bdaejec | 8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d

Analysis

max time kernel
128s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2024 17:51

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General

Target

8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe
Size

12.0MB
MD5

00781601407e4d52723f37b8a720b4bd
SHA1

3416c27ca9af798f84e6994f0d8a54896cb256d6
SHA256

8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d
SHA512

4fa965e021159ea3fb805bc3a12de682d002f4cb3d0ca42b7c6cdc97d722a030c0c7e26cc65a19011fb2fc470a8a7ae53cd77472b448e91dab0fa310fbc37951
SSDEEP

49152:s/KE1ld3/wAyJxVZp2bnbJ5eA+zOFTCTMqQ:s/KU9/pyJx9Y5ela0T

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. 2 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/2728-6-0x0000000000F30000-0x0000000000F39000-memory.dmp	family_bdaejec_backdoor
behavioral2/memory/2728-10-0x0000000000F30000-0x0000000000F39000-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/0x000c000000023b42-2.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	RVwrSt.exe

Executes dropped EXE 1 IoCs

pid	Process
2728	RVwrSt.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVLP.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE	RVwrSt.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.HEIFImageExtension_1.0.22742.0_x64__8wekyb3d8bbwe\codecpacks.heif.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBackgroundHost.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	RVwrSt.exe
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jjs.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{ACF3742B-09B5-421B-BDF2-BEE548AB1938}\chrome_installer.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\serialver.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.Brokered.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Video.UI.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteim.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\orbd.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\klist.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\123.0.6312.123\chrome_installer.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\arh.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	RVwrSt.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdate.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmid.exe	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\maintenanceservice.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE	RVwrSt.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\chrmstp.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe	RVwrSt.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	RVwrSt.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	RVwrSt.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.0.30251.0_x64__8wekyb3d8bbwe\AppInstallerElevatedAppServiceClient.exe	RVwrSt.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	RVwrSt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1104	8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1104	8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe
1104	8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe
1104	8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1104 wrote to memory of 2728	1104	8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe	82
PID 1104 wrote to memory of 2728	1104	8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe	82
PID 1104 wrote to memory of 2728	1104	8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe	82
PID 2728 wrote to memory of 4996	2728	RVwrSt.exe	93
PID 2728 wrote to memory of 4996	2728	RVwrSt.exe	93
PID 2728 wrote to memory of 4996	2728	RVwrSt.exe	93

C:\Users\Admin\AppData\Local\Temp\8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe
"C:\Users\Admin\AppData\Local\Temp\8a2be8b987ef5bfa48ebadd552e7ee55c7910fd805abc38773a98a330de61e1d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1104
- C:\Users\Admin\AppData\Local\Temp\RVwrSt.exe
  C:\Users\Admin\AppData\Local\Temp\RVwrSt.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:2728
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1cfc1e95.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4996

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\Temp\1cfc1e95.bat

Filesize
187B

MD5
8d118bcb8201f3fde37958f4e8489282

SHA1
94ce96ca3d181bbd8e70c6c185dfd4af824479a9

SHA256
fcff1b9ad51edf4a140f31fd797a06a18a929f140ac233ab2e5edee336a5ad52

SHA512
95cac8fc32d7a0cd6a09d112e43b7dd2ca37b7ce65749545cb629936f71315894a21be9a5f0b95f7caa6b3e8e481e8f01ef2df5243f68e121c67c435e55adbcd

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1104-4-0x0000000000010000-0x0000000000C71000-memory.dmp

Filesize
12.4MB

Download
memory/1104-8-0x0000000003400000-0x0000000003500000-memory.dmp

Filesize
1024KB

Download
memory/1104-9-0x0000000000010000-0x0000000000C71000-memory.dmp

Filesize
12.4MB

Download
memory/1104-11-0x0000000003400000-0x0000000003500000-memory.dmp

Filesize
1024KB

Download
memory/2728-6-0x0000000000F30000-0x0000000000F39000-memory.dmp

Filesize
36KB

Download
memory/2728-10-0x0000000000F30000-0x0000000000F39000-memory.dmp

Filesize
36KB

Download