bdaejec | 2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29e

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
27-10-2024 14:53

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General

Target

2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe
Size

60KB
MD5

58a19a9a0aa6b43144aa8b164317b820
SHA1

a49b9026ea435898d498d620169993861d3b1919
SHA256

2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29e
SHA512

8a2ade5d299047df99c1792042e9d70b65d607f7adb521302d0a607725b3a838534c741af00197d43375304243e4c5537405b36df5d94c93526296ae77f871bf
SSDEEP

768:ya1qGZIyiZjaflAkOCpwjWviZKB7JD6gK2QGPL4vzZq2o9W7GsxBbPr:ya1jZCZj83Hpwav4KDDRqGCq2iW7z

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/1676-48-0x00000000008A0000-0x00000000008A9000-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/0x000c000000023b08-5.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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	MRBFXKM.exe

Executes dropped EXE 1 IoCs

pid	Process
1676	MRBFXKM.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.YourPhone_0.19051.7.0_x64__8wekyb3d8bbwe\YourPhone.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jabswitch.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\ktab.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jjs.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.VP9VideoExtensions_1.0.22681.0_x64__8wekyb3d8bbwe\codecpacks.VP9.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\3DViewer.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\serialver.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jp2launcher.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jabswitch.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\extcheck.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Maps.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebMediaExtensions_1.0.20875.0_x64__8wekyb3d8bbwe\Microsoft.WebMediaExtensions.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\keytool.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateOnDemand.exe	MRBFXKM.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\PilotshubApp.exe	MRBFXKM.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe	MRBFXKM.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MRBFXKM.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 1676	1712	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe	84
PID 1712 wrote to memory of 1676	1712	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe	84
PID 1712 wrote to memory of 1676	1712	2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe	84
PID 1676 wrote to memory of 4112	1676	MRBFXKM.exe	89
PID 1676 wrote to memory of 4112	1676	MRBFXKM.exe	89
PID 1676 wrote to memory of 4112	1676	MRBFXKM.exe	89

C:\Users\Admin\AppData\Local\Temp\2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe
"C:\Users\Admin\AppData\Local\Temp\2044f5b3d1fea1ae395ce733f5bebca50319ee4a28e804276e9a28c04765c29eN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\MRBFXKM.exe
  C:\Users\Admin\AppData\Local\Temp\MRBFXKM.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:1676
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\562e7978.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4112

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\0GUUC90F\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\562e7978.bat

Filesize
189B

MD5
200cfcda39949abe048e24a42368caa0

SHA1
358607ce01e6c500f506ff15066f9514b8356045

SHA256
3ba753745513fabef3529d3c4f63babd0be3a5e509aec2451ae30e9088727fee

SHA512
24344a24702b3b1fb1206e24576ed0536abbc6bdf11409295a56b7e59da1f05d8e3e478645e55ec725f72d35bc198f33f4eaec689ccfec664d4bdad49fb39e3d

Download Submit
C:\Users\Admin\AppData\Local\Temp\70951773.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1676-6-0x00000000008A0000-0x00000000008A9000-memory.dmp

Filesize
36KB

Download
memory/1676-48-0x00000000008A0000-0x00000000008A9000-memory.dmp

Filesize
36KB

Download
memory/1712-0-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/1712-4-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download