bdaejec | b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eac

Analysis

max time kernel
106s
max time network
111s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03/11/2024, 08:26

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General

Target

b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eacN.exe
Size

19KB
MD5

a34c77d7eaaf8c46da965d1a7496ddc0
SHA1

913e42d7abc2dc246f851d178f5681ed3293579b
SHA256

b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eac
SHA512

500d49091bb2e3907ea541f86ead7a2694d7a7fe99b3986a75154de2b07312a6591a23bbf84c43388bf2c26c3f3bab18049a1966e91764c4395fa32f07ed7500
SSDEEP

384:1FOS2XZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:PSQGPL4vzZq2o9W7GsxBbPr

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/4212-46-0x0000000000740000-0x0000000000749000-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/0x000c000000023b03-3.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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	wnrlUZ.exe

Executes dropped EXE 1 IoCs

pid	Process
4212	wnrlUZ.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	wnrlUZ.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\FullTrustNotifier.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe	wnrlUZ.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\123.0.6312.123\chrome_installer.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\EXCEL.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Mozilla Firefox\minidump-analyzer.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Office.OneNote_16001.12026.20112.0_x64__8wekyb3d8bbwe\onenoteshare.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javap.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Win32Bridge.Server.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\3DViewer.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe	wnrlUZ.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftStickyNotes_3.6.73.0_x64__8wekyb3d8bbwe\Microsoft.Notes.exe	wnrlUZ.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsSoundRecorder_10.1906.1972.0_x64__8wekyb3d8bbwe\SoundRec.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\idlj.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Cortana.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jjs.exe	wnrlUZ.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	wnrlUZ.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
3812	2944	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	b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eacN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wnrlUZ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 4212	2944	b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eacN.exe	84
PID 2944 wrote to memory of 4212	2944	b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eacN.exe	84
PID 2944 wrote to memory of 4212	2944	b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eacN.exe	84
PID 4212 wrote to memory of 5100	4212	wnrlUZ.exe	88
PID 4212 wrote to memory of 5100	4212	wnrlUZ.exe	88
PID 4212 wrote to memory of 5100	4212	wnrlUZ.exe	88

C:\Users\Admin\AppData\Local\Temp\b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eacN.exe
"C:\Users\Admin\AppData\Local\Temp\b5bbd08a0f090cf1439377dcef7f7c7e2c01b1ba785b25ecef921409eed52eacN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2944
- C:\Users\Admin\AppData\Local\Temp\wnrlUZ.exe
  C:\Users\Admin\AppData\Local\Temp\wnrlUZ.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:4212
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\200c788f.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:5100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2944 -s 724
  2⤵
  - Program crash
  PID:3812

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2944 -ip 2944
1⤵
PID:4288

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\200c788f.bat

Filesize
187B

MD5
d10216c949122ec55a2a539adcb83def

SHA1
ade3c2efb6ea28330d5c06e377ee3d7fbd54d355

SHA256
a74775255386c8801cb4cbedda09fe0d19c7552034be276474645f14c6d331f3

SHA512
cb955625933863ffe1e064f8dc5b8983e42ebbec2c0558bc1669576b3c65054a42eb1d6101398181a6041cdae544d1822f988e0f7743f38a0817169573543739

Download Submit
C:\Users\Admin\AppData\Local\Temp\4F86688E.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/2944-0-0x0000000001000000-0x0000000001008000-memory.dmp

Filesize
32KB

Download
memory/2944-48-0x0000000001000000-0x0000000001008000-memory.dmp

Filesize
32KB

Download
memory/4212-5-0x0000000000740000-0x0000000000749000-memory.dmp

Filesize
36KB

Download
memory/4212-46-0x0000000000740000-0x0000000000749000-memory.dmp

Filesize
36KB

Download