxNzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTY4MDM3MTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0OTIxMzg4ODQ5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3696

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

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6NG3XLY0\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\332F4B21.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\5c8d6eaa.bat

Filesize
187B

MD5
035c1943fe2627d5e1e3416aac9292fe

SHA1
6cb13e84fbc1ba19bd24765fbe3280162883ce9b

SHA256
5aeede9d0157614c29c1a67a09324552679f7b38fce22f04f236764685b01a26

SHA512
12a9898a5c488310dfa18e95ef5ee4780aa897d97e868d9186f3ece1d4c330671825fb5911228f7776f23eb3a7b9046c31860f56fa24eb659e989a39d3ffef50

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/4996-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4996-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/5036-4-0x0000000000650000-0x0000000000659000-memory.dmp

Filesize
36KB

Download
memory/5036-8-0x0000000000650000-0x0000000000659000-memory.dmp

Filesize
36KB

Download