bdaejec | 34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386c

Analysis

max time kernel
137s
max time network
108s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-10-2024 20:46

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General

Target

34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386cN.exe
Size

19KB
MD5

fa9b94d1b6fe18d76493bc486da97fa0
SHA1

d8a6b7c937eee335f5aa352b74466357b0157b3a
SHA256

34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386c
SHA512

3e8e7486d8adb420361ddb54ff7b9bbeec4748b0044a4a00f9e60138b87b147a21f16fde877f207bfa292bb01a850ef50444ff85104b98d6fde54952459b745d
SSDEEP

384:1FxSBXZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:UfQGPL4vzZq2o9W7GsxBbPr

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

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/1788-45-0x0000000000440000-0x0000000000449000-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/0x000b000000023bc3-5.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	kwkSXa.exe

Executes dropped EXE 1 IoCs

pid	Process
1788	kwkSXa.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	kwkSXa.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\unpack200.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	kwkSXa.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\elevation_service.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msotd.exe	kwkSXa.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\OfficeClickToRun.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\fmui\fmui.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Solitaire.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	kwkSXa.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{87F23B05-A117-4666-BB8C-A9C77E6BFB56}\chrome_installer.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\notification_helper.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxOutlook.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	kwkSXa.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	kwkSXa.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	kwkSXa.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	kwkSXa.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\SoundRec.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jjs.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Windows Security\BrowserCore\BrowserCore.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Video.UI.exe	kwkSXa.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmic.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Wallet_2.4.18324.0_x64__8wekyb3d8bbwe\Microsoft.Wallet.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Maps.exe	kwkSXa.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	kwkSXa.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE	kwkSXa.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3132	3236	WerFault.exe	83

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	34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kwkSXa.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3236 wrote to memory of 1788	3236	34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386cN.exe	84
PID 3236 wrote to memory of 1788	3236	34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386cN.exe	84
PID 3236 wrote to memory of 1788	3236	34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386cN.exe	84
PID 1788 wrote to memory of 2924	1788	kwkSXa.exe	88
PID 1788 wrote to memory of 2924	1788	kwkSXa.exe	88
PID 1788 wrote to memory of 2924	1788	kwkSXa.exe	88

C:\Users\Admin\AppData\Local\Temp\34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386cN.exe
"C:\Users\Admin\AppData\Local\Temp\34aa3f7cd0493e2a8d5258a3cbe7ee1e0c7d53e0b8549d84989cc4a5ce17386cN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3236
- C:\Users\Admin\AppData\Local\Temp\kwkSXa.exe
  C:\Users\Admin\AppData\Local\Temp\kwkSXa.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:1788
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\74ae3d43.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3236 -s 664
  2⤵
  - Program crash
  PID:3132

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3236 -ip 3236
1⤵
PID:396

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\P2UT3MS5\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\161153A4.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\74ae3d43.bat

Filesize
187B

MD5
1895f4681e355b488c364b8804591200

SHA1
d84806dfe7a1470bc8374a3ac4b83f6fb2830193

SHA256
975206ee1efa1bf1644836c94dd86340113d3da7f366efe9852b1288565c3c53

SHA512
56e0d5fc4e95aac7ba8f7f2291e64285e4401a8e54c2c0e7f58f64bf7f82cad862bca6848d2131cc5a3674fd8a64c56d41fd4cd6bf689d3977b73ab6f7be0aa4

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1788-4-0x0000000000440000-0x0000000000449000-memory.dmp

Filesize
36KB

Download
memory/1788-45-0x0000000000440000-0x0000000000449000-memory.dmp

Filesize
36KB

Download
memory/3236-0-0x0000000001000000-0x0000000001008000-memory.dmp

Filesize
32KB

Download
memory/3236-47-0x0000000001000000-0x0000000001008000-memory.dmp

Filesize
32KB

Download