bdaejec | a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b

Analysis

max time kernel
150s
max time network
136s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
07/11/2026, 22:27

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General

Target
a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b.exe
Size 1.8MB
Sample261107-2dhjlsfy4w
SHA256 a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b
MD5 865700756438590898ea1982bf4eb47e
SHA1 fc81e63c9e8f50c3ddda0fbd6ee0094618592005
SHA512 b90605b4d79f6aa817a7f8016dad7feba1c3692d3ea2c15f03eb97f1c164a48f39cae7c1837c5d4432b6e42b1d7e3cd2c646b86d1d81aa15337e69bf4cacdc89
SSDEEP 49152:BfAnads7NV3aIsPteNfIXIJCiNHKdqb3YpVt+xAgxXj/4:hAnadsxV3aXeNfI4YiFH0VtKAgxXD4
TLSH
T1DE852396D22AC722F17FC57455717967CA264C1A2A02052BED76FFCE24BAEF0258C313
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

aspackv2 backdoor discovery execution bdaejec upx

Malware Config

Extracted

Family

bdaejec

ddos.dnsnb8.net

Signatures

Family: Bdaejec
Bdaejec is a backdoor written in C++.
backdoor bdaejec

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/5872-44-0x0000000000150000-0x0000000000159000-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/0x000600000001b6ed-4.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
5872	DLkyiT.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3796-0-0x0000000000400000-0x00000000007FA000-memory.dmp	upx
behavioral2/memory/3796-9-0x0000000000400000-0x00000000007FA000-memory.dmp	upx
behavioral2/memory/3796-42-0x0000000000400000-0x00000000007FA000-memory.dmp	upx
behavioral2/memory/3796-43-0x0000000000400000-0x00000000007FA000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jabswitch.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SETLANG.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\serialver.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\xjc.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmiregistry.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseCM.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\notification_helper.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javap.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\GRAPH.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\XLICONS.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nmhproxy.exe	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Windows Defender\MpCopyAccelerator.exe	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WORDICON.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Windows Defender\NisSrv.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\keytool.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\MpCmdRun.exe	DLkyiT.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaws.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseTVM.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\MsSense.exe	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\reader_sl.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javah.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jinfo.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\NAMECONTROLSERVER.EXE	DLkyiT.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	DLkyiT.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseSampleUploader.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	DLkyiT.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	DLkyiT.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
556	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	DLkyiT.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	DLkyiT.exe

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	a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DLkyiT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3796	a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b.exe
3796	a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3796 wrote to memory of 5872	3796	a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b.exe	89
PID 5872 wrote to memory of 556	5872	DLkyiT.exe	91

C:\Users\Admin\AppData\Local\Temp\a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b.exe
"C:\Users\Admin\AppData\Local\Temp\a866738b887e724430c5e6055a81201948cb1ec39be05b9fe317b4e12ccc6a5b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3796
- C:\Users\Admin\AppData\Local\Temp\DLkyiT.exe
  C:\Users\Admin\AppData\Local\Temp\DLkyiT.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Reads the TCP/IP host and domain name from the registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5872
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\208d27ca.bat" "
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:556

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

k2[1].rar

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\MTNU6HGG\k2[1].rar
Size 1B
SHA256 01ba4719c80b6fe911b091a7c05124b64eeece964e09c058ef8f9805daca546b
MD5 68b329da9893e34099c7d8ad5cb9c940
SHA1 adc83b19e793491b1c6ea0fd8b46cd9f32e592fc
SHA512 be688838ca8686e5c90689bf2ab585cef1137c999b48c70b92f67a5c34dc15697b5d11c982ed6d71be1e1e7f7b4e0733884aa97c3f7a339a8ed03577cf74be09
MD5 SHA1 SHA512

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208d27ca.bat

Path C:\Users\Admin\AppData\Local\Temp\208d27ca.bat
Size 187B
SHA256 1bc57ea95a89a0db72586031d77ad2c6156739008c15460b0614edb6e3e74798
MD5 324c29af052aacf8cea1e07e32fa020d
SHA1 58909ef8f1c0a810d9f868c8212de46a09aa1a74
SHA512 2b3f0a3fc0af5472bcff24696cfd86f6924405ff98178dd6a9dcb8194e062272fb65312692760b3a48b312eb2a337ba943458aa70f0cbcdb438d07f4a7dba82f
TLSH
T1E2C012018186CB5E9454901B86F6618CC0754C583F892F114B21C45CA5E740DB6C3301
MD5 SHA1 SHA512 TLSH

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72B900EF.exe

Path C:\Users\Admin\AppData\Local\Temp\72B900EF.exe
Size 1B
SHA256 08f271887ce94707da822d5263bae19d5519cb3614e0daedc4c7ce5dab7473f1
MD5 69691c7bdcc3ce6d5d8a1361f22d04ac
SHA1 c63ae6dd4fc9f9dda66970e827d13f7c73fe841c
SHA512 253405e03b91441a6dd354a9b72e040068b1bfe10e83eb1a64a086c05525d8ccae2bf09130c624af50d55c3522a4fbb7c18cfc8dd843e5f4801d9ad2b5164b12
MD5 SHA1 SHA512

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DLkyiT.exe

Path C:\Users\Admin\AppData\Local\Temp\DLkyiT.exe
Size 15KB
SHA256 4354970ccc7cd6bb16318f132c34f6a1b3d5c2ea7ff53e1c9271905527f2db07
MD5 56b2c3810dba2e939a8bb9fa36d3cf96
SHA1 99ee31cd4b0d6a4b62779da36e0eeecdd80589fc
SHA512 27812a9a034d7bd2ca73b337ae9e0b6dc79c38cfd1a2c6ac9d125d3cc8fa563c401a40d22155811d5054e5baa8cf8c8e7e03925f25fa856a9ba9dea708d15b4e
SSDEEP 384:7XZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:1QGPL4vzZq2o9W7GsxBbPr
TLSH
T10B62BFB34EC098FFC4CD353340823687CB7B4670DABA617F826288372895E19AC55595
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3796-0-0x0000000000400000-0x00000000007FA000-memory.dmp

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memory/3796-8-0x00000000007F4000-0x00000000007F5000-memory.dmp

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memory/3796-9-0x0000000000400000-0x00000000007FA000-memory.dmp

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memory/3796-42-0x0000000000400000-0x00000000007FA000-memory.dmp

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memory/3796-43-0x0000000000400000-0x00000000007FA000-memory.dmp

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memory/5872-5-0x0000000000150000-0x0000000000159000-memory.dmp

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memory/5872-44-0x0000000000150000-0x0000000000159000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads