bdaejec | df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080

Analysis

max time kernel
150s
max time network
134s
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, 11:24

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General

Target
df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe
Size 808KB
Sample260809-nhzf2aej3t
SHA256 df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080
MD5 7af338c461c5069d1e0fe91d95770b96
SHA1 49975f296e3e7b5c6ee97c6d5f0cd4a8e9305f08
SHA512 a4f6874390a3f7431797e42d4a51a770d82e33961e9456b01c43093f4cea18c9d1b6addcc972d73f06ffc63b4da479f5a7cedcb33d0ca025bebd96da71d9380f
SSDEEP 12288:LZaij2Ng3pCC1gvH8wvYxCnRfAmtRyxwwRrrWKWiYzK5fa+aqRx/f:1r9H/xCnRfrqgXiYmdPzv
TLSH
T1F70512113BB0C0B6D1752130A969E2D36E2E7B7199B1E8577789862C3C217C27D7BF0A
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
.vyia
offline_id
rpx4UUTYZiAR5omq187UvM233jloVHyJUkA8s3t1
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-hsmBOFHh66 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: 0413Jsfkjn

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/4824-9-0x0000000002490000-0x00000000025AB000-memory.dmp	family_djvu
behavioral2/memory/2416-10-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/1204-15-0x0000000000330000-0x0000000000339000-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/0x001000000001b1ad-4.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
1204	hBQf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4824 set thread context of 2416	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	89

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\Eula.exe	hBQf.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\Common.DBConnection64.exe	hBQf.exe
File opened for modification	C:\Program Files\Mozilla Firefox\nmhproxy.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender\MpDlpCmd.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstack.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SELFCERT.EXE	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\kinit.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	hBQf.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SkypeSrv\SKYPESERVER.EXE	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender\NisSrv.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jjs.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\schemagen.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jabswitch.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender\MpDlpService.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	hBQf.exe
File opened for modification	C:\Program Files (x86)\Google\GoogleUpdater\141.0.7340.0\disabledupdater.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javac.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\kinit.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaw.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaw.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.Loader.exe	hBQf.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\OLCFG.EXE	hBQf.exe
File opened for modification	C:\Program Files\Mozilla Firefox\crashreporter.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ssvagent.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	hBQf.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe	hBQf.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc-cache-gen.exe	hBQf.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsimport.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\Classification\SenseCE.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\policytool.exe	hBQf.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\java-rmi.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	hBQf.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseAP.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender\MpCmdRun.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender\mpextms.exe	hBQf.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SecHealthUI_1000.26100.1.0_x64__8wekyb3d8bbwe\SecHealthUI.exe	hBQf.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender\DlpUserAgent.exe	hBQf.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevated_tracing_service.exe	hBQf.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseCM.exe	hBQf.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	hBQf.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.exe	hBQf.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SDXHelperBgt.exe	hBQf.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
5800	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	hBQf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4824 wrote to memory of 1204	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	88
PID 4824 wrote to memory of 2416	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	89
PID 4824 wrote to memory of 2416	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	89
PID 4824 wrote to memory of 2416	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	89
PID 4824 wrote to memory of 2416	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	89
PID 4824 wrote to memory of 2416	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	89
PID 4824 wrote to memory of 2416	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	89
PID 4824 wrote to memory of 2416	4824	df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe	89
PID 1204 wrote to memory of 5800	1204	hBQf.exe	91

C:\Users\Admin\AppData\Local\Temp\df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe
"C:\Users\Admin\AppData\Local\Temp\df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4824
- C:\Users\Admin\AppData\Local\Temp\hBQf.exe
  C:\Users\Admin\AppData\Local\Temp\hBQf.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1204
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\488a6fb5.bat" "
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:5800
- C:\Users\Admin\AppData\Local\Temp\df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe
  "C:\Users\Admin\AppData\Local\Temp\df4cf6f6be06bfd7eaf23bffc9c16639573228bc72fd6262352a242b5bdf2080.exe"
  2⤵
  PID:2416

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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488a6fb5.bat

Path C:\Users\Admin\AppData\Local\Temp\488a6fb5.bat
Size 183B
SHA256 82d81ccdfffbf83d63ea90036bcc2cd01dd038957e0711233fd72fb98952017e
MD5 1df86e085cd2978a1d8bf3978ed3986d
SHA1 ffda8b408c72eb21fd0dc9e1248d940f501db985
SHA512 bb3584da434b0bb14b386cc8c2cd0c88bbf1d280af582ef72432004dbe64694658e6b82811b52e77ac007d55e41376547bceb148f43a487b542de46ab9dd5dbe
TLSH
T1B3C0120181E6CB59585450171AE9A14DD075089C3F492B114B20846C61B680DB5C7381
MD5 SHA1 SHA512 TLSH

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hBQf.exe

Path C:\Users\Admin\AppData\Local\Temp\hBQf.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/1204-5-0x0000000000330000-0x0000000000339000-memory.dmp

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memory/1204-15-0x0000000000330000-0x0000000000339000-memory.dmp

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memory/2416-10-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/4824-0-0x0000000000400000-0x00000000004FB000-memory.dmp

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memory/4824-8-0x00000000023F0000-0x0000000002482000-memory.dmp

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memory/4824-9-0x0000000002490000-0x00000000025AB000-memory.dmp

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memory/4824-12-0x0000000000400000-0x00000000004FB000-memory.dmp

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memory/4824-14-0x00000000023F0000-0x0000000002482000-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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