bdaejec | 36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-01-2025 00:25

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General

Target

36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe
Size

1.9MB
MD5

f44e2553b0ce14fcad1a32319107c812
SHA1

ccc7d924e59ba8173cb28351b40b441685ced33d
SHA256

36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8
SHA512

ace28baa5b7620856a1fb5591671b33f3df3225196c9815ff7013573f0c8d9322f600aa6e46321cc495ca6cf1ed0d006da984dbd1841a99819d44a04b19eb223
SSDEEP

24576:D26jt3G+/f4gQw8jHosWzgFjwMQIeCHBIZXiHgpPx/rIEKz7sOCDHwS/g40Q5Gz6:DpgkrzgVmjCh9CNDKXsrDDWQQzORzP

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/556-53-0x00000000004A0000-0x00000000004A9000-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/0x000c000000023b1f-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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	WkJTKq.exe

Executes dropped EXE 1 IoCs

pid	Process
556	WkJTKq.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Getstarted_8.2.22942.0_x64__8wekyb3d8bbwe\WhatsNew.Store.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\servertool.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmiregistry.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmic.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Microsoft3DViewer_6.1908.2042.0_x64__8wekyb3d8bbwe\View3D.ResourceResolver.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsMaps_5.1906.1972.0_x64__8wekyb3d8bbwe\Maps.exe	WkJTKq.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaw.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxTsr.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.GetHelp_10.1706.13331.0_x64__8wekyb3d8bbwe\GetHelp.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.XboxApp_48.49.31001.0_x64__8wekyb3d8bbwe\XboxApp.exe	WkJTKq.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleCrashHandler.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\idlj.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	WkJTKq.exe
File opened for modification	C:\Program Files (x86)\Google\Update\Install\{AFD1DC19-D740-4861-ADFA-3BC6A9F6A223}\chrome_installer.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxAccounts.exe	WkJTKq.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.WindowsAlarms_10.1906.2182.0_x64__8wekyb3d8bbwe\Time.exe	WkJTKq.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	WkJTKq.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateBroker.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.BingWeather_4.25.20211.0_x64__8wekyb3d8bbwe\Microsoft.Msn.Weather.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxOutlook.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javap.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\Wordconv.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Windows.Photos_2019.19071.12548.0_x64__8wekyb3d8bbwe\Microsoft.Photos.exe	WkJTKq.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateComRegisterShell64.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office 15\ClientX64\IntegratedOffice.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.MSPaint_6.1907.29027.0_x64__8wekyb3d8bbwe\PaintStudio.View.exe	WkJTKq.exe
File opened for modification	C:\Program Files\WindowsApps\microsoft.windowscommunicationsapps_16005.11629.20316.0_x64__8wekyb3d8bbwe\HxCalendarAppImm.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	WkJTKq.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	WkJTKq.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	WkJTKq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5092	36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe
5092	36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 556	5092	36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe	83
PID 5092 wrote to memory of 556	5092	36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe	83
PID 5092 wrote to memory of 556	5092	36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe	83
PID 556 wrote to memory of 1672	556	WkJTKq.exe	84
PID 556 wrote to memory of 1672	556	WkJTKq.exe	84
PID 556 wrote to memory of 1672	556	WkJTKq.exe	84

C:\Users\Admin\AppData\Local\Temp\36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe
"C:\Users\Admin\AppData\Local\Temp\36a31449a88798938fb855f3ee69ad0d8963fd04a7a615523ebf334ea4b370f8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Users\Admin\AppData\Local\Temp\WkJTKq.exe
  C:\Users\Admin\AppData\Local\Temp\WkJTKq.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:556
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\36a7341c.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1672

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\VKYZDMA5\k2[1].rar

Filesize
4B

MD5
d3b07384d113edec49eaa6238ad5ff00

SHA1
f1d2d2f924e986ac86fdf7b36c94bcdf32beec15

SHA256
b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c

SHA512
0cf9180a764aba863a67b6d72f0918bc131c6772642cb2dce5a34f0a702f9470ddc2bf125c12198b1995c233c34b4afd346c54a2334c350a948a51b6e8b4e6b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\0D5C11E7.exe

Filesize
4B

MD5
20879c987e2f9a916e578386d499f629

SHA1
c7b33ddcc42361fdb847036fc07e880b81935d5d

SHA256
9f2981a7cc4d40a2a409dc895de64253acd819d7c0011c8e80b86fe899464e31

SHA512
bcdde1625364dd6dd143b45bdcec8d59cf8982aff33790d390b839f3869e0e815684568b14b555a596d616252aeeaa98dac2e6e551c9095ea11a575ff25ff84f

Download Submit
C:\Users\Admin\AppData\Local\Temp\36a7341c.bat

Filesize
187B

MD5
fb5d664d119e0ce9a2e86efe9929982d

SHA1
eaefb8e08be8cc2c1fbd85f3d1ca4221f4f7385c

SHA256
412c0568f1ff805ded0752fa0cf61639f3eda03ce963c5644eb88521c4151e22

SHA512
6bbc2ad092d4749b27990af1db11252479e8c0bf399d566817a70ad054e617b8567d320d4842cf034bb624bb72de84c271e9dcbc278e0672a24d25c78f4b9bc5

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

Filesize
15KB

MD5
56b2c3810dba2e939a8bb9fa36d3cf96

SHA1
99ee31cd4b0d6a4b62779da36e0eeecdd80589fc

SHA256
4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07

SHA512
27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e

Download Submit
memory/556-4-0x00000000004A0000-0x00000000004A9000-memory.dmp

Filesize
36KB

Download
memory/556-53-0x00000000004A0000-0x00000000004A9000-memory.dmp

Filesize
36KB

Download
memory/5092-0-0x0000000000400000-0x0000000000607000-memory.dmp

Filesize
2.0MB

Download
memory/5092-10-0x0000000010000000-0x000000001003C000-memory.dmp

Filesize
240KB

Download
memory/5092-55-0x0000000000400000-0x0000000000607000-memory.dmp

Filesize
2.0MB

Download
memory/5092-56-0x0000000010000000-0x000000001003C000-memory.dmp

Filesize
240KB

Download