bdaejec | 4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2

Analysis

max time kernel
148s
max time network
128s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
09/08/2026, 09:51

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe
Size 792KB
Sample260809-lvssxadj2y
SHA256 4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2
MD5 502d888ea54c803993572355cc829b54
SHA1 408ad3c6791d64372ac3583717efa33562d47a35
SHA512 459356b89907a972b7eacbbaa5ac8147c62105ccc0bcc42ae1bbb9133eb3929a1f6dc9b64860ec5c6daeba69cb058a56276f554f3e5c24cef5c25eaaea68e016
SSDEEP 12288:QOl/e0TCHSyxtbdGDtAl/HTG8EHpUMc4PwunvuhEFo:Qo/ebHSwdQDahHRjM9wQ2h0o
TLSH
T1890523623522F273C44286327863D362462E78B1097AA443F7494F1D3F727A2DAF674E
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
.mmuz
offline_id
dYUDKE4rrBmSPsf8srHMsyP40jle9uyxDDCfdxt1
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-NdDG3HIUZp 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: 0428Jsfkjn

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/4400-9-0x0000000002420000-0x000000000253B000-memory.dmp	family_djvu
behavioral2/memory/4660-10-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/4032-15-0x0000000000B90000-0x0000000000B99000-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/0x001100000001b664-6.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
4032	OmbNjE.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4400 set thread context of 4660	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.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\AcroCEF\RdrServicesUpdater.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\extcheck.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\klist.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX45.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\MSOHTMED.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\Mozilla Firefox\default-browser-agent.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Windows Photo Viewer\ImagingDevices.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javah.exe	OmbNjE.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wab.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\pack200.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	OmbNjE.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jconsole.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javacpl.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\filecompare.exe	OmbNjE.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOUC.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jps.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaws.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaw.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\Office16\OSPPREARM.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVLP.exe	OmbNjE.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\uninstall.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\notification_helper.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Mozilla Firefox\uninstall\helper.exe	OmbNjE.exe
File opened for modification	C:\Program Files\WindowsApps\Microsoft.SecHealthUI_1000.26100.1.0_x64__8wekyb3d8bbwe\SecHealthUI.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jmap.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\SCANPST.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\Windows Defender\MpDefenderCoreService.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Mozilla Firefox\firefox.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Windows Defender\MpDlpCmd.exe	OmbNjE.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javafxpackager.exe	OmbNjE.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AdobeCollabSync.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\EQUATION\eqnedt32.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\vlc.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseTVM.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javaws.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\ktab.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\policytool.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\ktab.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\DATABASECOMPARE.EXE	OmbNjE.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	OmbNjE.exe
File opened for modification	C:\Program Files (x86)\Windows Mail\wabmig.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jsadebugd.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\chrome_pwa_launcher.exe	OmbNjE.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	OmbNjE.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
1904	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	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	OmbNjE.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 4032	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe	88
PID 4400 wrote to memory of 4660	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe	89
PID 4400 wrote to memory of 4660	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe	89
PID 4400 wrote to memory of 4660	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe	89
PID 4400 wrote to memory of 4660	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe	89
PID 4400 wrote to memory of 4660	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe	89
PID 4400 wrote to memory of 4660	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe	89
PID 4400 wrote to memory of 4660	4400	4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe	89
PID 4032 wrote to memory of 1904	4032	OmbNjE.exe	91

C:\Users\Admin\AppData\Local\Temp\4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe
"C:\Users\Admin\AppData\Local\Temp\4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4400
- C:\Users\Admin\AppData\Local\Temp\OmbNjE.exe
  C:\Users\Admin\AppData\Local\Temp\OmbNjE.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4032
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1dd171bc.bat" "
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:1904
- C:\Users\Admin\AppData\Local\Temp\4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe
  "C:\Users\Admin\AppData\Local\Temp\4f1bcdcbc93f0edf7a5b94c5da7b46ee72d4ba9619862036ed1cb202a07385c2.exe"
  2⤵
  PID:4660

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

Replay Monitor

Loading Replay Monitor...

Downloads

1dd171bc.bat

Path C:\Users\Admin\AppData\Local\Temp\1dd171bc.bat
Size 187B
SHA256 3c951f2af1a84d67cce9cd041947e5e7f1e30ac25ecea22538ea48f9fb855d8e
MD5 a876a67b288972d133066884cefccfa2
SHA1 f1237ecb0998482b7b328a0a57f1449f8a425f17
SHA512 4ef6e06c637ff7c7452f78abf22d2dac3853de54679e012012d746541de53634722cff586d79495b62e9015a8199f4cf76261168e099f6918deb82f9bc8ef7d4
TLSH
T1E7C01212D287CBB91854501706E2A14CD07518593B4B6B315B31889E619641DF9D3301
MD5 SHA1 SHA512 TLSH

Submit Download

OmbNjE.exe

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

Submit Download

memory/4032-5-0x0000000000B90000-0x0000000000B99000-memory.dmp

Download

memory/4032-15-0x0000000000B90000-0x0000000000B99000-memory.dmp

Download

memory/4400-0-0x0000000000400000-0x000000000050A000-memory.dmp

Download

memory/4400-8-0x0000000002380000-0x0000000002412000-memory.dmp

Download

memory/4400-9-0x0000000002420000-0x000000000253B000-memory.dmp

Download

memory/4400-14-0x0000000002380000-0x0000000002412000-memory.dmp

Download

memory/4400-13-0x0000000000400000-0x000000000050A000-memory.dmp

Download

memory/4660-10-0x0000000000400000-0x0000000000537000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads