bdaejec | 3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1

Analysis

max time kernel
148s
max time network
113s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/08/2026, 10:45

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General

Target
3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe
Size 797KB
Sample260809-mtsxyswekd
SHA256 3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1
MD5 40de22d9150a7f07d814a55de2ef7369
SHA1 1444c9ddb4f7bf880ef1956cda052d45c9542a78
SHA512 fe7a9f23484698cd096c42b490877ed70b9da0e056fc490fbcab4ef40d201f8a97b769385b96e117bb8b0412e3255d8fc07066e3b80fab9c9732fffedf07ad60
SSDEEP 12288:e+gMexAdpVj8UhYGsK/3Pf2QEKWjRZoir5o+/AVKoZo+IWeFfCk3vvg07:zgMekDPoXOiJoVhtsfCk3vv57
TLSH
T1C30523233FD1C076D06B7434806CE7A19B3EA6339A7185877B091B7D1FA16C1DA3A74A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

aspackv2 backdoor discovery execution bdaejec djvu ransomware

Malware Config

Extracted

Family

djvu

http://fuyt.org/fhsgtsspen6/get.php

Attributes

extension
.bpqd
offline_id
y6oQcfhmSRc7ZQ1q8yjLE3LhY8kK7FHg6LLlEht1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-zHDj26n4NW Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0418Jsfkjn

rsa_pubkey.plain

Extracted

Family

bdaejec

ddos.dnsnb8.net

Signatures

Family: Bdaejec
Bdaejec is a backdoor written in C++.
backdoor bdaejec
Family: Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Detected Djvu ransomware 2 IoCs

resource	yara_rule
behavioral2/memory/1496-10-0x00000000024E0000-0x00000000025FB000-memory.dmp	family_djvu
behavioral2/memory/3132-11-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/3284-15-0x0000000000920000-0x0000000000929000-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/0x000a000000019cc9-4.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
3284	TWqOxG.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1496 set thread context of 3132	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	90

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Windows Mail\wab.exe	TWqOxG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\os_update_handler.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE	TWqOxG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\64BitMAPIBroker.exe	TWqOxG.exe
File opened for modification	C:\Program Files (x86)\Google\GoogleUpdater\141.0.7340.0\disabledupdater.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\native2ascii.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseSampleUploader.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmid.exe	TWqOxG.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVLP.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	TWqOxG.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	TWqOxG.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SecHealthUI_1000.26100.1.0_x64__8wekyb3d8bbwe\SecHealthUI.exe	TWqOxG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\orbd.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\pack200.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Windows Defender\MpCmdRun.exe	TWqOxG.exe
File opened for modification	C:\Program Files (x86)\Google\Update\DisabledGoogleUpdate.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\keytool.exe	TWqOxG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\wow_helper.exe	TWqOxG.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelper.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\ktab.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoadfsb.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Windows Defender\NisSrv.exe	TWqOxG.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Windows Mail\wabmig.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\FLTLDR.EXE	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Windows Defender\MpDlpService.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	TWqOxG.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ssvagent.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\keytool.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\orbd.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Windows Defender\MpDefenderCoreService.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\setup.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ORGCHART.EXE	TWqOxG.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.ShowHelp.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	TWqOxG.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\Classification\SenseCE.exe	TWqOxG.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
1120	cmd.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	TWqOxG.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 3284	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	88
PID 1496 wrote to memory of 3132	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	90
PID 1496 wrote to memory of 3132	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	90
PID 1496 wrote to memory of 3132	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	90
PID 1496 wrote to memory of 3132	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	90
PID 1496 wrote to memory of 3132	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	90
PID 1496 wrote to memory of 3132	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	90
PID 1496 wrote to memory of 3132	1496	3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe	90
PID 3284 wrote to memory of 1120	3284	TWqOxG.exe	92

C:\Users\Admin\AppData\Local\Temp\3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe
"C:\Users\Admin\AppData\Local\Temp\3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Users\Admin\AppData\Local\Temp\TWqOxG.exe
  C:\Users\Admin\AppData\Local\Temp\TWqOxG.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3284
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\2a971b07.bat" "
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:1120
- C:\Users\Admin\AppData\Local\Temp\3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe
  "C:\Users\Admin\AppData\Local\Temp\3a2eca1c4531aea65c300c0e9808dc89585ac9c41b92cea707d40cc1cdb087c1.exe"
  2⤵
  PID:3132

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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2a971b07.bat

Path C:\Users\Admin\AppData\Local\Temp\2a971b07.bat
Size 187B
SHA256 857096d51a28be9640935e0e9323c214f0afa8c633e2c80065585ec1cba02e1e
MD5 268d3677767af28aadc18166a5028ca9
SHA1 5f6a2f0d36890d2b875ca5cf1cdf9f0497439669
SHA512 1e7c0cd6184f1bd2b0e78e1013c70f7b590177c95c396a0caab3c33050746c05f32fcb5c53c9d1ad4ded2a4d864b93840a726d44e150120ffcde98895a0db40c
TLSH
T1A9C01242858BC65A1C64541706F5628CC0A908583BC93F129F21C85EA99681DB5CFB41
MD5 SHA1 SHA512 TLSH

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TWqOxG.exe

Path C:\Users\Admin\AppData\Local\Temp\TWqOxG.exe
Size 15KB
SHA256 4485df22c627fa0bb899d79aa6ff29bc5be1dbc3caa2b7a490809338d54b7794
MD5 f7d21de5c4e81341eccd280c11ddcc9a
SHA1 d4e9ef10d7685d491583c6fa93ae5d9105d815bd
SHA512 e4553b86b083996038bacfb979ad0b86f578f95185d8efac34a77f6cc73e491d4f70e1449bbc9eb1d62f430800c1574101b270e1cb0eeed43a83049a79b636a3
SSDEEP 384:IXZQaD7U8iu4YsAa7ZA0UvH2lsRv21yW7GbAxur6+Y9PffPz:gQGPL4vzZq2o9W7GsxBbPr
TLSH
T1A462BFB34FC098FFC4CD353341853687CB7B4670DABA617F826288372895E19AC55495
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1496-0-0x0000000000400000-0x00000000004F9000-memory.dmp

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memory/1496-9-0x0000000002300000-0x000000000239C000-memory.dmp

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memory/1496-10-0x00000000024E0000-0x00000000025FB000-memory.dmp

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memory/1496-14-0x0000000000400000-0x00000000004F9000-memory.dmp

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memory/3132-11-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/3284-6-0x0000000000920000-0x0000000000929000-memory.dmp

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memory/3284-15-0x0000000000920000-0x0000000000929000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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