bdaejec | fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019

Analysis

max time kernel
148s
max time network
153s
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

fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019.exe
Size

70KB
MD5

773fff3c349185de3ffd4a1b28e23f11
SHA1

f2b50cf287ecc19e8841ce96e1a62ac9a46edf69
SHA256

fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019
SHA512

e685579b3e83d5a7b6c3fa155b712a184fbb40be528cd39529df574539e16056cef0e4b39784be22be33c97d75c0aaebec69dd525dbaceb1c37c033d973a5e33
SSDEEP

768:5P9yZnHsBNTdsOu/CaF9cHXuakHfgDa8fxPisQGPL4vzZq2o9W7GsxBbPr:5P9DTWCtcfgDEvGCq2iW7z

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/1176-8-0x0000000000A90000-0x0000000000A99000-memory.dmp	family_bdaejec_backdoor

Downloads MZ/PE file 2 IoCs

flow	pid	Process
46	4472	Process not Found
58	3008	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/0x000c000000023c58-5.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-1-5-21-194335498-2604837297-537231065-1000\Control Panel\International\Geo\Nation	bWCKpk.exe

Executes dropped EXE 1 IoCs

pid	Process
1176	bWCKpk.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	bWCKpk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.exe	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	bWCKpk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DATABASECOMPARE.EXE	bWCKpk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	bWCKpk.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	bWCKpk.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	bWCKpk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Video.UI.exe	bWCKpk.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	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jconsole.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\keytool.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	bWCKpk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaws.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	bWCKpk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteim.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	bWCKpk.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.Brokered.exe	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe	bWCKpk.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jabswitch.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	bWCKpk.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	bWCKpk.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	bWCKpk.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bWCKpk.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
3004	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4968 wrote to memory of 1176	4968	fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019.exe	86
PID 4968 wrote to memory of 1176	4968	fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019.exe	86
PID 4968 wrote to memory of 1176	4968	fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019.exe	86
PID 1176 wrote to memory of 1920	1176	bWCKpk.exe	90
PID 1176 wrote to memory of 1920	1176	bWCKpk.exe	90
PID 1176 wrote to memory of 1920	1176	bWCKpk.exe	90

C:\Users\Admin\AppData\Local\Temp\fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019.exe
"C:\Users\Admin\AppData\Local\Temp\fdcb8bc9dacb8a87b412158acab0d27fe1d0b34ba1ba8ca747d7ecbc890da019.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4968
- C:\Users\Admin\AppData\Local\Temp\bWCKpk.exe
  C:\Users\Admin\AppData\Local\Temp\bWCKpk.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:1176
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\52530dfe.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1920

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDcxNzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTY4MDM3MTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MjE2MjE2NTE5Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:3004

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\386E1B7E.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\52530dfe.bat

Filesize
187B

MD5
361ca76a4c108c712112e70f23607dcf

SHA1
ce711598097df9ee1ce659e9dddf7c5ac10a33c5

SHA256
ed01ff669de4b672236cf3c2b6fe831a8a60691376ffdd8418beb18a43f7a2a6

SHA512
c677b3eeec28be65febbdd41db3e8f291b4290c33fbd24f47771740492497e291300d8d6532af865d18b8b525d1b5fc5406770b8f228764605174140b4511306

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

Filesize
15KB

MD5
f7d21de5c4e81341eccd280c11ddcc9a

SHA1
d4e9ef10d7685d491583c6fa93ae5d9105d815bd

SHA256
4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794

SHA512
e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3

Download Submit
memory/1176-4-0x0000000000A90000-0x0000000000A99000-memory.dmp

Filesize
36KB

Download
memory/1176-8-0x0000000000A90000-0x0000000000A99000-memory.dmp

Filesize
36KB

Download
memory/4968-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4968-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download