bdaejec | 01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd

Analysis

max time kernel
148s
max time network
114s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
24/08/2026, 04:35

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General

Target
01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
Size 828KB
Sample260824-e724sashnd
SHA256 01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd
MD5 de2d29373ade9c3b8b13c8ef6798ffc0
SHA1 0f4b8c0b9f0c9dbe972303a2072321d45ecc2ab8
SHA512 6530b6cbee303621ae356e238dae6f800288609b58bf06028dc7784bf42ea7489c4713296b8988011970934c84a4cd562f1b44420531f1188e95f8534a2ed11c
SSDEEP 24576:H8R4J3kkCbtdsWhwgDaPWqimnOP8DeXXI:H8sd6lhwgDaPWqdDeo
TLSH
T150050210B691C034F4B726F445B683B8A62E7EE19B2490CF63D12AFE57356E1EC3125B
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/1352-10-0x0000000002460000-0x000000000257B000-memory.dmp	family_djvu
behavioral2/memory/2768-11-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Detects Bdaejec Backdoor. 1 IoCs

Bdaejec is backdoor written in C++.

resource	yara_rule
behavioral2/memory/5072-15-0x0000000000CE0000-0x0000000000CE9000-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/0x000a00000001136f-6.dat	aspack_v212_v242

Executes dropped EXE 1 IoCs

pid	Process
5072	rYp.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1352 set thread context of 2768	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	90

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jar.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\javapackager.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\unpack200.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Integration\Addons\OneDriveSetup.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\VPREVIEW.EXE	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DW20.EXE	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\Smart Tag\SmartTagInstall.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\AppSharingHookController.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdb.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jrunscript.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\kinit.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoev.exe	rYp.exe
File opened for modification	C:\Program Files\Windows Defender\Offline\OfflineScannerShell.exe	rYp.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\Installer\chrmstp.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoia.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\PerfBoost.exe	rYp.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseNdr.exe	rYp.exe
File opened for modification	C:\Program Files\Windows Mail\wab.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jstatd.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\rmid.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\DW\DWTRIG20.EXE	rYp.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javaws.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\ktab.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\WINWORD.EXE	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\tnameserv.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\servertool.exe	rYp.exe
File opened for modification	C:\Program Files\Windows Defender Advanced Threat Protection\SenseCM.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmiregistry.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\wsgen.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\java-rmi.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\rmid.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX86\Microsoft Office\Office16\DCF\SPREADSHEETCOMPARE.EXE	rYp.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\javacpl.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jre-1.8\bin\pack200.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSREC.EXE	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX64\Microsoft Shared\OFFICE16\MSOXMLED.EXE	rYp.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\java.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\misc.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\POWERPNT.EXE	rYp.exe
File opened for modification	C:\Program Files\Windows Defender\MpDefenderCoreService.exe	rYp.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	rYp.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	rYp.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\jp2launcher.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate64.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\MSOSYNC.EXE	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\officeappguardwin32.exe	rYp.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\orbd.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\vfs\ProgramFilesX64\Microsoft Analysis Services\AS OLEDB\140\SQLDumper.exe	rYp.exe
File opened for modification	C:\Program Files\Windows Defender\MpCopyAccelerator.exe	rYp.exe
File opened for modification	C:\Program Files (x86)\Google\GoogleUpdater\141.0.7340.0\disabledupdater.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\javaws.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\msoasb.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\protocolhandler.exe	rYp.exe
File opened for modification	C:\Program Files\Mozilla Firefox\private_browsing.exe	rYp.exe
File opened for modification	C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe	rYp.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Client\AppVDllSurrogate32.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\rmic.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jdeps.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\bin\jhat.exe	rYp.exe
File opened for modification	C:\Program Files\Java\jdk-1.8\jre\bin\servertool.exe	rYp.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
3956	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	rYp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1352 wrote to memory of 5072	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	89
PID 1352 wrote to memory of 2768	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	90
PID 1352 wrote to memory of 2768	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	90
PID 1352 wrote to memory of 2768	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	90
PID 1352 wrote to memory of 2768	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	90
PID 1352 wrote to memory of 2768	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	90
PID 1352 wrote to memory of 2768	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	90
PID 1352 wrote to memory of 2768	1352	01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe	90
PID 5072 wrote to memory of 3956	5072	rYp.exe	93

C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
"C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1352
- C:\Users\Admin\AppData\Local\Temp\rYp.exe
  C:\Users\Admin\AppData\Local\Temp\rYp.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5072
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\1ec16aa3.bat" "
    3⤵
    - Executes a command shell one-liner
    - System Location Discovery: System Language Discovery
    PID:3956
- C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe
  "C:\Users\Admin\AppData\Local\Temp\01f5a1f72f3f59e7b23627dff52e6dc3d9f166b864d639d2cbe40fd8c7327ddd.exe"
  2⤵
  PID:2768

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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1ec16aa3.bat

Path C:\Users\Admin\AppData\Local\Temp\1ec16aa3.bat
Size 181B
SHA256 cafa197b98db8f31fd7897092f7701431cb4891c804781321d1465431df6db34
MD5 032a6ba28e51de9e54b06998550ede48
SHA1 008c25813ec2924ca5e35ebe505a46f76ee20c93
SHA512 a40ff23e48c3c7d698309747701f2702879886b4a22ab81b17f965346d4715f1072563664639259446cfb368d9bf3f855e8005c28279e77e87406b789dc5b629
TLSH
T149C012928396C76E1864603B2AE1A18EE06A0CA83BCA6B214B20845C75A681DBAC3301
MD5 SHA1 SHA512 TLSH

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rYp.exe

Path C:\Users\Admin\AppData\Local\Temp\rYp.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/1352-2-0x0000000000400000-0x0000000000575000-memory.dmp

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memory/1352-9-0x0000000002300000-0x000000000239A000-memory.dmp

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memory/1352-10-0x0000000002460000-0x000000000257B000-memory.dmp

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memory/1352-14-0x0000000000400000-0x0000000000575000-memory.dmp

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memory/2768-11-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/5072-5-0x0000000000CE0000-0x0000000000CE9000-memory.dmp

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memory/5072-15-0x0000000000CE0000-0x0000000000CE9000-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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