blackbasta | df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415

Analysis

max time kernel
149s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05/02/2025, 16:58

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General

Target

file.exe
Size

949KB
MD5

a292fee8d8db83711e72c06d6f82562d
SHA1

82f88c1af036181ee4e92a2f9338c152d1ff0c58
SHA256

df5b004be71717362e6b1ad22072f9ee4113b95b5d78c496a90857977a9fb415
SHA512

50a63500809fdc218b3d1cdc2cf402261e1c2d63c6f66088c857b03f6c7e7165835f9959b9d8200541e6f69dd149bdc0f7c0a0801caaeccfe0a9807e7f8289f1
SSDEEP

12288:RcOlvT7Zom3rITxaVDrd5vUa69Ghj91nlQocyW7/P6E4kKjqnes9PBVW/g:RDJJDbcJ90jtH0bP6ELVne2

Score

10^/10

blackbasta defense_evasion discovery execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Program Files\instructions_read_me.txt

Family

blackbasta

Ransom Note

ATTENTION! Your network has been breached and all data was encrypted. Please contact us at: https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/ Login ID: 7ab0444a-f73c-4ab0-b3a9-4c2ead84ecf1 *!* To access .onion websites download and install Tor Browser at: https://www.torproject.org/ (Tor Browser is not related to us) *!* To restore all your PCs and get your network working again, follow these instructions: - Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. It doesn't matter, who are trying to do this, either it will be your IT guys or a recovery agency. Please follow these simple rules to avoid data corruption: - Do not modify, rename or delete files. Any attempts to modify, decrypt or rename the files will lead to its fatal corruption. - Do not hire a recovery company. They can't decrypt without the key. They also don't care about your business. They believe that they are good negotiators, but it is not. They usually fail. So speak for yourself. Waiting you in a chat.

URLs

https://bastad5huzwkepdixedg2gekg7jk22ato24zyllp6lnjx7wdtyctgvyd.onion/

Signatures

Black Basta
A ransomware family targeting Windows and Linux ESXi first seen in February 2022.
ransomware blackbasta
Blackbasta family
blackbasta
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Renames multiple (9530) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\DataServices\DESKTOP.INI	file.exe

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\Mozilla Firefox\api-ms-win-core-timezone-l1-1-0.dll	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\DGDOTS.XML	file.exe
File created	C:\Program Files\VideoLAN\VLC\plugins\stream_out\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files (x86)\Google\Update\1.3.36.151\psmachine_64.dll	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\deploy\messages_zh_HK.properties	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\TWCUTLIN.DLL	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\org.eclipse.equinox.frameworkadmin.equinox.nl_ja_4.4.0.v20140623020002.jar	file.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\SlideShow.Gadget\en-US\css\settings.css	file.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Linguistics\Providers\Proximity\11.00\brt55.ths	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\DD01145_.WMF	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Templates\1033\ClassicPhotoAlbum.potx	file.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_elf.dll	file.exe
File created	C:\Program Files\Microsoft Games\Multiplayer\Checkers\de-DE\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\ja\UIAutomationProvider.resources.dll	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\modules\org-netbeans-modules-autoupdate-ui.jar	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\profiler\modules\org-netbeans-modules-profiler-api.jar	file.exe
File opened for modification	C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.0\Workflow.Targets	file.exe
File opened for modification	C:\Program Files (x86)\Windows Sidebar\Gadgets\Clock.Gadget\images\modern_dot.png	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms\bg_FormsHomePageBlank.gif	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\VSTA\ItemTemplates\CSharp\1033\AssemblyInfo.zip	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\fontconfig.bfc	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SY00882_.WMF	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD21308_.GIF	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\OFFICE14\BULLETS\BD21335_.GIF	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\America\Moncton	file.exe
File opened for modification	C:\Program Files\Mozilla Firefox\defaultagent.ini	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\SO00668_.WMF	file.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\TypeSupport\Unicode\Mappings\win\CP1258.TXT	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\macroprogress.gif	file.exe
File opened for modification	C:\Program Files\VideoLAN\VLC\THANKS.txt	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\FD00090_.WMF	file.exe
File created	C:\Program Files (x86)\Google\Update\Download\{8A69D345-D564-463C-AFF1-A69D9E530F96}\106.0.5249.119\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms3\FormsHomePageStyle.css	file.exe
File opened for modification	C:\Program Files\Common Files\System\msadc\de-DE\msdaprsr.dll.mui	file.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Rectangles\NavigationRight_SelectionSubpicture.png	file.exe
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Resource\Linguistics\Providers\Proximity\11.00\can03.ths	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.console.ui.notification_5.5.0.165303\html\dcommon\gifs\doclib.gif	file.exe
File opened for modification	C:\Program Files\Common Files\Microsoft Shared\Filters\offfiltx.dll	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0168644.WMF	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0299125.WMF	file.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Weather.Gadget\images\docked_blue_windy.png	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\plugins\com.jrockit.mc.rjmx_5.5.0.165303\icons\time-span-16.png	file.exe
File opened for modification	C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\fr\UIAutomationClientsideProviders.resources.dll	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\CLIPART\PUB60COR\J0153089.WMF	file.exe
File opened for modification	C:\Program Files\DVD Maker\Shared\DvdStyles\Full\NavigationUp_ButtonGraphic.png	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\microsoft shared\Web Server Extensions\14\BIN\1033\FPEXT.MSG	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\ORIG98.POC	file.exe
File opened for modification	C:\Program Files\Windows Media Player\en-US\wmlaunch.exe.mui	file.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\CPU.Gadget\it-IT\cpu.html	file.exe
File created	C:\Program Files\Windows Sidebar\Gadgets\PicturePuzzle.Gadget\ja-JP\css\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\PSRCHLEX.DAT	file.exe
File created	C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.0\RedistList\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\MEDIA\CAGCAT10\J0195812.WMF	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\3082\MSO.ACL	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Asia\Tashkent	file.exe
File opened for modification	C:\Program Files\Java\jre7\lib\zi\Europe\Amsterdam	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\PUBWIZ\SIDEBARVERTBB.DPV	file.exe
File created	C:\Program Files\Common Files\Microsoft Shared\ink\sl-SI\instructions_read_me.txt	file.exe
File opened for modification	C:\Program Files\Windows Sidebar\Gadgets\Calendar.Gadget\de-DE\css\calendar.css	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\button_mid_over.gif	file.exe
File opened for modification	C:\Program Files (x86)\Common Files\System\Ole DB\msdaorar.dll	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\.lastModified	file.exe
File opened for modification	C:\Program Files\Java\jdk1.7.0_80\lib\visualvm\platform\config\Modules\org-netbeans-swing-outline.xml	file.exe
File opened for modification	C:\Program Files (x86)\Microsoft Office\Office14\1033\GrooveForms5\bg_LightSpirit.gif	file.exe

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 2 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
1616	vssadmin.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vokou2s5g	file.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vokou2s5g\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fkdjsadasd.ico"	file.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vokou2s5g\DefaultIcon	file.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1668	vssvc.exe
Token: SeRestorePrivilege	1668	vssvc.exe
Token: SeAuditPrivilege	1668	vssvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2528 wrote to memory of 2532	2528	file.exe	30
PID 2528 wrote to memory of 2532	2528	file.exe	30
PID 2528 wrote to memory of 2532	2528	file.exe	30
PID 2528 wrote to memory of 2532	2528	file.exe	30
PID 2532 wrote to memory of 1616	2532	cmd.exe	32
PID 2532 wrote to memory of 1616	2532	cmd.exe	32
PID 2532 wrote to memory of 1616	2532	cmd.exe	32
PID 2532 wrote to memory of 1616	2532	cmd.exe	32

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2528
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2532
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\SysNative\vssadmin.exe delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:1616

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Browser Information Discovery

T1217

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact