bdaejec | 3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4

Analysis

max time kernel
110s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
24/02/2025, 20:48

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General

Target

3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
Size

538KB
MD5

69ab79a62c3d023470e715ff1221dfa0
SHA1

35320089dda64cb1883283d9cb7978e865656337
SHA256

3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4
SHA512

a370cd1ed57e31de31d86203b86ae02bb5a69af81fe04b5e3291ab960652035737b027771b526efe833d590d47a4a684e8b9e870c74122d1cf5cc1f3b9678f80
SSDEEP

12288:hrMIztyCK5x8CBmn+RrNbEyWYa0Ie1vUx9V:3ZyCA8CBmn+RrNj9ay5I

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/2876-46-0x00000000004F0000-0x00000000004F9000-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/0x001100000001edd3-3.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-1-5-21-22591836-1183090055-1220658180-1000\Control Panel\International\Geo\Nation	NLKZEF.exe

Executes dropped EXE 1 IoCs

pid	Process
2876	NLKZEF.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\RCX1AE.tmp	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\gjabswitch.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jjs.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	NLKZEF.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ink\es-ES\InputPersonalization.exe.mui	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	NLKZEF.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	NLKZEF.exe
File created	C:\Program Files\Java\jdk-1.8\bin\gappletviewer.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\VideoLAN\VLC\guninstall.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\RCX26F.tmp	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\guninstall.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\123.0.6312.123\Installer\setup.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	NLKZEF.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\gMavInject32.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\Microsoft Office\Office16\gOSPPREARM.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	NLKZEF.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	NLKZEF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\Music.UI.exe	NLKZEF.exe
File created	C:\Program Files\7-Zip\7zG.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\MSInfo\msinfo32.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	NLKZEF.exe
File created	C:\Program Files\Java\jdk-1.8\bin\gjavadoc.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\misc.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	NLKZEF.exe
File opened for modification	C:\Program Files\7-Zip\g7zG.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\gchrome_proxy.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\gnotification_helper.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\gOSE.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\misc.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\IntegratedOffice.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\gjdeps.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\gAppSharingHookController.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\RCX2A2.tmp	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	NLKZEF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.People_10.1902.633.0_x64__8wekyb3d8bbwe\PeopleApp.exe	NLKZEF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\ScreenSketch.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0409-1000-0000000FF1CE}\misc.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\gIntegratedOffice.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe	NLKZEF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	NLKZEF.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSQRY32.EXE	NLKZEF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe	NLKZEF.exe
File created	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Internet Explorer\en-US\iexplore.exe.mui	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-000F-0000-1000-0000000FF1CE}\accicons.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-006E-0409-1000-0000000FF1CE}\gmisc.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe	NLKZEF.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\GameBar.exe	NLKZEF.exe
File created	C:\Program Files\Common Files\microsoft shared\OFFICE16\LICLUA.EXE	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.123\notification_helper.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	NLKZEF.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\gOfficeC2RClient.ico	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\gVSTOInstaller.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\bfsvc.exe	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.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	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NLKZEF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 2876	1144	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe	87
PID 1144 wrote to memory of 2876	1144	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe	87
PID 1144 wrote to memory of 2876	1144	3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe	87
PID 2876 wrote to memory of 3148	2876	NLKZEF.exe	89
PID 2876 wrote to memory of 3148	2876	NLKZEF.exe	89
PID 2876 wrote to memory of 3148	2876	NLKZEF.exe	89

C:\Users\Admin\AppData\Local\Temp\3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe
"C:\Users\Admin\AppData\Local\Temp\3f78157bc69d91b4651fb247534c48ab70d511c36565749199b5360bd850a6e4N.exe"
1⤵
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Users\Admin\AppData\Local\Temp\NLKZEF.exe
  C:\Users\Admin\AppData\Local\Temp\NLKZEF.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:2876
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\60a75200.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3148

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

Replay Monitor

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Downloads

C:\Program Files\7-Zip\RCX3A.tmp

Filesize
538KB

MD5
c0863766b43569ec262c0bbacee4305f

SHA1
503b920279e5fc25009cf7febed93525b4cd8572

SHA256
009fd1477d6fff65817121657bebd1c0fcca6adf422420f44b7e8b078578852b

SHA512
813dbf82b1fe025d08101fd15b7ae8106d6a1c43b3768906afa1171dece4c9fce54dab887257ea9ebc610db31d8a3d369fefa3446b94e490c65b06bf480d1f46

Download Submit
C:\Program Files\7-Zip\Uninstall.exe

Filesize
31KB

MD5
6e47c6b3c03528483deda0e02741c0cb

SHA1
a6770a2b6ce7708ad6cf1c1a8ebf739103da6b3c

SHA256
e4e1f7ea88819702afba00fd29846bca59ffa5ce369c59a65b8a4e82b4942124

SHA512
d1a65973edddceac3897fe91cf3655a1c65ea1705231117a6f38312411373ce855f01206016ad4862f69d58a5f656d2d448b112aaa34d37359472721d8246d03

Download Submit
C:\Program Files\Java\jdk-1.8\bin\gjavaws.ico

Filesize
4KB

MD5
38b41d03e9dfcbbd08210c5f0b50ba71

SHA1
2fbfde75ce9fe8423d8e7720bf7408cedcb57a70

SHA256
611f2cb2e03bd8dbcb584cd0a1c48accfba072dd3fc4e6d3144e2062553637f5

SHA512
ec97556b6ff6023d9e6302ba586ef27b1b54fbf7e8ac04ff318aa4694f13ad343049210ef17b7b603963984c1340589665d67d9c65fec0f91053ff43b1401ba9

Download Submit
C:\Program Files\Microsoft Office 15\ClientX64\gIntegratedOffice.ico

Filesize
4KB

MD5
3ea9bcbc01e1a652de5a6fc291a66d1a

SHA1
aee490d53ee201879dff37503a0796c77642a792

SHA256
a058bfd185fe714927e15642004866449bce425d34292a08af56d66cf03ebe6c

SHA512
7c740132f026341770b6a20575786da581d8a31850d0d680978a00cc4dfca1e848ef9cdc32e51bae680ea13f6cc0d7324c38765cb4e26dcb2e423aced7da0501

Download Submit
C:\Program Files\Microsoft Office\root\vfs\Windows\Installer\{90160000-001F-0C0A-1000-0000000FF1CE}\gmisc.ico

Filesize
4KB

MD5
fc27f73816c9f640d800cdc1c9294751

SHA1
e6c3d8835d1de4e9606e5588e741cd1be27398f6

SHA256
3cc5043caa157e5f9b1870527b8c323850bdae1e58d6760e4e895d2ab8a35a05

SHA512
9e36b96acc97bc7cd45e67a47f1ae7ab7d3818cc2fdaad147524ce9e4baedfaac9cd012923ec65db763bfd850c65b497376bb0694508bee59747f97bf1591fd4

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VHQUNTV1\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\01510C76.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\60a75200.bat

Filesize
187B

MD5
a1f514d7fd8155fb2a598492a8f37071

SHA1
dcf620c48907333e2a2a7cef53b664ef63099027

SHA256
7d3fb7c5cffdcfda7d4c2756a33de90c611d278939fa83ced11931e2b5acea73

SHA512
ba50fe36ecb76db0859b19caa59136bf537bc238f827e7f49601787111f4055b31ed83b87b216dd9f0e20a7e3b5167a435372e823fcb116a3e93263015ae9cfc

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1144-7-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/1144-0-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/1144-293-0x0000000000400000-0x0000000000492000-memory.dmp

Filesize
584KB

Download
memory/1144-295-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/2876-46-0x00000000004F0000-0x00000000004F9000-memory.dmp

Filesize
36KB

Download
memory/2876-4-0x00000000004F0000-0x00000000004F9000-memory.dmp

Filesize
36KB

Download