bdaejec | 425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa

Analysis

max time kernel
114s
max time network
109s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2025 20:18

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General

Target

425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa.exe
Size

31KB
MD5

3c9a7cd527f3fa60ce78a30be03c8d2a
SHA1

4e73667a965760b20e23f85479ed1e254342babe
SHA256

425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa
SHA512

252961a9bf79349b9786ac26fd5fe5dd89778372248ff3119b43b4278799304d9fe445f7fea771c38141626a36e83da6bc28f0a1c0848dad2664b821ad50f2ee
SSDEEP

768:uWQ3655Kv1X/qY1MSd6vQGPL4vzZq2o9W7GsxBbPrq:uHqaNrFd6oGCq2iW7zu

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/4664-30-0x0000000000F70000-0x0000000000F79000-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/0x000c000000023b02-3.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	wjfIhu.exe

Executes dropped EXE 1 IoCs

pid	Process
4664	wjfIhu.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javah.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\ktab.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.549981C3F5F10_1.1911.21713.0_x64__8wekyb3d8bbwe\Win32Bridge.Server.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxIdentityProvider_12.50.6001.0_x64__8wekyb3d8bbwe\XboxIdp.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jarsigner.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	wjfIhu.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java-rmi.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\orbd.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javadoc.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Source Engine\OSE.EXE	wjfIhu.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstat.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection.exe	wjfIhu.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MixedReality.Portal_2000.19081.1301.0_x64__8wekyb3d8bbwe\MixedRealityPortal.Brokered.exe	wjfIhu.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	wjfIhu.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\GameBar.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\Video.UI.exe	wjfIhu.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe	wjfIhu.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	wjfIhu.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\SkypeBridge\SkypeBridge.exe	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxSpeechToTextOverlay_1.17.29001.0_x64__8wekyb3d8bbwe\SpeechToTextOverlay64-Retail.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javap.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.exe	wjfIhu.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\createdump.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmid.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	wjfIhu.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsCalculator_10.1906.55.0_x64__8wekyb3d8bbwe\Calculator.exe	wjfIhu.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\tnameserv.exe	wjfIhu.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	wjfIhu.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	wjfIhu.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3400 wrote to memory of 4664	3400	425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa.exe	83
PID 3400 wrote to memory of 4664	3400	425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa.exe	83
PID 3400 wrote to memory of 4664	3400	425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa.exe	83
PID 4664 wrote to memory of 4352	4664	wjfIhu.exe	92
PID 4664 wrote to memory of 4352	4664	wjfIhu.exe	92
PID 4664 wrote to memory of 4352	4664	wjfIhu.exe	92

C:\Users\Admin\AppData\Local\Temp\425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa.exe
"C:\Users\Admin\AppData\Local\Temp\425abf9da5da520af6251d039bcd682d05540ee733be1fb03e5ea77fa894f7fa.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3400
- C:\Users\Admin\AppData\Local\Temp\wjfIhu.exe
  C:\Users\Admin\AppData\Local\Temp\wjfIhu.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:4664
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\52905e5f.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4352

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\O32JA4D6\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\1B107783.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\52905e5f.bat

Filesize
187B

MD5
984f38b534e4af96d3e634ed333e5026

SHA1
bca6027217eaff0dc22eb8f954a7639605af6099

SHA256
aba334310d7e04bf8dacaf5f1ee9ff42e0752c799f2c12de674b36d1c9348892

SHA512
ac24d2607f617b3b955576f4eb5039995fd76d9361b4b1bab897d8e26f506502eead90a070e1bfb6d2eba1c3b7c78e71e217e13a2214f993d1b376180bf3d373

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/3400-0-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3400-29-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/3400-31-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/4664-5-0x0000000000F70000-0x0000000000F79000-memory.dmp

Filesize
36KB

Download
memory/4664-30-0x0000000000F70000-0x0000000000F79000-memory.dmp

Filesize
36KB

Download