bdaejec | 33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01

Analysis

max time kernel
94s
max time network
123s
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, 21:36

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General

Target

33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01.exe
Size

68KB
MD5

6cacd7023e58394535efbebaa7f3571e
SHA1

c74a737bf17d8de686371e0322a4245f92fce225
SHA256

33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01
SHA512

6e7526f71bf3147a43dddb09551a154210af5fcad6bcdc3433300a091f14d1e2edb465baaffad981f87b2ae828b665aba95c479f93469a03b281505de9ff0967
SSDEEP

1536:e0XbeQ8xG0Kqjc6lLFfSortZBMDu8B3GCq2iW7z:PXbeFK2JSGOuAGCH

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/1436-45-0x00000000007D0000-0x00000000007D9000-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/0x000e000000023c05-3.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	HtFWSd.exe

Executes dropped EXE 1 IoCs

pid	Process
1436	HtFWSd.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\extcheck.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	HtFWSd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	HtFWSd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	HtFWSd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javap.exe	HtFWSd.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Microsoft.MicrosoftSolitaireCollection.exe	HtFWSd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\idlj.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaw.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\unpack200.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ScreenSketch_10.1907.2471.0_x64__8wekyb3d8bbwe\ScreenSketch.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jjs.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe	HtFWSd.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\klist.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVLP.exe	HtFWSd.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MicrosoftSolitaireCollection_4.4.8204.0_x64__8wekyb3d8bbwe\Solitaire.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	HtFWSd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdate.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jjs.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\serialver.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\IntegratedOffice.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe	HtFWSd.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jconsole.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	HtFWSd.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jjs.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PDFREFLOW.EXE	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	HtFWSd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	HtFWSd.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	HtFWSd.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	HtFWSd.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WebpImageExtension_1.0.22753.0_x64__8wekyb3d8bbwe\codecpacks.webp.exe	HtFWSd.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	HtFWSd.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	33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HtFWSd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 1436	2744	33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01.exe	84
PID 2744 wrote to memory of 1436	2744	33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01.exe	84
PID 2744 wrote to memory of 1436	2744	33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01.exe	84
PID 1436 wrote to memory of 3820	1436	HtFWSd.exe	89
PID 1436 wrote to memory of 3820	1436	HtFWSd.exe	89
PID 1436 wrote to memory of 3820	1436	HtFWSd.exe	89

C:\Users\Admin\AppData\Local\Temp\33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01.exe
"C:\Users\Admin\AppData\Local\Temp\33e8df2cbeb59ded3ce4b8ba4763031970a583fd8bee6256b6c0c95c4f743e01.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744
- C:\Users\Admin\AppData\Local\Temp\HtFWSd.exe
  C:\Users\Admin\AppData\Local\Temp\HtFWSd.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:1436
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7fc4692a.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3820

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\VHQUNTV1\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\2DF070B7.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\7fc4692a.bat

Filesize
187B

MD5
dcbe36a8b4adefe8f9a132630bdf5038

SHA1
ba4b19667ddbc56bb5ae040f3fc1f4bdd936d50d

SHA256
f4e7fc56051f3a6d581969b5320d725f57ee2901672ba9a2fd62453b18c01938

SHA512
b8d23af25ce389580bdde12e559d3b49e3c2e9e42af626efd8cb38e6166610af91387c3a3646ac299e9ce9d0bb47eb4ff02b5b27f265a94a2f0fa58fe3725b02

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/1436-4-0x00000000007D0000-0x00000000007D9000-memory.dmp

Filesize
36KB

Download
memory/1436-45-0x00000000007D0000-0x00000000007D9000-memory.dmp

Filesize
36KB

Download
memory/2744-0-0x00000000009C0000-0x00000000009D6000-memory.dmp

Filesize
88KB

Download
memory/2744-47-0x00000000009C0000-0x00000000009D6000-memory.dmp

Filesize
88KB

Download
memory/2744-48-0x00000000009C0000-0x00000000009D6000-memory.dmp

Filesize
88KB

Download