bdaejec | e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9

Analysis

max time kernel
148s
max time network
146s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
31/07/2026, 10:01

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General

Target
e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe
Size 791KB
Sample260731-l2jhta1sft
SHA256 e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9
MD5 3a11d47ad1a6093ddfe84e48e77554f3
SHA1 bdbce8ed4a6b1347b0f1ad23184709e82ccd0249
SHA512 052f42c4c09f15b5589f9287714d664b0d19b367a7583cc86e250e20728cc7ce4314511210906ce2dd7fdfca595ec6a382c63869b91a6c94b59103889e974149
SSDEEP 12288:9/DSCunCjrhA3fJs8ewDpc8b/JaBJjmyBgSxMlHkygSiioboEAIeVu/DjkV+hT6:kOyx5eAHrJaBjBgS4BgSSxeVu/8UG
TLSH
T15A050210AB90D035E17356F58D7A97ADB52E79A05B24A0CF63D52EEB1734BD0EC3230A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

aspackv2 backdoor discovery execution bdaejec djvu ransomware

Malware Config

Extracted

Family

djvu

http://fuyt.org/test1/get.php

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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-0S984cQ4B3 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: 0430JIjdm

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/3788-10-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4084-11-0x0000000002390000-0x00000000024AB000-memory.dmp	family_djvu

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/1620-15-0x0000000000520000-0x0000000000529000-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/0x000b00000001b87e-4.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
1620	HhVfIB.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4084 set thread context of 3788	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	90

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\pingsender.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseCM.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	HhVfIB.exe
File opened for modification	C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOHTMED.EXE	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Defender\DlpUserAgent.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	HhVfIB.exe
File opened for modification	C:\Program Files (x86)\Google\GoogleUpdater\141.0.7340.0\disabledupdater.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Defender\MpCmdRun.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Defender\MpCopyAccelerator.exe	HhVfIB.exe
File opened for modification	C:\Program Files (x86)\Windows Defender\MpCmdRun.exe	HhVfIB.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Mozilla Firefox\plugin-container.exe	HhVfIB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\OLicenseHeartbeat.exe	HhVfIB.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\createdump.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\klist.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\IEContentService.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOICONS.EXE	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	HhVfIB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plug_ins\pi_brokers\32BitMAPIBroker.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jcmd.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PPTICO.EXE	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	HhVfIB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\orbd.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	HhVfIB.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javap.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\CLVIEW.EXE	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	HhVfIB.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\createdump.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\policytool.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\tnameserv.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Defender\ConfigSecurityPolicy.exe	HhVfIB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe	HhVfIB.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\jabswitch.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Defender\mpextms.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseIR.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Integrator.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nmhproxy.exe	HhVfIB.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.Edge.GameAssist_1.0.3456.0_x64__8wekyb3d8bbwe\EdgeGameAssist.exe	HhVfIB.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseAP.exe	HhVfIB.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\appletviewer.exe	HhVfIB.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
4956	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	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HhVfIB.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4084 wrote to memory of 1620	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	89
PID 4084 wrote to memory of 3788	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	90
PID 4084 wrote to memory of 3788	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	90
PID 4084 wrote to memory of 3788	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	90
PID 4084 wrote to memory of 3788	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	90
PID 4084 wrote to memory of 3788	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	90
PID 4084 wrote to memory of 3788	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	90
PID 4084 wrote to memory of 3788	4084	e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe	90
PID 1620 wrote to memory of 4956	1620	HhVfIB.exe	92

C:\Users\Admin\AppData\Local\Temp\e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe
"C:\Users\Admin\AppData\Local\Temp\e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Users\Admin\AppData\Local\Temp\HhVfIB.exe
  C:\Users\Admin\AppData\Local\Temp\HhVfIB.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1620
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\02f80920.bat" "
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:4956
- C:\Users\Admin\AppData\Local\Temp\e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe
  "C:\Users\Admin\AppData\Local\Temp\e565c0b80462bd207d991cb9d9fd34c9d72b45e4696797f9d59f0e153b3a54a9.exe"
  2⤵
  PID:3788

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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02f80920.bat

Path C:\Users\Admin\AppData\Local\Temp\02f80920.bat
Size 187B
SHA256 ddbfd59e64b3b1de17b9a5da26499260f80d5b7c7904c74e8dbff222de0fa5eb
MD5 8f8b94bff04c39cbb3b98d835c776f88
SHA1 f4fad0d6e4813dd3f9563edefe8d1bb8904be7ca
SHA512 ff3dea91bf22e33c0aece5be517b358af925e98d50daebe8dd7f495d39b7955619fd0cb0c4880d330717bbcbf5aa789f4caa0779cd4e122d7794f453c57d4947
TLSH
T13AC0120181CBC65D195450171EE1614CC0660C683B696F154B21845DB296C1DB9E7311
MD5 SHA1 SHA512 TLSH

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HhVfIB.exe

Path C:\Users\Admin\AppData\Local\Temp\HhVfIB.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/1620-5-0x0000000000520000-0x0000000000529000-memory.dmp

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memory/1620-15-0x0000000000520000-0x0000000000529000-memory.dmp

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memory/3788-10-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4084-0-0x0000000000400000-0x00000000004F2000-memory.dmp

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memory/4084-9-0x00000000022F0000-0x0000000002384000-memory.dmp

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memory/4084-14-0x0000000000400000-0x00000000004F2000-memory.dmp

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memory/4084-11-0x0000000002390000-0x00000000024AB000-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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